9000 - 9999: 9207

9207-REAR HEATER COOLANT VALVE POSITION SENSOR CIRCUIT HIGH

For a complete wiring diagram Consult Diagrams/Electrical.

- When Monitored:
Whenever the module is awake.

- Set Condition:
When the Rear Heater Coolant Valve Position Sensor Ground circuit is shorted to voltage.





Diagnostic Test

1. TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
With the scan tool, record and erase all HVAC DTC's.
Operate the HVAC system.
Wait 30 seconds.
With the scan tool, read all HVAC DTC's.
Does the scan tool display this DTC as active?

Yes

- Go To 2

No

- The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary.
- Perform BODY VERIFICATION TEST - VER 1.Verification Tests

2. REAR HEATER COOLANT VALVE POSITION SENSOR CIRCUIT SHORTED TO VOLTAGE
Turn the ignition off.
Disconnect the HVAC harness connectors.
Disconnect the Rear Heater Coolant Valve Position Sensor harness connector.
Turn the ignition on.
Measure the voltage of the Rear Heater Coolant Valve Position Sensor circuit.
Is there any voltage present?

Yes

- Repair the Rear Heater Coolant Valve Position Sensor circuit for a short to voltage.
- Perform BODY VERIFICATION TEST - VER 1. Verification Tests.

No

- Go to 3

3. REAR HEATER COOLANT VALVE POSITION SENSOR CIRCUIT OPEN
Turn the ignition off.
Measure the resistance of the Rear Heater Coolant Valve Position Sensor circuit.
Does the ohm meter read open circuit?

Yes

- Repair the Rear Heater Coolant Valve Position Sensor circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1. Verification Tests.

No

- Go To 4

4. REAR HEATER COOLANT VALVE POSITION SENSOR GROUND CIRCUIT OPEN
Turn the ignition off.
Measure the resistance of the Rear Heater Coolant Valve Position Sensor Ground circuit.
Does the ohm meter read open circuit?

Yes

- Repair the Rear Heater Coolant Valve Position Sensor Ground circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1. Verification Tests.

No

- Replace the A/C Heater Control.
- Perform BODY VERIFICATION TEST - VER 1.Verification Tests