CLUSTER WAKE UP OUTPUT HIGH
For a complete wiring diagram Refer to Section 8W.
- When Monitored:
With the ignition in the OFF position.
- Set Condition:
When the BCM receives an input from the driver door switch or an input from exterior lamp control switch. Symptoms will include: No fast chime with key in ignition or Park Lamps on and driver door open. No VF odometer display when door open. No cluster, high beam indicator, front or rear fog lamp indicator illumination.
| Possible Causes |
| (G150) INSTRUMENT CLUSTER WAKE UP SIGNAL CIRCUIT SHORT TO VOLTAGE |
| INTERMITTENT CONDITION |
| BODY CONTROL MODULE |
| INSTRUMENT CLUSTER |
Diagnostic Test
1. (G150) INSTRUMENT CLUSTER WAKE UP SIGNAL CIRCUIT SHORT TO VOLTAGE
Turn the ignition off.
Disconnect the BCM C1 harness connector.
Disconnect the Instrument Cluster harness connector.
Measure the voltage between the (G150) Instrument Cluster Wake Up Signal circuit and ground.
Is there any voltage present?
Yes
- Repair the (G150) Instrument Cluster Wake Up Signal circuit for a short to voltage.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
No
- Go To2
2. BODY CONTROL MODULE
Turn the ignition off.
Disconnect the Instrument Cluster harness connector.
Ensure that the BCM C1 harness connector is connected.
Measure the voltage between the (G150) Cluster Wake Up circuit and ground.
Is there any voltage present?
Yes
- Replace and program the Body Control Module in accordance with the Service Information.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
No
- Go To3
3. INSTRUMENT CLUSTER
Turn the ignition off.
Ensure that the Instrument Cluster and BCM C1 harness connectors are connected.
Turn the ignition on.
With the scan tool, read DTCs.
Did this DTC reset?
Yes
- Replace and configure the Instrument Cluster in accordance with the Service Information.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
No
- The condition is not present at this time. Monitor scan tool DTCs while wiggling the related wire harness. Refer to any Technical Service Bulletins (TSB) that may apply. Visually inspect the related wiring harness and connector terminals.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)