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B1157
DTC B1157: Gauge Control Module Lost Communication with MICU (MICU Message)DTC B1159: Gauge Control Module Lost Communication with MICU (DOORSW Message)
NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.
1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Wait for 6 seconds or more.
4. Check for DTCs with the HDS.
Are DTCs B1157 and/or B1159 indicated?
YES - Go to step 5.
NO - Intermittent failure. The gauge control module is OK at this time. Check for loose or poor connections.
5. Check for DTCs with the HDS.
Are DTCs B1055, B1057, B1105, B1106, and B1255 also indicated?
YES - Go to MICU input test. MICU Input Test
NO - Go to gauge control module input test. Gauge Control Module Input Test