DTC B1230 or DTC indicator F and AUTO: A Short in the Sunlight Sensor Circuit
WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.
- Clear the DTC with the HDS.
- Turn the ignition switch to LOCK (0) and then to ON (II).
- Do the self-diagnostic function with the HDS (see HOW TO USE THE SELF-DIAGNOSTIC FUNCTION WITH THE HDS ) or the climate control unit (see HOW TO USE THE SELF-DIAGNOSTIC FUNCTION WITHOUT THE HDS ).
- Check for DTCs.
Is DTC B1230 or F and AUTO indicated?
YES -Go to step 5.
NO -Intermittent failure.
- Turn the ignition switch to LOCK (0).
- Disconnect the sunlight sensor connector.
- Disconnect the climate control unit 36P connector.
- Check for continuity between body ground and climate control unit 36P connector terminals No. 1 and No. 19 individually.Fig 1: Checking Continuity Between Body Ground And Climate Control Unit 36P Connector Terminals No. 1 And No. 19
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Repair a short to body ground in the wires between the climate control unit and the sunlight sensor.
NO -Go to step 9.
- Check for continuity between climate control unit 36P connector terminals No. 1 and NO. 19.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Repair a short in the wires between the climate control unit and the sunlight sensor.
NO -Go to step 10.
- Reconnect the sunlight sensor connector.
- Reconnect the climate control unit 36P connector.
- Test the sunlight sensor (see OUTSIDE AIR TEMPERATURE SENSOR REPLACEMENT
).
Is the sunlight sensor OK?
YES -Substitute a known-good climate control unit, and recheck. If the symptom/indication goes away, replace the original climate control unit.
NO -Replace the sunlight sensor (see SUNLIGHT SENSOR REPLACEMENT ).