Test D: One or More Module-Controlled Illumination Source(s) Is Inoperative

PINPOINT TEST D: ONE OR MORE MODULE-CONTROLLED ILLUMINATION SOURCE(S) IS INOPERATIVE

D1:

D1-D2:

D2 Continued:

Normal Operation
The smart junction box (SJB) sends a pulse-width modulated (PWM) voltage to the dimmable components through circuits CLN04 (BU/BN). Ground for the illumination source is supplied through circuits GD138 (BK/WH), GD133 (BK), GD151 (BK/GN) and GD145 (BK/BU).

Possible Causes
- circuit CLN04 (BU/BN) open, short to ground
- circuit GD133 (BK) open
- circuit GD138 (BK/WH) open
- circuit GD145 (BK/BU) open
- circuit GD151 (BK/GN) open
- four-wheel drive switch
- memory seat switch
- temperature controlled seats/heated windshield switch
- adjustable pedals switch
- message center
- interactive vehicle dynamics (IVD) switch
- headlamp switch
- instrument panel dimmer switch
- shifter assembly
- driver door lock control switch
- passenger door lock control switch
- SJB