Diagnosis System

DIAGNOSIS SYSTEM




- The HV control ECU has a self-diagnosis system by which malfunction in the computer itself or in THS components is detected and the Hybrid vehicle warning light in the multi-information display are lighted up.

HINT: Master warning light comes on when THS fails and it blinks when in inspection mode.





- To check the Diagnostic Trouble Codes (DTC), connect the hand-held tester to the Data Link Connector 3 (DLC3) on the vehicle. The TOYOTA handheld tester also enables you to erase the DTC and check freeze frame data and various forms of THS data.

- Freeze frame data:
As the freeze frame data records the driving condition when a malfunction is detected, when troubleshooting, it is useful for determining whether the vehicle was running, braked, stopped or reversed.