Commander 4WD V8-4.7L VIN N (2006)
Combination Switch: Testing and Inspection
LEFT MULTI-FUNCTION SWITCH
WARNING: TO AVOID PERSONAL INJURY OR DEATH, ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE
SUPPLEMENTAL RESTRAINT SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, AIRBAG,
OCCUPANT CLASSIFICATION SYSTEM, SEAT BELT TENSIONER, IMPACT SENSOR, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO
MINUTES FOR THE SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS
THE ONLY SURE WAY TO DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO TAKE THE PROPER
PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT.
The hard wired circuits of the left multi-function switch can be diagnosed using conventional diagnostic tools and methods. However, conventional
diagnostic methods may not prove conclusive in the diagnosis of the Steering Control Module (SCM) the Controller Area Network (CAN) data bus or
the electronic message inputs and outputs used to provide exterior lamp and lighting service or many of the electronic features of the exterior lamp and
lighting systems. The most reliable, efficient and accurate means to diagnose this component requires the use of a diagnostic scan tool.
1. Remove the left multi-function switch from the Steering Control Module (SCM).
Control Stalk Function Tests
Control Knob Function Tests Part 1
