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NO.8 DOES NOT SHIFT TO FIFTH GEAR (5GR) [JA5AX-EL]

id050305809000

8 | Does not shift to fifth gear (5GR)
DESCRIPTION | • Vehicle does not upshift from 4GR to 5GR even though vehicle speed increased. • Vehicle does not shift to 5GR even though accelerator pedal released in D range at 60 km/h {37 mph}.
POSSIBLE CAUSE | • Basically, TCC does not operate when fail-safe is operating. Verify DTC at first. If TCC operates when driving at high speeds only, malfunction (improper adjustment) is in the D range switch circuit or TR switch circuit. Note • If the TCC or piston is stuck, inspect them. In addition, inspect the oil cooler for foreign particles which may have mixed in with the ATF. - TCC piston slipped, burned • Line pressure low • Incorrect throttle position signal • Malfunction of ECT sensor • Malfunction of VSS • Malfunction of input/turbine speed sensor • Malfunction of sensor ground - Malfunction of TFT sensor • Short or open circuit in wiring • Poor connection of connector • Malfunction of sensor - Malfunction of TR switch • Selector lever adjustment incorrect • TR switch adjustment incorrect - Malfunction of TCC solenoid valve • Short or open circuit in wiring • Poor connection of connector • Solenoid valve stuck - Malfunction of M range switch - Malfunction of torque converter - Malfunction of control valve body Note • Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted.

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | • Turn ignition switch to ON. • Does gear position indicator light indication correspond to selector lever position? | Yes | Go to next step.
No | Go to symptom troubleshooting No.27 "Gear position indicator light does not illuminate in M range" or No.28 "Gear position indicator light illuminates in D range or P, N, R positions".
2 | • Drive vehicle in D range and inspect following: - 1-2 shift up and down - 2-3 shift up and down - 3-4 shift up and down - 4-5 shift up and down • Are all shift-up and shift-down possible? | Yes | Go to next step.
No | No shift at all: • Go to symptom troubleshooting No.7 "No shifting". Abnormal shift: • Go to symptom troubleshooting No.9 "Abnormal shifting".
3 | • Stop engine. • Inspect shift solenoid A, B, or C circuit. • Are they okay? | Yes | Go to next step.
No | • Inspect for shift solenoid mechanical stuck. (See SOLENOID VALVE INSPECTION [JA5AX-EL].)
4 | • Remove torque converter. • Inspect torque converter. (See ATX Workshop Manual.) • Is torque converter okay? | Yes | • Overhaul control valve body and repair or replace any defective parts. (See ATX Workshop Manual.) - If problem remains, replace or overhaul transaxle and repair or replace any defective parts. (See AUTOMATIC TRANSAXLE AND TRANSFER REMOVAL/INSTALLATION [JA5AX-EL].) (See ATX Workshop Manual.)
No | Replace torque converter.
5 | • Verify test results. - If okay, return to diagnostic index to service any additional symptoms. - If malfunction remains, inspect related Service Informations and perform repair or diagnosis. • If vehicle repaired, troubleshooting completed. • If vehicle not repaired or additional diagnostic information not available, replace TCM.