902E

902E-CONTROL MODULE VOLTAGE HIGH (ZHZ)

For a complete wiring diagram Consult Diagrams/Electrical.

- When Monitored:
With the ignition on.

- Set Condition:
The Warm Water Auxiliary Heating 2 Control Unit detects a short to battery.





Diagnostic Test

1. CHECK FOR ACTIVE DTC

NOTE: Repair any other present fault codes before proceeding.

Turn the ignition on.
With the scan tool, read active 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. CHECK FOR SHORT TO VOLTAGE
Turn the ignition off.
Disconnect the Warm Water Auxiliary Heating 2 Control Unit harness connector.
Turn the ignition on.
Check the Warm Water Auxiliary Heating 2 Control Unit related wiring for a short to voltage.
Is there a short to voltage present?

Yes

- Repair the short to voltage.
- Perform BODY VERIFICATION TEST - VER 1. Verification Tests.

No

- Replace the Warm Water Auxiliary Heating 2 Control Unit.
- Perform BODY VERIFICATION TEST - VER 1. Verification Tests.