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DTC P0762 [FN4A-EL]

id0502a1808800

DTC P0762 | Shift solenoid C stuck ON
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DETECTION CONDITION | • When either of DTC P0731 and P0732 are not generated, and both the following conditions are satisfied. - When all conditions below are satisfied while driving in 3GR. • ATF temperature 20 °C {68 °F} or above. • Driving in D range. • Engine running. • Turbine speed within 225-4,988 rpm. • Differential gear case (output) revolution speed 35 rpm or above. • Revolution ratio of forward clutch drum revolution to differential gear case revolution below 0.863 or 1.249 or above. • Any of the following not generated: DTC P0500, P0706, P0707, P0708, P0712, P0713, P0715, P0751, P0752, P0753, P0756, P0757, P0758, P0761, P0762, P0763, P0766, P0767, P0767, P0768, P0771, P0772, P0773. - When all conditions below are satisfied while driving in 4GR. • ATF temperature 20 °C {68 °F} or above. • Driving in D range. • Engine running. • Turbine speed within 225-4,988 rpm. • Vehicle speed 50 km/h {31mph} or above. • Differential gear case (output) revolution speed 35 rpm or above. • Throttle opening angle at closed throttle position • Revolution ratio of forward clutch drum revolution to differential gear case revolution below 0.6 or 1.249 or above. • Any of the following not generated: DTC P0500, P0706, P0707, P0708, P0712, P0713, P0715, P0751, P0752, P0753, P0756, P0757, P0758, P0761, P0762, P0763, P0766, P0767, P0767, P0768, P0771, P0772, P0773. Diagnostic support note: • This is a continuous monitor (CCM). • MIL illuminates if PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM. • PENDING CODE is available if PCM detects the above malfunction condition during first drive cycle. • FREEZE FRAME DATA is available. • HOLD indicator light flashes. • DTC is stored in the PCM memory.
POSSIBLE CAUSE | • ATF level low • Deteriorated ATF • Shift solenoid C and pressure control solenoid stuck • Control valve stuck • PCM malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | VERIFY FREEZE FRAME DATA HAS BEEN RECORDED • Has FREEZE FRAME PID DATA been recorded? | Yes | Go to next step.
No | Record FREEZE FRAME PID DATA on repair order, then go to next step.
2 | VERIFY RELATED REPAIR INFORMATION AVAILABILITY • Check for related Service Bulletins availability. • Is any related repair information available? | Yes | Perform repair or diagnosis according to available repair information. • If vehicle is not repaired, go to next step.
No | Go to next step.
3 | CHECK ATF CONDITION • Turn the ignition switch off. • Check ATF condition. - Clear red: Normal - Milky: Water mixed in fluid - Reddish brown: Deteriorated ATF • Is it normal? (See Automatic Transaxle Fluid (ATF) Condition Inspection.) | Yes | Go to next step.
No | If ATF color is milky or reddish brown, replace ATF, then go to Step 5. (See AUTOMATIC TRANSAXLE FLUID (ATF) REPLACEMENT [FN4A-EL].)
4 | CHECK ATF LEVEL • Start engine. • Warm up ATX. • Is ATF level within specification? (See Automatic Transaxle Fluid (ATF) Level Inspection.) | Yes | Go to next step.
No | Adjust ATF level, then go to Step 7. (See Automatic Transaxle Fluid (ATF) Level Inspection.)
5 | INSPECT LINE PRESSURE • Start engine. • Measure line pressure. Specification D, S, L range Idle: 330-470 kPa {3.4-4.7 kgf/cm 2, 48-68 psi} Stall: 1,030-1,190 kPa {10.5-12.1 kgf/cm 2, 150-172 psi} R position Idle: 490-710 kPa {5.0-7.2 kgf/cm 2, 71-102 psi} Stall: 1,700-2,050 kPa {17.4-20.9 kgf/cm 2, 247-297 psi} • Is line pressure within specification? (See Line Pressure Test.) | Yes | Go to next step.
No | • All ranges: Replace oil pump or control valve body, then go to Step 7. • Any ranges: Replace ATX, then go to Step 7. (See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION [FN4A-EL].) (See ATX Workshop Manual FN4A-EL (9999-95-FN4A-99).)
6 | CHECK OPERATION OF EACH VALVE AND EACH SPRING • Turn the ignition switch off. • Remove control valve body. • Disassemble control valve body. • Is each valve operation normal and is return spring normal? (See CONTROL VALVE BODY REMOVAL [FN4A-EL], CONTROL VALVE BODY INSTALLATION [FN4A-EL].) (See ATX Workshop Manual FN4A-EL (9999-95-FN4A-99).) | Yes | Replace ATX, then go to next step. (See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION [FN4A-EL].) (See ATX Workshop Manual FN4A-EL (9999-95-FN4A-99).)
No | Repair or replace shift valve and return spring, then go to next step. (See CONTROL VALVE BODY REMOVAL [FN4A-EL], CONTROL VALVE BODY INSTALLATION [FN4A-EL].) (See ATX Workshop Manual FN4A-EL (9999-95-FN4A-99).)
7 | VERIFY TROUBLESHOOTING OF DTC P0762 COMPLETED • Make sure to reconnect all disconnected connectors. • Clear DTC from memory using WDS or equivalent. • Start engine. • Warm up ATX. • Drive the vehicle under the following conditions and make sure that gears shift smoothly from 1GR to 4GR. - ATF temperature: 20 °C {68 °F} or above - Drive in D range - Throttle opening angle (TP PID): 0% (4GR only) - Vehicle speed (VSS PID): 50 km/h {31 mph} or above (4GR only) • Is pending code present? | Yes | Replace PCM, then go to next step. (See PCM REMOVAL/INSTALLATION.)
No | Go to next step.
8 | VERIFY AFTER REPAIR PROCEDURE • Perform "After Repair Procedure". (See AFTER REPAIR PROCEDURE [FN4A-EL].) • Are any DTCs present? | Yes | Go to applicable DTC inspection.
No | Troubleshooting completed.