B2890

DTC B2890

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 Descriptor
DTC B2890 4B
- Tilt and Telescope Motor Circuit Calibration Not Learned




Circuit Description

The memory seat module MSM learns tilt/telescope soft stops approximately 1.3 cm (0.5 in) from the mechanical ends of travel. The system uses soft stops to prevent wear on the system by ensuring that the steering column movement stops before it reaches its mechanical end of travel in any direction. The soft stops are initially programmed at the factory. The stop positions may be reprogrammed, which is necessary any time the MSM is replaced.


Conditions for Running the DTC

The ignition ON.


Conditions for Setting the DTC

The soft stops have not been learned.


Action Taken When the DTC Sets

* The tilt and telescope motors will be deactivated.
* Memory recall functions will be disabled.



Conditions for Clearing the DTC

* A current DTC will clear when the soft stops have been learned.
* A history DTC will clear after 100 ignition cycles.



Reference Information
Schematic Reference

Tilt/Telescoping Steering Column Schematics (Tilt/Telescoping Steering Column Schematics)
Connector End View Reference

Component Connector End Views (Connector Views)
Description and Operation

Steering Wheel and Column Description and Operation (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

Programming and Relearning (Programming and Relearning) for Scan Tool Information


Circuit/System Verification

1. Ignition ON, perform the scan tool Learn Column Soft Stops procedure. Refer to Telescoping Steering Column Calibration (Programming and Relearning)
2. Operate the vehicle within the Conditions for Running and Setting. Verify DTC B2890 does not reset.

• If the DTC resets, replace the MSM.




Repair Instructions

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


Programming and Relearning (Programming and Relearning) for MSM replacement, setup, and programming