Test Description

The numbers below refer to the step numbers on the diagnostic table.

1. 2. Determines whether the short to ground in the key cylinder unlock circuit is current or intermittent.
2. 3. Determines whether the short to ground is in the door lock cylinder switches or the door lock key switch unlock signal circuit.
3. 4. Determines whether the LF or RF door lock cylinder switch is shorted to ground.
   Fig 1: DTC B3064 Or B3069 Diagnosis

   Courtesy of GENERAL MOTORS CORP.