Mazdaspeed6 L4-2.3L Turbo (2006)
Steering Angle Sensor: All Technical Service Bulletins
Steering - TCS/DSC Warning Light ON with DTC C1956
Bulletin No: 09-004/08
Last Issued: 01/22/2008
Subject:
TCS / DSC WARNING LIGHT ON WITH DTC C1956
APPLICABLE MODEL(S)/VINs
2006-2007 Mazdaspeed6 vehicles with VINs lower than JM1GG****7*110516 (produced before June 6, 2007)
DESCRIPTION
Some vehicles may experience a TCS/DSC warning light illumination with DTC C1956 (Steering Angle Sensor) stored in memory.
Depending on the size variation in the production of related combination switch parts on the steering shaft, steering angle sensor parts may come in
contact with each other causing debris to attach to the steering angle sensor. The debris can cause abnormal signals resulting in a TCS/DSC warning light
illumination.
The steering angle sensor assembly in the combination switch body has been modified to avoid interference. Customers having this concern should have
their vehicle repaired using the following repair procedure.
REPAIR PROCEDURE
1.
Verify customer concern.
2.
Record customer's preset radio stations, then disconnect negative battery cable.
3.
Replace combination switch body with a modified part according to Workshop Manual (section 09-18 COMBINATION SWITCH
REMOVAL/INSTALLATION).
4.
Reconnect negative battery cable, then re-enter customer's preset radio stations.
5.
Proceed to "Power Window Initialization Procedure" to restore "anti-pinch" and auto open/close" window features before returning vehicle to
customer or dealer inventory.
POWER WINDOW INITIALIZATION PROCEDURE
1.
Turn ignition to ON position.
2.
From driver's seat ensure window lockout switch is NOT depressed.
3.
Press window switch down to fully open door window.
