DTC 2703: Aircon Diag
NOTE:
- Check the vehicle 12 volt battery condition first .
- This audio DTC sets when Connection NG is indicated in the Aircon diagnosis (the A/C icon is red in the System Links).
- Check for B-CAN DTCs and resolve them before troubleshooting.
- Before you troubleshoot, make sure to follow the General Troubleshooting Information - Refer to: How to Troubleshoot the Audio SystemAudio System Self-Diagnostic Function .
- Check the connectors for poor connections or loose terminals.
- 1. Problem verification:
1. Clear the hard error codes - Refer to: How to Troubleshoot the Audio SystemAudio System Self-Diagnostic Function .
2. Turn the vehicle to the OFF (LOCK) mode then the ON mode.
3. Check for hard error codes - Refer to: How to Troubleshoot the Audio SystemAudio System Self-Diagnostic Function .
Is DTC 2703 indicated?
YES
The failure is duplicated, go to step 2.
NO
Intermittent failure, the system is OK at this time.
- 2. Open wire check (B-CAN_H line, B-CAN_L line):
1. Turn the vehicle to the OFF (LOCK) mode.
2. Disconnect the following connectors.
Audio unit connector C (20P) Climate control unit 32P connector 3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Audio unit connector C (20P): disconnected Climate control unit 32P connector: disconnected Test point 1 Audio unit connector C (20P) No. 13 - Refer to: Audio Unit Connector for Inputs and Outputs(With Display Audio)Audio Unit Connector for Inputs and Outputs(With Normal Audio) Test point 2 Climate control unit 32P connector No. 16 Test point 1 Audio unit connector C (20P) No. 3 - Refer to: Audio Unit Connector for Inputs and Outputs(With Display Audio)Audio Unit Connector for Inputs and Outputs(With Normal Audio) Test point 2 Climate control unit 32P connector No. 15 Is there continuity?
YES
Replace the climate control unit .
NO
Repair an open in the wire(s) between the audio unit and the climate control unit.
NOTE:
- Check the vehicle 12 volt battery condition first .
- This navigation DTC sets when Connection NG is indicated in the Aircon diagnosis (the A/C icon is red in the System Links).
- Before you troubleshoot, make sure to follow the General Troubleshooting Information .
- Check for B-CAN DTCs and resolve them before troubleshooting.
- Check any official Honda service website for more service information about the navigation system.
- Check the connectors for poor connections or loose terminals.
- 1. Problem verification:
1. Clear the hard error codes .
2. Turn the vehicle to the OFF (LOCK) mode then the ON mode.
3. Check for hard error codes .
Is DTC 2703 indicated?
YES
The failure is duplicated, go to step 2.
NO
Intermittent failure, the system is OK at this time.
- 2. Open wire check (B-CAN_H line, B-CAN_L line):
1. Turn the vehicle to the OFF (LOCK) mode.
2. Disconnect the following connectors.
Audio-navigation unit connector C (20P) Climate control unit 32P connector 3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Audio-navigation unit connector C (20P): disconnected Climate control unit 32P connector: disconnected Test point 1 Audio-navigation unit connector C (20P) No. 13 Test point 2 Climate control unit 32P connector No. 16 Test point 1 Audio-navigation unit connector C (20P) No. 3 Test point 2 Climate control unit 32P connector No. 15 Is there continuity?
YES
Replace the climate control unit .
NO
Repair an open in the wire(s) between the audio-navigation unit and the climate control unit.