B0807

DTC B0807 Battery Feed For Door Lock Circuit Open:

DTC B0807 Battery Feed For Door Lock Circuit Open (Part 1 Of 2):

DTC B0807 Battery Feed For Door Lock Circuit Open (Part 2 Of 2):

CIRCUIT DESCRIPTION
Pressing lock or unlock on either door lock switch sends a ground signal to the Body Control Module (BCM) through circuit 780 or 781 respectively. This action causes the BCM to supply voltage from circuit 1540 to either circuit 294 or 295 for 350 (+/- 35) ms, energizing door actuators and unlocking (except driver's door) or locking vehicle doors.

CONDITIONS FOR SETTING THE DTC
^ The BCM detects an open in circuit 1540.
^ All conditions must be present for more than 0.3 seconds.

ACTION TAKEN WHEN THE DTC SETS
The BCM stores DTC B0807 in memory.

CONDITIONS FOR CLEARING THE DTC
^ The BCM detects B+ in circuit 1540 when trying to lock or unlock the doors.
^ A history DTC will clear after 100 consecutive ignition cycles if the condition for the malfunction is no longer present.
^ Using a scan tool.

DIAGNOSTIC AIDS
^ If the DTC is a history DTC, the problem may be intermittent. Try performing the tests shown while moving wiring and connectors, this can often cause the malfunction to reappear.
^ DTC P1626 will set in the Powertrain Control Module (PCM) when the ignition switch is in the RUN position with the BCM disconnected. When BCM diagnostics and repains are completed, refer to the Engine Controls for additional information on PCM related DTCs. Powertrain Management

TEST DESCRIPTION
Numbers below refer to the step numbers on the diagnostic table.
2. Checks for a short to ground in circuits 294, 295 and 1540.
3. Checks for a short to ground in circuit 1540.
4. Checks for a short to ground in circuit 295.
5. Checks for a short to ground in circuit 294.
6. Checks for an open in circuit 1540.
7. Determines whether the malfunction is intermittent or the BCM is faulty.