Riviera V6-231 3.8L VIN C SFI (1989)
Door Ajar Circuit
DESCRIPTION:
The BCM provides system voltage to the passenger door ajar circuit, and the passenger door ajar switch provides the single path to ground. The BCM
supplies and internally monitors the voltage level of the circuit at pin 3C12. When the passenger door ajar circuit is open the BCM will detect system
voltage, but if the passenger door ajar switch provides a path to ground (passenger 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 send the "PASSENGER DOOR AJAR" message to the CRT.
TEST CONDITIONS:
1.
Code B334 is not set.
2.
ECM UART data line is OK.
FAILURE CONDITIONS:
1.
PRNDL is OK.
2.
Engine is running.
3.
Transmission not in Park or Neutral.
4.
Passenger door ajar switch input is low.
5.
Passenger door ajar failure code already set.
6.
Passenger door ajar switch is closed.
ACTION TAKEN:
1.
Display the "PASSENGER DOOR AJAR" message on the CRT.
2.
Illuminate the "See Diagnostic Center" indicator on the IPC.
