B1155

DTC Troubleshooting: B1155, B1156, B1159, B1188

DTC B1155: Gauge Control Module Lost Communication with the MICU (Headlight Switch Message)

DTC B1156: Gauge Control Module Lost Communication with the MICU (Wiper Switch Message)

DTC B1159: Gauge Control Module Lost Communication with the MICU (DOORSW Message)

DTC B1188: Gauge Control Module Lost Communication with the MICU (RM Message)

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A. Troubleshooting - B-CAN System Diagnosis Test Mode A

1. Clear the DTCs with the HDS.

2. Turn the ignition switch to LOCK (0), and then back to ON (II).

3. Check for DTCs with the HDS.

Are DTCs B1155, B1156, B1157, B1159, B1160, and/or B1188 indicated?
YES - Go to step 4.

NO - Intermittent failure. The gauge control module is OK at this time. Check for loose or poor connections. If the connections are good, check the battery condition, Testing and Inspection and the charging system.


4. Check for DTCs with the HDS.

Are DTCs B1155, B1156, B1157, B1159, B1160, and B1188 indicated?
YES - Faulty MICU;replace the under-dash fuse/relay box. Under-Dash Fuse/Relay Box Removal and Installation

NO - Replace the gauge control module (tach). Gauge Control Module Replacement