Great Wall - Hover - Wiring Diagram - 2010 - 2010

Great Wall Motors 5R35 Automatic Transmission GWM-PPT V2010.1 Improving little by little everyday Great Wall Motors GWM-PPT V2010.1 2 Improving little by little everyday Contents Chapter 1: Knowledge of 5R35 Automatic Transmissions Chapter 2: Repair & Maintenance of 5R35 Automatic Transmissions GWM-PPT V2010.1 3 Improving little by little everyday Chapter 1: Knowledge of 5R35 Automatic Transmissions Ⅰ. General description of 5R35 automatic transmissions Ⅱ. Operating principles for 5R35 automatic transmission Ⅲ. Structure of 5R35 automatic transmission GWM-PPT V2010.1 4 Improving little by little everyday Ⅰ. General Description of 5R35 Automatic Transmissions 5R35 transmission, a 5-speed automatic transmission fitted on Haval H5 of Great Wall Motors, is provided with full-range electronic control and sports mode which reduce the vibration of transmission, realize stable driving and bring the driving pleasure as with the manual transmission. The optimum performance of the transmission is achieved by AT electronic control system which controls the driving condition and internal state of AT control unit via AT control unit and control valve assembly. GWM-PPT V2010.1 5 Improving little by little everyday 5R35 Automatic Transmission Assembly GWM-PPT V2010.1 6 Improving little by little everyday 5R35 Automatic Transmission Parameters Specifications Items Drive system Type of hydrodynamic torque converter Transmission type Engine displacement Gear shifting Three-dimensional, first order, two-phase Five drive gears and one reversing gear 2.0L Diesel engine Cable 1st gear 2st gear 3st gear 4st gear Speed ratio 5st gear Reversing gear Shift mode Gear range Control methods Lock control Operating hydraulic control Function Real-time feedback and transport control Real-time feedback and transport control Self-diagnosis control GWM-PPT V2010.1 Configured Configured Configured Sports mode function Type Configured Configured Configured Oil pump Drive mode Engine-driven pump Fault protection function Oil pump variable 4 positions (P-R-N-D) + sports mode Electronic control Configured 7 Improving little by little everyday Drawing of 5R35 Automatic Transmission Assembly 1. Transmission assembly 2. Hydrodynamic torque converter 3. Manual control lever 4. ATF cooling pipe 5. Ventilation hose 6. Vent plug 7. Oil drain plug 8. Screw plug 9. Wiring harness connector GWM-PPT V2010.1 8 Improving little by little everyday Internal Diagram of 5R35 Automatic Transmission Assembly GWM-PPT V2010.1 9 Improving little by little everyday Ⅱ. Operating Principles for 5R35 Automatic Transmission Working components of 5R35 automatic transmission ○-Working ◎-Working during acceleration ◇-Working during coasting ◇〃Working only under manual mode △-Working but having no impact on transmission of power △〃-Working at proper vehicle speed. GWM-PPT V2010.1 10 Improving little by little everyday Cross Reference Table of Functions of 5R35 Automatic Transmission Actuating Elements Part name Function Front brake Fastening the front sun gear Input clutch Make the input shaft engage with the middle and front annular gear. Direct clutch Make the rear planetary gear carrier engage with the rear sun gear. High/low reverse clutch GWM-PPT V2010.1 Abbreviation Make the middle sun gear engage with the rear sun gear. Reverse brake Fasten the rear planetary gear carrier. Forward brake Fasten the middle sun gear Low-cost brake Fasten the middle sun gear 1st one-way clutch Allow the rear sun gear to rotate forward (relative to the sun gear) freely and fasten it when it rotates backward. Forward one-way clutch Allow the rear sun gear to rotate forward freely and fasten it when it rotates backward. 3rd one-way clutch Allow the rear sun gear to rotate forward freely and fasten it when it rotates backward. 11 Improving little by little everyday Operating Principles for N/P Gear of 5R35 Automatic Transmission • Neutral gear (N): the driving torque of input shaft will not be transferred to the output shaft as the forward brake and reverse brake have been released. • Parking gear (P): Similar to N gear, the driving torque of input shaft will not be transferred to the output shaft as the forward brake and reverse brake have been released. • The parking pawl connected with the shift lever is engaged with the parking lock mechanism and mechanically fastens the output shaft. GWM-PPT V2010.1 12 Improving little by little everyday Operating Principles for 1st Gear of 5R35 Automatic Transmission • D, M2, M3, M4, M5 gear -1st gear • Fasten the front brake. • Front brake and forward one-way clutch control the reverse rotation of the middle sun gear. • 1st one-way clutch controls the reverse rotation of the rear sun gear. • 3rd one-way clutch controls the reverse rotation of the front sun gear. • During deceleration, the middle sun gear rotates forward so that the forward one-way clutch idles and the engine brake is not activated. GWM-PPT V2010.1 13 Improving little by little everyday Power Transmission Line of 1st Gear of 5R35 Automatic Transmission Note: the heavy line in the diagram represents the components in operation and the continuous thin line represents the components not in operation. • Power transmission process: • Input shaft →front annular gear →front planetary carrier → rear annular gear →rear planetary carrier →middle annular gear→ middle planetary carrier→ output shaft GWM-PPT V2010.1 14 Improving little by little everyday Operating Principles for 2nd Gear of 5R35 Automatic Transmission • D, M3, M4, M5 gears 2nd gear • Fasten the front brake. • Front brake and forward one-way clutch control the reverse rotation of the middle sun gear. • 3rd one-way clutch controls the reverse rotation of the front sun gear. • The direct clutch is connected and the rear planetary carrier is engaged with the rear sun gear. GWM-PPT V2010.1 15 Improving little by little everyday Power Transmission Line of 2nd Gear of 5R35 Automatic Transmission • Power transmission process: • Input shaft →front annular gear →front planetary carrier → rear annular gear →rear planetary carrier →middle annular gear→ middle planetary carrier→ output shaft GWM-PPT V2010.1 16 Improving little by little everyday Operating Principles for 3rd Gear of 5R35 Automatic Transmission • D, M3, M4, M5 gears 3nd gear • Fasten the front brake. • 3rd one-way clutch controls the reverse rotation of the front sun gear. • High/low reverse clutch is connected and the middle sun gear is engaged with the rear sun gear. GWM-PPT V2010.1 17 Improving little by little everyday Power Transmission Line of 3rd Gear of 5R35 Automatic Transmission • Power transmission process: • Input shaft →front annular gear →front planetary carrier → rear annular gear →rear planetary carrier →middle annular gear→ middle planetary carrier→ output shaft GWM-PPT V2010.1 18 Improving little by little everyday Operating Principles for 4th Gear of 5R35 Automatic Transmission • D, M4, M5 gears 4th gear • The front brake is released that the sun gear rotates forward freely. • The input clutch is connected and the front annular gear is engaged with the middle annular gear. • The driving force is transmitted to the front annular gear, middle annular gear and rear planetary carrier, the three planetary gear systems which rotate forward together as a whole. GWM-PPT V2010.1 19 Improving little by little everyday Power Transmission Line of 4th Gear of 5R35 Automatic Transmission Power transmission process: Input shaft front annular gear rear planetary front planetary carrier rear annular gear middle annular gear carrier middle planetary carrier GWM-PPT V2010.1 output shaft 20 Improving little by little everyday Operating Principles for 5th Gear of 5R35 Automatic Transmission • D, M5 gears 5th gear • The front brake fastens the front sun gear. • The direct clutch is released and the rear planetary carrier is disconnected with the rear sun gear. GWM-PPT V2010.1 21 Power Transmission Line of 5th Gear of 5R35 Automatic Transmission Power transmission process: Input shaft front annular gear front planetary carrier rear annular gear Input shaft middle annular gear rear planetary carrier rear sun gear middle sun gear GWM-PPT V2010.1 middle planetary carrier output shaft 22 Improving little by little everyday Operating Principles for Reverse Gear of 5R35 Automatic Transmission • R gear • The front brake fastens the front sun gear. • The high/low reverse clutch is connected and the middle sun gear is engaged with the rear sun gear. • The reverse brake fastens the rear planetary carrier. GWM-PPT V2010.1 23 Improving little by little everyday Power Transmission Line of Reverse Gear of 5R35 Automatic Transmission Power transmission process: • Input shaft →front annular gear →front planetary carrier → rear annular gear →rear planetary carrier →middle annular gear→ middle planetary carrier→ output shaft GWM-PPT V2010.1 24 Improving little by little everyday Ⅲ. Structure of 5R35 Automatic Transmission F/B brake band Front sun gear Rear annular gear Middle annular gear Rear sun gear HLR clutch LC/B brake hub FWD one-way clutch I/C Clutch Oil pump housing GWM-PPT V2010.1 Middle planetary carrier Rear planetary carrier Output shaft Middle sun gear Gasket D/C clutch REV/B brake hub FWD/B brake hub Parking gear 25 Improving little by little everyday Part Name of 5R35 Automatic Transmission Housing Hand control gearshift valve shaft F/B brake piston FWD/B brake Input shaft F/B brake band REV/B brake GWM-PPT V2010.1 Automatic transmission housing 26 Improving little by little everyday Parking Mechanism of 5R35 Automatic Transmission Parking gear Parking clamping block Output speed sensor Control mechanism GWM-PPT V2010.1 27 Improving little by little everyday Parking Mechanism of 5R35 Automatic Transmission Parking pawl shaft Return spring Parking gear V-V section view Cam Parking clamping block Parking clamping block Parking pushrod Control mechanism Stop plate Return spring GWM-PPT V2010.1 28 Improving little by little everyday Internal Part Name of 5R35 Automatic Transmission F/B brake band Output shaft Input shaft Clutch & planetary gear set GWM-PPT V2010.1 Parking gear 29 Improving little by little everyday Clutch for 5R35 Automatic transmission Clutch hub Snap spring GWM-PPT V2010.1 Clutch disc Clutch piston 30 Improving little by little everyday Operating Principles for Clutch of 5R35 Automatic Transmission Sealing ring Snap ring Steel disc Friction lining Piston Output shaft Input shaft Clutch engaging Return spring Components of clutch GWM-PPT V2010.1 Clutch detaching Engagement: when there exits oil pressure in the left cavity of piston, the piston moves rightwards against the action of return spring and presses out the friction lining and steel disc, so that the clutch is engaged and the friction force is occurred, and then the power is transmitted from the input shaft to the output shaft. Detaching: when there is no oil pressure in the left cavity of piston, the piston moves leftwards under the action of return spring; at this time, there is no pressing force between the steel disc and the friction lining, so the clutch is detached and the power cannot be transmitted from the input shaft to the output shaft. 31 Improving little by little everyday Oil reservoir • Clutch performance regulating valve—With this structure, two oil reservoirs can be provided for the direct clutch piston, and thus the clutch performance can be regulated if necessary. • With the help of this structure, the gear shifting performance is improved and the balance between various performances is maintained. • Piston which eliminates centrifugal force—Rotary clutch uses the piston to eliminate the centrifugal force, so that the hydraulic action caused by the centrifugal force is eliminated. GWM-PPT V2010.1 32 Improving little by little everyday One-way Clutch for 5R35 Automatic Transmission One-way clutch wedge GWM-PPT V2010.1 33 Improving little by little everyday Operating Principles for One-way Clutch of 5R35 Automatic Transmission The one-way clutch is used for fixing or connecting certain sun gears, planetary carriers, annular gears and other basic elements in several planetary gear sets, so as to achieve the gears of different drive ratios for the planetary transmission. And the fixing or connecting action is exerted through the one-way locking mechanism, so the fixing or connecting action can be made only in single direction. The element can be fixed or connected when the forced direction and locking direction of the element connected with it is the same, and be released or disconnected when the two directions are opposite. GWM-PPT V2010.1 34 Improving little by little everyday Free state Outer ring Inner ring Wedge condition Locking state GWM-PPT V2010.1 Wedge 35 Improving little by little everyday Disc Brake Lining Set for 5R35 Automatic Transmission Steel disc Friction lining The disc brake (equivalent to the clutch drum) is fixed on the automatic transmission housing; when the brake operates, certain element in the planetary gear set connected with the brake hub will be fixed and cannot rotate. GWM-PPT V2010.1 36 Improving little by little everyday Band Brake for 5R35 Automatic Transmission Brake hub GWM-PPT V2010.1 Brake band 37 Improving little by little everyday Brake hub Brake band Pushrod Piston Housing Adjustment screw Return spring Internal Spring Band brake under non-braking status GWM-PPT V2010.1 38 Improving little by little everyday Band brake under braking status GWM-PPT V2010.1 39 Improving little by little everyday Planetary Gear Mechanism of 5R35 Automatic Transmission Middle annular gear GWM-PPT V2010.1 Middle planetary carrier 40 Improving little by little everyday Planetary gear drive rules Drive scheme for planetary gear mechanism Scheme No. Fixture Driving parts Sun gear Driven parts Planetary carrier Speed status Rotating direction Deceleration Same direction Annular gear Planetary carrier Sun gear Acceleration Annular gear Planetary carrier Deceleration Planetary carrier Annular gear Acceleration Sun gear Annular gear Deceleration Annular gear Sun gear Acceleration Sun gear Same direction Opposite direction Planetary carrier Any two components are integrated No component is fixed, and any two components are not integrated GWM-PPT V2010.1 Direct drive Neutral gear (not transmitting power) 41 Improving little by little everyday Hydraulic pump of 5R35 automatic transmission • An internally tangent gear pump is used for the pump. • The power consumption of the pump is minimized by improving mechanical efficiency. • The pump, made of steel and aluminum, is light in weight. GWM-PPT V2010.1 42 Improving little by little everyday Pressing port of pump Driven gear Suction port of pump Drive gear GWM-PPT V2010.1 Crescent plate 43 Improving little by little everyday Operating principles for hydraulic pump of 5R35 automatic transmission During the operation of pump, the driving gear drives the driven gear to rotate, and at the end of gear disengagement (inlet cavity), the volume becomes larger and larger, resulting in vacuum suction force which prompts the ATF to flow into the pump from oil sump through strainer. And at the end of gear engagement (outlet cavity), the volume becomes smaller and smaller, and the oil pressure rises, which results in ATF being squeezed out from the oil cavity. Therefore, pump runs constantly to generate the oil with certain pressure which is supplied for the working of automatic transmission. GWM-PPT V2010.1 44 Improving little by little everyday 5R35 automatic transmission fluid filter • After the automatic transmission hydraulic system components have been in use for a long time, the fluid may deteriorate or be polluted by dust particles in the air due to wear particles of parts, friction lining peeling off or excessive wear of seal, which may cause stuck slide valve and blocked orifice. Therefore, strict measures should be taken to filter the fluid. GWM-PPT V2010.1 45 Improving little by little everyday Hydraulic unit of 5R35 automatic transmission Valve block assembly Internal wiring harness Solenoid GWM-PPT V2010.1 46 Improving little by little everyday Functions of hydraulic unit for 5R35 automatic transmission • Hydraulic unit is the interface between computer and machinery; • Ensure the flow and pressure required for implementing some function; • Provide or cut off the supply for clutch and brake; • Provide the supply for torque converter loop, lubrication loop and cooling circuit. GWM-PPT V2010.1 47 Improving little by little everyday Hydrodynamic torque converter • Hydrodynamic torque converter is a single-stage two-phase three-dimensional type converter, which transmits engine power to automatic transaxle. • The physical form of the following part of the hydrodynamic torque converter is changed from round shape to flat form, which is helpful for reducing the length. GWM-PPT V2010.1 48 Improving little by little everyday Vortex flow of Hydrodynamic torque converter Liquid flow The liquid flow which flows into pump impeller, turbine and guide wheel successively and at last returns to the impeller is called vortex flow GWM-PPT V2010.1 49 Improving little by little everyday Circulating flow of hydrodynamic torque converter Liquid flow The liquid flow along the rotating direction of hydrodynamic torque converter is called circulating flow GWM-PPT V2010.1 The actual liquid flow direction has the shape of a helix resultant of vortex and circulating flow 50 Improving little by little everyday Working condition of hydrodynamic torque converter at low vehicle speed The vortex flow speed Va is higher than the circulating flow speed Vb. The resultant flow with the resultant speed Vc of the two Pump impeller B Guide wheel D is locked Turbine W flow impacts the front of guide wheel, so the one-way clutch is locked as taking effect, which causes increased output torque of turbine MW=MB+MD. GWM-PPT V2010.1 51 Improving little by little everyday Working condition of hydrodynamic torque converter at medium vehicle speed As the turbine speed is 0.85 times the impeller speed, the resultant liquid flow direction is tangential to the guide wheel blade, MD=0. At this time, the Pump impeller B Guide wheel D Turbine W hydrodynamic torque converter acts as a coupler, and the corresponding speed is called as “coupling point”. GWM-PPT V2010.1 52 Improving little by little everyday Working condition of hydrodynamic torque converter at high vehicle speed When the pump impeller speed closes to the turbine speed, vortex flow speed reaches the lowest while circulating flow speed reaches the highest, and then the resultant flow impacts the back of guide wheel. At this time, Pump impeller B Turbine W Guide wheel D rotates freely GWM-PPT V2010.1 one-way clutch is released, and the guide wheel rotates freely. 53 Improving little by little everyday Chapter 2: Repair & Maintenance of 5R35 Automatic Transmission Check of 5R35 automatic transmission fluid level 1. Renewal of 5R35 automatic transmission fluid 2. Stall test of 5R35 automatic transmission 3. Pressure test of 5R35 automatic transmission pipeline 4. Correct traction for vehicle with 5R35 automatic transmission 5. Reading of fault code of 5R35 automatic transmission GWM-PPT V2010.1 54 Improving little by little everyday 1. Check of 5R35 automatic transmission fluid level 1. Drive the vehicle for 10 minutes under urban traffic condition after engine warm-up (the air temperature is 20℃, and the fluid temperature reaches 70-80℃ after 10min of driving). 2. Park the vehicle on a level ground, and apply the parking brake. 3. When the engine is idling, push the shift lever to N position from P position while depressing the brake pedal. 4. When the P or N gear is engaged, check whether the fluid level is within the specified range of the dipstick. GWM-PPT V2010.1 55 Improving little by little everyday 5. Wipe off all dirt all over the dipstick before taking it out. Note: If the transmission fluid smells burnt, it means that the fluid is polluted by bushing and wear particles, and it may be necessary to check & repair the transmission. 6. Check whether the fluid level is lower than HOT mark of dipstick. If the level is low, refill AFT till the level reaches the HOT mark. • ATF model: APOLLOIL ATF RED-1K • Filling quantity of ATF: up to Great Wall Motor Company Limited. GWM-PPT V2010.1 56 Improving little by little everyday Note: • When the fluid level is too low, the pump may take in air, which may cause various abnormal situation. The sucked air forms compressible bubbles in the hydraulic system, which results in unstable pressure and causes shifting delay, slipping of clutch and brake, etc. • If ATF is excessive, bubble generates as gear rotates, causing the same situation as the fluid level is low, which may accelerate the deterioration of AFT. Under the two circumstances, bubbles may result in overheating and fluid oxidation, and disturb the normal operation of valve, clutch and brake. In addition, bubbles may cause the fluid to overflow from the air vent of the drive axle, which may be mistaken for leakage. 7. Insert the dipstick steadily into the filling pipe. GWM-PPT V2010.1 57 Improving little by little everyday • Note: • When it is necessary to check the fluid level at lower temperature (20-30℃), or during the renewal of fluid, turn the dipstick to COLD position, then check the fluid level under the above HOT condition. • Use paper without ramie cotton not cloth or scrap material to wipe off the oil on the dipstick. • Make sure that the dipstick is fixed on the filling pipe. GWM-PPT V2010.1 58 Improving little by little everyday Check for fluid state Fluid state Possible reasons Measures Varnish (very sticky) Damaged or worn clutch and brake band Change ATF, and check AT or the vehicle (wiring harness, cooling pipe, etc.). Ivory or turbid Water in oil Change ATF, and check whether there is water in the oil. Mixed with metal powder Abnormally worn AT sliding members Change ATF and test the AT. GWM-PPT V2010.1 59 Improving little by little everyday 2. Renewal of 5R35 automatic transmission fluid • • Disconnect the hose connecting the transmission and oil cooler (inside the radiator) Take off the drain plug (A) at the bottom of transmission to drain ATF. GWM-PPT V2010.1 Transmission oil sump Transmission fluid outlet 60 Improving little by little everyday • Fit new gasket, and then tighten the drain plug to the specified torque. • The tightening torque is 58.83-～63.74Nm. • Add new transmission fluid via the filling pipe, and the filling amount is about 8L. • Warning: never overfill. • Remarks: check if the transmission fluid is polluted. If it is polluted, repeat steps from 2 to 5. Transmission fluid filler GWM-PPT V2010.1 61 Improving little by little everyday • Add new oil via the filling pipe. • Reconnect the hose disconnected in step 1, and put the dipstick at the original place. (Putting the dipstick at the original place means to put the dipstick into filling pipe after the dirt on it being wiped off) . • Verify ATF check steps from 3 to 7. GWM-PPT V2010.1 62 Improving little by little everyday • Drive the vehicle in urban area for 10 minutes until the fluid temperature reaches 70-80℃. Then recheck the fluid level. The level should be at the HOT position. GWM-PPT V2010.1 63 Improving little by little everyday 3. Stall test of 5R35 automatic transmission • Test procedure • Check the engine oil level and refill if necessary. • Drive the vehicle for 10min after engine warm-up to make the fluid temperature reach 70-80℃ (158-176F). Refill if necessary. GWM-PPT V2010.1 64 Improving little by little everyday • Note: at the ambient temperature of 20℃ (68℉), drive the vehicle for 10 minutes under urban traffic situation to make the fluid temperature reach 7080℃ (158-176℉). GWM-PPT V2010.1 65 Improving little by little everyday • Make sure that the parking brake is applied, and the wheel is stationary. GWM-PPT V2010.1 66 Improving little by little everyday Start the engine, depress the brake pedal, and turn the shift lever to D position. GWM-PPT V2010.1 67 • Depress the accelerator pedal gradually while stepping on the brake pedal. GWM-PPT V2010.1 68 Improving little by little everyday • Quickly read the stall speed and move your foot away the accelerator pedal. The stall speed shall be 2,500r/min at D gear. • Note: during test, the time for stepping on accelerator pedal shall be no more than 5 minutes. • Turn the gear lever to N position. • Cool AFT oil temperature. • Note: the engine should run at idle speed for at least 1 minute. GWM-PPT V2010.1 69 Improving little by little everyday Fault diagnosis Shift lever positions Expected faulty part D、M Stall test R H O ●Forward brake ● Forward one-way clutch ●1st one-way clutch ●3rd one-way clutch O H ●Front wheel brake ●High/low reverse clutch ●1st one-way clutch L L Engine and one-way clutch for hydrodynamic torque converter H H Low pipeline pressure O Check for the fastness of one-way clutch in hydrodynamic torque converter, or check it through other tests O O: Stall speed is within the specified range. H: Stall speed is higher than the specified value. L: Stall speed is lower than the specified value. GWM-PPT V2010.1 70 Improving little by little everyday 4. Pressure test of 5R35 automatic transmission pipeline Test port for FWD/B brake fluid Inspection hole for D/C clutch oil pressure Test port for LC/B brake fluid pressure Test port for F/B brake fluid pressure Pipeline pressure test port 管道压力检测端口 GWM-PPT V2010.1 71 Improving little by little everyday Test steps: • Check for the engine oil level and refill the oil if necessary. • Drive the vehicle for 10min after engine warm-up to make the AFT temperature reach 70-80℃ (158-168℉), then check the AFT level. • After the preheating of AT, take off the pipeline pressure testing plug, then mount hydraulic pressure gauge to measure. • Note: it is necessary to use the O-ring installed on hydraulic pressure testing plug during the measurement with hydraulic pressure gauge. GWM-PPT V2010.1 72 Improving little by little everyday • Make sure that the parking brake is applied and the wheels are stationary. GWM-PPT V2010.1 73 Improving little by little everyday • Start the engine, measure the pipeline pressure as the engine works at an idle speed or a stall speed. • Note: • Keep stepping on the brake pedal during the measurement. GWM-PPT V2010.1 74 Improving little by little everyday • For the measurement of pipeline pressure at stall speed, see Stall Speed Test. • After the measurement, install hydraulic testing plug, and screw it to the specified torque of 4.8-9.8N.m. GWM-PPT V2010.1 75 Improving little by little everyday Standard value for pipeline pressure of 5R35 automatic transmission Engine speed Pipeline pressure RAI gear Drive gear Idling Stall GWM-PPT V2010.1 76 Improving little by little everyday Fault diagnosis Results Possible causes Low at all gears Idling Low at particular gear High GWM-PPT V2010.1 It may be caused by faulty pressure transmission system or low output of pump, etc. Such as: ●Worn pump ●Clingy pressure regulating valve or plug, and aged spring ●Oil leakage net →oil pump→ pressure leakage in the channel of pressure regulating valve ●Low idle speed for the engine The cause may be that there is pressure leakage on relevant equipments or channels to a certain extent after the pressure is diverted by the manual valve. It may be caused by the faulty sensor or poor pressure regulating performance Such as: ●Faulty acceleration sensor ● Faulty oil temperature sensor ● Faulty pipeline pressure solenoid (clingy or blocked strainer, short-circuit when OFF) ● Clingy pressure regulating valve or plug 77 Improving little by little everyday Fault diagnosis Results Possible causes It may be caused by faulty sensor or poor pressure regulating performance Such as: Hydraulic pressure is ●Faulty acceleration sensor not higher than that ●Faulty TCM during the idling ●Faulty pipeline pressure solenoid (clingy strainer and/or short-circuit when ON) ●Clingy pressure regulating valve or plug ●Clingy control valve or blocked strainer. Idling Hydraulic pressure increases, but not within the specified range. It may be caused by faulty pressure transmission system or sensor, and poor pressure regulating performance Such as: ● Faulty acceleration sensor ● Faulty pipeline pressure solenoid (clingy and/or blocked strainer) ●The adherence of pressure regulators or pressure regulating plugs ● The adherence of control valve, the blocking of control strainer. The cause may be that there is pressure leakage on relevant equipments Low at particular gear or channels to a certain extent after the pressure is diverted by manual valve. GWM-PPT V2010.1 78 Improving little by little everyday 5. Correct traction for vehicle with 5R35 automatic transmission • If the traction is required due to fault, you are recommended to contact the authorized dealer or commercial traction service company. In order to avoid the damage of vehicle, correct lifting and traction procedures must be observed. And it is recommended to use ground jack or flat-bed trailer. GWM-PPT V2010.1 79 Improving little by little everyday When towing four-wheel-drive vehicles, it is necessary to use wheel lifting equipments and ground jack or flat-bed trailer to raise up the four wheels from the ground. GWM-PPT V2010.1 80 Improving little by little everyday • When towing two-wheel-drive vehicles, front wheels may be on the ground (without using ground jack), and the rear wheels should be raised from the ground. • Under the circumstance of using commercial tractor but not the ground jack, the tail of vehicle (not front part) must be lifted all the time. GWM-PPT V2010.1 81 Improving little by little everyday 6. Reading of fault code of 5R35 automatic transmission Connection for diagnostic apparatus Position of TCU computer CANBUS Ⅱplug GWM-PPT V2010.1 82 Improving little by little everyday Diagnostic system of Great Wall Motors GWM-PPT V2010.1 83 Improving little by little everyday Choose the version V31.00 GWM-PPT V2010.1 84 Improving little by little everyday System initialization GWM-PPT V2010.1 85 Improving little by little everyday Ending of initialization GWM-PPT V2010.1 86 Improving little by little everyday Choose K5 (N2) vehicle model GWM-PPT V2010.1 87 Improving little by little everyday Choose K5 (N2) -TCU (transmission) GWM-PPT V2010.1 88 Improving little by little everyday System shows to choose CANBUS Ⅱ plug GWM-PPT V2010.1 89 Improving little by little everyday Choose the function GWM-PPT V2010.1 90 Improving little by little everyday Data flow 1 GWM-PPT V2010.1 91 Improving little by little everyday Data flow 2 GWM-PPT V2010.1 92 Improving little by little everyday Data flow 3 GWM-PPT V2010.1 93 Improving little by little everyday Data flow 4 GWM-PPT V2010.1 94 Improving little by little everyday Motion test GWM-PPT V2010.1 95 Improving little by little everyday Review of courses Chapter 1: Knowledge on 5R35 Automatic Transmission Chapter 2: Repair & Maintenance of 5R35 Automatic Transmission GWM-PPT V2010.1 96 Improving little by little everyday GWM-PPT V2010.1 97