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Home >> Honda >> 2002 >> Insight Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 90 (Climate Control) >> DTC Troubleshooting >> DTC B1205: Climate Control Unit Lost Communication with Gauge Control Module (VSP/NE message): DTC B1206: Climate Control Unit Lost Communication with Gauge Control Module (ENGTEMP message): DTC B1207: Climate Control Unit Lost Communication with Gauge Control Module (ILLUMI message)
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DTC B1205: Climate Control Unit Lost Communication with Gauge Control Module (VSP/NE message): DTC B1206: Climate Control Unit Lost Communication with Gauge Control Module (ENGTEMP message): DTC B1207: Climate Control Unit Lost Communication with Gauge Control Module (ILLUMI message)

WARNING: This page is about a different car, the 2006 Honda Odyssey and 2005 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.
  1. Push the AUTO button.

    Does the climate control turn on? 

    1. YES  - Go to step 2.
    2. NO  - Go to climate control unit power and ground circuits troubleshooting (see CLIMATE CONTROL UNIT POWER AND GROUND CIRCUIT TROUBLESHOOTING  ).
  2. Turn the ignition switch OFF then ON.
  3. Turn the climate control system on and operate several functions (A/C ON/OFF, air mix and blend door operations, temperature settings etc.).
  4. Check for DTCs using the HDS.

    Is DTC indicated? 

    1. YES  -
      • DTC B1205 indicated: go to step 5.
      • DTC B1206 or B1207 indicated: Go to step  6.
    2. NO  - Intermittent failure, the gauge control module and climate control unit are OK at this time.
  5. Check for DTCs using the HDS.

    Is DTC B1060 indicated? 

    1. YES  - Perform the gauge control module self test procedure (see SELF-DIAGNOSTIC FUNCTION ).
    2. NO  - The climate control unit is faulty, replace the climate control unit.
  6. Disconnect the climate control unit 30P connector.
  7. Remove the gauge control module (see GAUGE CONTROL MODULE REPLACEMENT ).
  8. Check for continuity between the No. 7 terminal of the climate control unit 30P connector and the No. 25 terminal of the gauge control module 30P connector.
    Fig 1: Checking Continuity Between No. 7 Terminal Of Climate Control Unit 30P Connector And No. 25 Terminal Of Gauge Control Module 30P Connector
    G03706474Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    1. YES  - Check for loose wire or poor connections at the climate control unit 30P connector and at the gauge control module 30P connector. If the connections are good, substitute a known-good climate control unit and/or gauge control module, and recheck. If the symptom/indication goes away, replace the original climate control unit and/or gauge control module.
    2. NO  - Repair open in the wire between the climate control unit and the gauge control module.
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