B1339

Diagnostic Chart:

Schematic:

CIRCUIT DESCRIPTION
The battery feed circuit, from the INADV POWER BUS/RAP fuse to the BCM, provides power for the interior lamps.

CONDITIONS FOR RUNNING THE DTC
The voltage on the interior lamps feed circuit from the BCM must be between 9-16 volts.

CONDITIONS FOR SETTING THE DTC
The BCM detects that the circuit from the INADV POWER BUS/RAP fuse to the BCM is less than 1 volt for longer than 0.3 seconds.

ACTION TAKEN WHEN THE DTC SETS
The BCM stores DTC B1339 in memory.

CONDITIONS FOR CLEARING THE DTC
^ A current DTC B1339 will clear if the BCM no longer detects the fault.
^ A history DTC B1339 will clear after 100 consecutive ignition cycles if the condition for the malfunction is no longer present.
^ Use a scan tool in order to clear the DTC.

DIAGNOSTIC AIDS
^ If the DTC B1339 is a history DTC, the fault may be intermittent. Refer to Testing for Intermittent and Poor Connections in Diagrams.
^ The following conditions may cause an intermittent malfunction to occur:
- An intermittent open in the circuit from the INADV POWER BUS/RAP fuse to the BCM.
- The BCM is intermittently open internally.

TEST DESCRIPTION
The number(s) below refer to the step number(s) on the diagnostic table.
3. This step checks for an open in a battery feed circuit.