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TROUBLESHOOTING CVT 23A-30 STEP 4. Retest the system. Q: Is the check result normal? YES : The inspection is complete. NO : Replace the CVT assembly. Code P0882: Malfunction of power supply system (Low)
Code P0883: Malfunction of power supply system (high) DIAGNOSTIC FUNCTION CVT-ECU monitors if power supply system is normal JUDGEMENT CRITERIA • <P0882> : When the engine speed is 450 r/min or more and secondary pressure is above 0.3 • <P0883>: When the engine speed is 450 r/min or more, the secondary pressure is above 0.3 MPa PROBABLE CAUSES • Damaged wiring harness and connectors • Malfunction of CVT-ECU DIAGNOSTIC PROCEDURE STEP 1. Check for short circuit in power supply Q: Is the check result normal? YES : Go to Step 2. NO : Repair the connector(s) or wiring harness. STEP 2. Check for short circuit in VIG1, VIG2 line Q: Is the check result normal? YES : Go to Step 3. NO : Repair the connector(s) or wiring harness. STEP 3. Check for open circuit in GND1, GND2 Q: Is the check result normal? YES : Go to Step 4. NO : Repair the wiring harness. STEP 4. Symptom recheck after erasing Q: Is the check result normal? YES : Intermittent malfunction NO : Replace CVT-ECU. Code No. P1637: Malfunction of Memory Backup DIAGNOSTIC FUNCTION CVT-ECU checks the consistency between EEP- JUDGEMENT CRITERIA When the ignition switch is turned to the ON position, PROBABLE CAUSES • Damaged wiring harness and connectors • Malfunction of CVT-ECU (Faulty EEPROM) DIAGNOSTIC PROCEDURE STEP 1. Check if diagnosis code P1637 is erased Q: Is the check result normal? YES : This diagnosis code will be set by disconnecting the battery. If the diagnosis NO : Go to Step 2. |