DTC Troubleshooting: B1230 (F)
  1. Check for continuity between the climate control unit 32P connector terminals No. 15 and No. 24.
Is there continuity?
YES -
Repair short in the wires between the climate control unit and the sunlight sensor.■
NO -
Go to Step 10 .
  1. Reconnect the sunlight sensor 2P connector.
  1. Reconnect the climate control unit 32P connector.
  1. Test the sunlight sensor.
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. ■