B1339
CIRCUIT DESCRIPTIONThe BCM monitors the condition of the load B+ supply circuits. When the BCM has 9-16 volts from the CLSTR/BCM fuse, the BCM tests to verify voltage and grounds are present for the BCM outputs.
The battery feed circuit, from the HTD SEAT fuse, provides power for the following items:
^ Heated seats
^ RAP Relay coil
^ Rear Defogger Relay coil
The battery feed circuit, from the DR LK fuse to the BCM, provides power for the following items:
^ Door locks
^ Trunk release motor
CONDITIONS FOR RUNNING THE DTC
The voltage on the battery feed circuit, from the CLSTR/BCM fuse to the BCM must be between 9-16 volts.
CONDITIONS FOR SETTING THE DTC
The BCM must detect:
^ the B+ supply circuit for load and RAP functions is less than 1 volt
^ the B+ supply circuit for the lock and trunk release functions is less than 1 volt
^ the above conditions last for more than 300 milliseconds
ACTION TAKEN WHEN THE DTC SETS
^ The lock and release functions may not operate.
^ The defrost functions for the rear window and the exterior mirrors may not operate.
^ The heated seats may not operate.
^ The BCM stores DTC B1339 in memory.
CONDITIONS FOR CLEARING THE DTC
^ A current DTC clears when the malfunction is no longer present.
^ A history DTC clears when the module ignition cycle counter reaches the reset threshold, without a repeat of the malfunction.
TEST
