B3064

CIRCUIT DESCRIPTION
The LF and RF door lock cylinder switches provide a ground input to the body control module (BCM) when either of the switches are turned to the unlock position. This input is needed for the optional content theft deterrent system when the keyless entry feature does not unlock the doors.

CONDITIONS FOR SETTING THE DTC
The BCM detects the door lock key switch signal circuit as continuously active for greater than 60 seconds.

ACTION TAKEN WHEN THE DTC SETS
^ The BCM stores DTC B3069 in memory.
^ The BCM will disable the input and all operations of the input until the fault no longer exists.

CONDITIONS FOR CLEARING THE DTC
^ The BCM no longer detects the short to ground for greater than 60 seconds.
^ 100 consecutive ignition cycles have been recorded without the DTC being detected.

DIAGNOSTIC AIDS
^ If the DTC B3069 is a history DTC, the fault may be intermittent. Refer to Testing for Intermittent and Poor Connections in Diagnostic Aids.
^ The following conditions may cause an intermittent malfunction to occur:
- An intermittent short to ground in the key unlock input circuit
- The key cylinder switch is intermittently shorted to ground internally
- The BCM is intermittently shorted to ground internally

TEST DESCRIPTION

Steps 1-10:

The numbers below refer to the step numbers on the diagnostic table.
2. Determines whether the short to ground in the key cylinder unlock circuit is current or intermittent.
3. Determines whether the short to ground is in the door lock cylinder switches or the door lock key switch unlock signal circuit.
4. Determines whether the LF or RF door lock cylinder switch is shorted to ground.