DTC Troubleshooting: B1159

DTC B1159: Gauge Control Module Lost Communication (Door Switch Message) with the Multiplex Integrated Control Unit (MICU) Clear the DTC using the HDS. Cycle the ignition switch to OFF, and then back ON. Check the DTCs by selecting the DTCs MENU (DTCs) from the HDS. Is DTC B1159 indicated?
YES | - | Go to Step 4 .
NO | - | Intermittent failure. The gauge control system is OK at this time.■
Check the DTCs by selecting the DTCs MENU (DTCs) from the HDS. Is DTC B1057 indicated?
YES | - | Go to MICU input test. ■
NO | - | Go to gauge control module input test. ■