Galant L4-2.4L (4G69) (2004)
1. Disconnect multi-center display unit (middle-grade type) connector C-05.
2. Turn the ignition switch to the "ON" position.
3. Diagnose CAN bus lines, and check if the MUT-III screen is as shown in the illustration.
4. Turn the ignition switch to the "LOCK" (OFF) position.
5. Connect the multi-center display unit (middle-grade type) connector C-05.
Q: Does the MUT-III screen correspond to the illustration?
YES: If the MUT-III screen corresponds to the illustration, go to Step 21 .
NO: If the MUT-III screen does not correspond to the illustration, go to Step 22.
STEP 21. Check the CAN bus lines between joint connector (3) and the multi-center display unit (middle-grade type). Measure the resistance
between joint connector (3) C-02 and multi-center display unit (middle-grade type) connector C-05.
CAUTION: A digital multimeter should be used. For details Service Precautions/Vehicle Damage Warnings.
CAUTION: The test wiring harness should be used. For details Service Precautions/Vehicle Damage Warnings.