B2760

DTC B2755 or B2760

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides an overview of each diagnostic category.

DTC Descriptors
DTC B2755
- Memory 1 Select Switch Circuit

DTC B2760
- Memory 2 Select Switch Circuit

Diagnostic Fault Information





Circuit/System Description

A ground signal is sent to the memory seat module when the Driver 1 or Driver 2 switch is pressed. When the Exit switch is pressed a ground signal is sent over both signal circuits. The memory seat module (MSM) then commands the driver seat to move in response to the switch inputs.

Conditions for Running the DTC

* DTC B1327 must not be present.
* Battery voltage must be between 9-16 volts.

Conditions for Setting the DTC

The DTCs will set if a memory recall switch is active for 30 seconds or more.

Actions Taken When the DTC Sets

All memory recall functions are disabled.

Conditions for Clearing the DTCs

* The condition responsible for setting the DTC no longer exists.
* A history DTC will clear once 50 consecutive malfunction-free ignition cycles have occurred.

Reference Information
Schematic Reference

Driver Seat Schematics (Driver Seat Schematics)
Connector End View Reference

Component Connector End Views (Connector Views)
Description and Operation

Memory Seats Description and Operation (Memory Seats Description and Operation)
Electrical Information Reference

* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)

Scan Tool Reference

Control Module References (Programming and Relearning)for scan tool information

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the memory seat switch.
2. Ignition OFF, test for less than 5 ohms of resistance between the ground circuit terminal C and ground.

• If greater than the specified range, test the ground circuit for an open/high resistance.

3. Ignition ON, with a scan tool verify the Memory Switch parameter displays Inactive.

• If not the specified value, test the appropriate switch signal circuit for a short to ground. If the circuit tests normal, replace the MSM.

4. If all circuits test normal, replace the memory seat switch.

Repair Instructions

Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.

* Driver Seat Adjuster Memory Switch Replacement (Service and Repair)
* Control Module References (Programming and Relearning)for MSM replacement, setup, and programming