Electrically Heated Systems

Tests 1 - 2:

Test 3:

SYMPTOM
DEFOGGER RELAY CONTROL CIRCUIT SHORTED TO BATTERY

WHEN MONITORED
With the Ignition on and the Rear Window Defogger switch depressed.

SET CONDITION
This DTC will set when the A/C Heater Control Module senses excessive current on the Rear Window Defogger Relay Control circuit.

POSSIBLE CAUSES
- Check for HVAC DTC's
- Rear window defogger relay shorted to battery
- Rear window defogger relay control shorted to battery
- A/C heater control module