Circuit/System Testing

WARNING: This page is about a different car, the 2008 Suzuki Swift +, 2008 Pontiac Wave, and 2008 Chevrolet Aveo. However, it is still accessible from the selected car via links, so may be relevant.

If any other indicators are inoperative, refer to Symptoms - Displays and Gages .
Ignition OFF, disconnect the ECM harness connector.
- MR 140 controller terminal K64
- MT 34 controller terminal C49
Ignition ON, connect a 3A fused jumper wire between the MIL control circuit terminal C49 and ground. The MIL should illuminate.
- If the MIL does not illuminate, test the MIL control circuit for an open/high resistance. If the circuit tests normal, replace the driver information center (DIC)/clock.

If the fuse opens, repair the MIL control circuit for a short to voltage.

If the MIL illuminates, inspect for a poor connection or replace the control module.