B1369

DTC B1369

CIRCUIT DESCRIPTION
The body control module (BCM) uses the ignition 0, ignition 1, and ignition 3 inputs to determine the power mode of the vehicle. The BCM may store a DTC if it detects an invalid combination of ignition input signals. If the BCM senses that the ignition 0 input is inactive when ignition 3 is active and the engine is running, DTC B1369 sets.

DTC DESCRIPTOR
This diagnostic procedure supports the following DTC:
DTC B1369 Device Ignition 0 (UNLOCK, ON, and START) Circuit Open

CONDITIONS FOR RUNNING THE DTC
The engine has been running for 20 seconds.

CONDITIONS FOR SETTING THE DTC
The ignition 0 input is inactive.

ACTION TAKEN WHEN THE DTC SETS
- Multiple indicators illuminate on the instrument panel cluster (IPC).
- The vehicle will not start.

CONDITIONS FOR CLEARING THE DTC
- A current DTC B1369 will clear when the ignition switch is cycled and the malfunction is no longer present.
- A history DTC clears when the ignition is cycled 100 times without a repeat of the malfunction.

DIAGNOSTIC AIDS
If the DTC is a history DTC, the problem may be intermittent. Perform the tests shown while wiggling the wiring and connectors. This can often cause the malfunction to appear.

TEST DESCRIPTION

Steps 1-13:

Steps 14-15:

The numbers listed below refer to the step numbers on the diagnostic table.
4. This step determines if ignition 0 is shorted to ground.
5. This step determines if the BCM is internally shorted.
6. This step determines if the IPC is internally shorted.
7. This step determines if a voltage supply is present from the battery to the fuse.