B1836

B1836-DRIVER DOOR UNLOCK CONTROL CIRCUIT HIGH - CLUSTER

B1836-Driver Door Unlock Control Circuit High - Cluster:

WHEN MONITORED
Continuously

SET CONDITION
When the Cluster senses a high condition on the (P1) Driver Door Unlock Relay Control circuit for over 10 seconds, this code will set.

POSSIBLE CAUSES
- (P1) driver door unlock relay control circuit short to battery
- Junction block
- Instrument cluster

DIAGNOSTIC TEST

1. TEST FOR INTERMITTENT CONDITION
With the scan tool, record and erase DTC's
Operate the door locks several times.
Cycle the ignition from on to off.
Turn the ignition on.
With the scan tool, read DTC's.

Q: Does the scan tool display B1836-DRIVER DOOR UNLOCK CONTROL CIRCUIT HIGH?

YES: Go To 2
NO: The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

2. DOOR LOCK RELAY SHORTED TO BATTERY






NOTE: Ensure the windows are down before proceeding.

Turn the ignition off.
Lock the driver door.
Disconnect the Cluster C2 connector.
Momentarily connect a jumper wire between the (P1) Driver Door Unlock Relay Control circuit and the (Z905) Ground circuit in the Cluster C2 connector.

Q: Did the driver door unlock?

YES: Replace the Instrument Cluster.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Go To 3

3. (P1) DRIVER DOOR UNLOCK RELAY CONTROL CIRCUIT SHORTED TO BATTERY




Disconnect the Junction Block C2 connector (on top of junction block).
Turn the ignition on.
Measure the voltage between ground and the (P1) Driver Door Unlock Relay Control circuit in the Cluster C2 connector.

Q: Is there any voltage present?

YES: Repair the (P1) Driver Door Unlock Relay Control circuit for a short to voltage.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Replace the Junction Block.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test