Test C: Adjustable Brake Pedal Does Not Operate Correctly - Using The Memory Set Switch/Remote Transmitter

Pinpoint Test C: Adjustable Brake Pedal Does Not Operate Correctly - Using the Memory SET Switch/Remote Transmitter
Refer to Vehicle/Diagrams, Adjustable Pedal for schematic and connector information.

Normal Operation
When the desired memory position is selected using the memory SET switch or the remote transmitter, the driver door module (DDM) sends a message to the driver seat module (DSM) along the standard corporate protocol (SCP) bus indicating that a memory request has been made. The DSM sends voltage to the adjustable pedal motor along circuits 1489 (LB/BK) and 1490 (LB/OG) depending on the memory request message.

To move the pedals forward (towards the driver), voltage is sent from the DSM to the adjustable pedal motor along circuit 1489 (LB/BK). The voltage returns from the motor to the DSM along circuit 1490 (LB/OG) and is grounded through the DSM along circuit 57 (BK).

To move the pedals rearward (away from the driver), voltage is sent from the DSM to the adjustable pedal motor along circuit 1490 (LB/OG).

The voltage returns from the motor to the DSM along circuit 1489 (LB/BK) and is grounded through the DSM along circuit 57 (BK).

The DSM uses a potentiometer attached to the adjustable pedal motor to identify the current pedal position. The DSM sends a reference voltage along circuit 958 (GY/RD), through the potentiometer and back to the DSM along circuit 1491 (LB/YE).

This pinpoint test is intended to diagnose the following:
^ Wiring, terminals or connectors
^ Adjustable pedal motor
^ DSM

C1-C3:

C3 (Continued)-C4:

C5-C6:

C6 (Continued):