DTC B1205: Climate Control Unit Lost Communication with the Gauge Control Module (VSP/NE messages); DTC B1206: Climate Control Unit Lost Communication with the Gauge Control Module (ECT messages); DTC B1207: Climate Control Unit Lost Communication with the Gauge Control Module (ILLUMI messages)
- Turn the ignition switch ON (II).
- Push the AUTO button.
Does the climate control turn on?
YES - Go to step 2.
NO - Go to CLIMATE CONTROL POWER AND GROUND CIRCUIT TROUBLESHOOTING .
- Clear the DTCs using the HDS.
- Turn the ignition switch OFF, and then ON (II).
- Turn the climate control system on and operate several functions (A/C on/off, air mix and blend door operations, temperature settings etc.).
- Check the DTCs by selecting the DTCs MENU (DTCs) from the HDS.
Is DTC B1205, B1206 and/or B1207 indicated?
YES - Go to step 7.
NO - Intermittent failure, the gauge control module and audio-HVAC display panel are OK at this time.
- Check the DTCs by selecting the DTCs MENU (DTCs) from the HDS.
Is DTC B1008, B1060 and/or B1061 indicated?
YES - Do the gauge control module self-diagnostic function (see SELF-DIAGNOSTIC FUNCTION ).
NO - Go to step 8.
- Turn the ignition switch OFF.
- Disconnect audio-HVAC display panel connector B (16P).
- Disconnect the under-dash fuse/relay box connector N (45P) from the fuse/relay box.
- Check for continuity between the No. 22 terminal of under-dash fuse/relay box connector N (45P) and the No. 14 terminal of audio-HVAC display panel connector B (16P).Fig 1: Checking Continuity Between Under-Dash Fuse/Relay Box Connector N (45P) And Audio-HVAC Display Panel Connector B (16P)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES - The gauge control module and/or climate control unit faulty. Substitute one component at a time and recheck. Replace the component that eliminates the DTC/symptom.
NO - Repair open in the wire between the gauge control module and the audio-HVAC display panel.