B1441

DTC B1441

CIRCUIT DESCRIPTION

Correct Ignition Switch Inputs:

The body control module (BCM) is the power mode master (PMM) responsible for sending ignition switch position information on the class 2 serial data link. The BCM monitors 3 discrete inputs from the ignition switch and the engine run flag (ERF) in order to determine the power mode. The BCM communicates this power mode information to all class 2 modules on the class 2 serial data link. The table represents correct BCM power mode data.

CONDITIONS FOR RUNNING THE DTC
Battery positive voltage is 9.0-18.5 Volts.

CONDITIONS FOR SETTING THE DTC
The Ignition Off/Run/Crank circuit is an open, shorted to ground, or shorted to voltage.

CONDITIONS FOR CLEARING THE DTC
- A current DTC clears when the malfunction is no longer present for 1 second.
- A history DTC clears when the ignition is cycled 100 times, without a repeat of the malfunction.

TEST

Steps 1 - 2:

Steps 3 - 4:

Steps 5 - 6:

Steps 7 - 10:

Steps 11 - 14: