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Home >> Ford >> 2005 >> F 150 2WD Pickup V6-4.2L VIN 2 >> Repair and Diagnosis >> Body and Frame >> Body Control Systems >> Testing and Inspection >> Component Tests and General Diagnostics >> Driver Seat Module >> Pinpoint Tests >> Test A: No Communication With the Driver Seat Module (DSM)
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Test A: No Communication With the Driver Seat Module (DSM)

PINPOINT TEST A: NO COMMUNICATION WITH THE DRIVER SEAT MODULE (DSM)


Test A1-A3:






Test A3 Continued:






Normal Operation
The DSM receives power through the central junction box (CJB) fuse 109 (30A) and fuse 3 (5A). From the fuses, voltage is delivered to the module through circuits 566 (DG) and 956 (OG/LG), and is grounded on circuits 875 (BK/LB) and 57 (BK).

Possible Causes
- circuit 956 (OG/LG) open
- circuit 566 (DG) open
- circuit 57 (BK) open
- circuit 875 (BK/LB) open
- DSM
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