Operation CHARM: Car repair manuals for everyone.

Lamps (CCD)

The cluster via CCD messages controls the following lamps. They are actuated during the self-test procedure.
ABS lamp
Brake Warning
Low Fuel Warning-Internally Controlled by the
Cluster not CCD
Airbag
Upshift (if equipped)
Check Engine
Check Gauges
Cruise Control Lamp
Trans Temp
O/D Off (if equipped)
Water in Fuel
Maintenance Required (5.9 Heavy Duty Only)

NOTE: THE SEAT BELT AND LOW WASHER SWITCH AND BRAKE WARNING LAMP ARE HARDWIRED TO THE CLUSTER. THE CLUSTER THEN DECIDES IF THE LAMP SHOULD BE ILLUMINATED.