Auxiliary Heater (ZHZ)

9016-BLOWER MOTOR CIRCUIT OPEN (ZHZ)

For a complete wiring diagram Refer to the Wiring Information Electrical Diagrams.

- When Monitored:
Whenever the module is awake.

- Set Condition:
When the Glow Pin circuit is open.





1. TEST FOR INTERMITTENT CONDITION
1. With the scan tool, record and erase DTC's
2. Turn the ignition on and wait 30 seconds.
3. Operate the Blower Motor.
4. With the scan tool, read 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. BLOWER MOTOR CIRCUIT OPEN
1. Turn the ignition off.
2. Disconnect the Blower Motor harness connector.
3. Disconnect the A/C Heater Control harness connectors.
4. Measure the resistance of the Blower Motor circuit.

Does the ohm meter read open circuit?

Yes

- Repair the Blower Motor circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1. Verification Tests.

No

- Go To 3

3. BLOWER MOTOR GROUND CIRCUIT OPEN
1. Turn the ignition off.
2. Measure the resistance of the Blower Motor Ground circuit.

Does the ohm meter read open circuit?

Yes

- Repair the Blower Motor 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