Auto transaxle failure results are outputs as diagnosic codes by TCM.
In case of auto transaxle failure with locked in 3 rd gear,(AT control relay off) engine malfuntion indicator lamp is displayed by CAN communication between ECM and TCM in order to notify the driver.
If the auto transaxle generates threshold value, the ECM judged this as a fault and DTC is set.
Item | Detecting Condition | Possible Cause |
DTC Strategy | ● TCM check | ● Faulty auto transaxle ● Faulty ECM |
Enable Conditions | ● Engine run | |
Threshold Value | ● Auto transaxle failure with locked in 3rd gear | |
Diagnostic Time | ● 0.5 sec. | |
MIL Fuel Limit Fuel Cut EGR Off | ● Yes ● No ● No ● No |
Connect scantool to Data Link Connector(DLC).
Warm up the engine to normal operating temperature.
Monitor that DTC P1529 is retrieved on scantool.
Is the DTC P1529 is retrieved on scantool ?
▶ This is problem with automatic transaxle. Go to Automatic transaxle troubleshooting procedure.
▶ Fault is intermittent caused by poor contact in the ECM’s connector or was repaired and ECM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "Verification of Vehicle Repair" procedure.
After a repair, it is essential to verify that the fault has been corrected.
Connect scan tool and select "Diagnostic Trouble Codes(DTCs)" mode and then clear DTC.
Operate the vehicle within DTC Enable conditions in General information.
Are any DTCs present ?
Go to the applicable troubleshooting procedure.
System is performing to specification at this time.
