Riviera V6-231 3.8L VIN L SFI (1991)
Door Ajar Circuit
DESCRIPTION:
The BCM provides system voltage to the driver door ajar circuit, and the door ajar switch provides the single path to ground. The BCM supplies and
internally monitors the voltage level of the circuit at pin 2B4/3D14. When the door ajar circuit is open the BCM will detect system voltage, but if the
door ajar switch provides a path to ground (door open), the BCM will detect the circuit has been grounded. Once the BCM has determined that all of the
failure conditions have been met, it will instruct the IPC to display the "DOOR AJAR" light.
TEST CONDITIONS:
1.
Code B334 is not set.
2.
PCM UART data line is OK.
FAILURE CONDITIONS:
1.
PRNDL is OK.
2.
Engine is running.
3.
Transmission not in Park or Neutral.
4.
Door ajar switch input is low.
5.
Door ajar failure code already set.
6.
Door ajar switch is closed.
ACTION TAKEN:
1.
Display the "DOOR AJAR" lamp on the IPC.
