DTC U0073: F-CAN Malfunction (Bus-Off)

1. Turn the ignition switch ON (II).

1. Clear the DTC with the HDS.

1. Check for Temporary DTCs or DTCs with the HDS.

Is DTC U0073 indicated?

YES | - | Go to Step 4 .
NO | - | Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the gauge control module, the VSA modulator-control unit (equip model only), and the ECM.■

1. Check for Body Electrical DTCs with the HDS.

Is DTC B1168, B1169 and/or B1178 indicated?

YES | - | Go to Step 5 .
NO | - | Do the gauge control module input test. ■

1. Turn the ignition switch OFF.

1. Remove the gauge control module.

1. Disconnect the gauge assembly 36P connector.

1. Disconnect the VSA modulator-control unit 47P connector (equip model only).

1. Disconnect ECM connector No. 2 (58P).

1. Check for continuity between ECM connector No. 2 terminals No. 47, No. 48 and body ground individually.

| *: | CANL line

Is there continuity?

YES | - | Repair short in the wire between the gauge control module, and the VSA modulator-control unit, and ECM connector No. 2 terminal No. 47 (No. 48) * , go to Step 15 .
NO | - | Go to Step 11 .