Generic Scan Tool

OVERALL FUNCTION CHECK
Use this procedure to check the overall function of the engine coolant temperature sensor circuit. During this check, a DTC might not be confirmed.

NOTE: If both DTC P0115 (0103) and P0125 (0908) are displayed, first perform TROUBLE DIAGNOSIS FOR DTC P0115.

1) Turn ignition switch "ON".




2) Select "MODE 1" with Generic Scan Tool (GST).
3) Start engine and run it at idle speed.
4) Check that the engine coolant temperature rises to 25°C (77°F) or more. within 10 minutes. (Be careful not to overheat engine.)