P3101

DTC P3101 ENGINE SYSTEM MALFUNCTION

CIRCUIT DESCRIPTION

The HV ECU performs the fail safe control, when the ECM detects an error which will affect THS control.

HINT:
- When using an OBD II scan tool other than TOYOTA hand-held tester, check all the steps.
- When using TOYOTA hand-held tester, confirm the information code and check it.

Detecting Condition:

DTC P3101 - Information code 204, 205

INSPECTION PROCEDURE

If any of the above information codes is output, after confirming the DTC of the ECM, check and repair the applicable DTC. Prior to repairing it, record the DTC of the HV ECU, freeze frame data and history of operation. Then, clear the DTC and check it one more time after starting the system again ("READY" light ON).

CIRCUIT DESCRIPTION

The HV ECU detects the seizure of the engine or transmission gear and performs the fail safe control.

Detecting Condition:

DTC P3101 - Information code 238

INSPECTION PROCEDURE

If the above information code is output, investigate what has caused the revolution resistance of the transaxle and engine to become greater.
- Check the engine lubrication system and transaxle lubrication system.
- Check the engine coolant and transaxle coolant.
- Check for any breakdowns in engine itself and transaxle itself.