Rear Blend Pot Circuit Open (Active)

Test 1 - 2:

Test 3 - 5:

Test 6:

SYMPTOM
REAR BLEND POT CIRCUIT OPEN (ACTIVE) - MTC

WHEN MONITORED
With the ignition on.

SET CONDITION
This DTC Will set if the A/C - Heater Control Module sees voltage above 4.88 volts on the Rear Temperature Feedback Signal circuit.

POSSIBLE CAUSES
- 5 volt supply circuit shorted to voltage
- Check rear temperature feedback signal circuit voltage
- Rear temperature feedback signal circuit open
- A/C - heater control module
- 5 volt supply circuit shorted to rear temperature feedback signal circuit
- Rear temperature return circuit open
- Rear blend potentiometer
- A/C - heater control module