2010 Cadillac Truck SRX FWD V6-3.0L Page 505

2010 Cadillac Truck SRX FWD V6-3.0L Page 505

Circuit Description

The seat memory control module monitors the position of the seat motors by using hall effect position sensors which are an internal part of each

motor. The module supplies each sensor with a 12 V reference circuit and a low side signal circuit. During seat motor operation, the hall effect

position sensor provides a determined number of pulse signals for every revolution of the motor shaft. The scan tool displays these pulse signals as

counts that range from 0 - 65,535. The module counts the feedback pulses from each sensor to determine seat position and end of travel limits for

each of the seat motors. High scan tool count values indicate forward or upward seat positions while low count values indicate rearward or

downward seat positions.

Conditions for Running the DTC

* DTC B1325 must not be present.

* Module battery voltage must be between 9 - 16 V.

Conditions for Setting the DTC

The seat memory control module does not detect position sensor movement or pulse signals while the adjuster motor is active. The following

conditions will set this DTC:

B1825 01, B2355 01, B2365 01, or B2375 01

The seat memory control module detects a short to battery on the sensor signal circuit.

B1825 06, B2355 06, B2365 06, or B2375 06

The seat memory control module detects a short to ground or an open on the sensor signal circuit.

Action Taken When the DTC Sets

The seat memory control module disables the memory recall and easy exit/entry action commands of the motor monitored by the sensor. The motor

will respond to manual positioning commands.

Conditions for Clearing the DTC

* The current DTC clears when the fault is no longer present and the power mode changes to OFF then back to ACC or RUN.

* The history DTC will clear after 40 consecutive fault-free ignition cycles have occurred.

Reference Information

Schematic Reference

Driver Seat Schematics (See: Body and Frame/Seats/Diagrams/Electrical Diagrams/Driver Seat Schematics)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)

Description and Operation

Memory Seats Description and Operation (See: Body and Frame/Seats/Description and Operation/Memory Seats)

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)