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Checking Power & Grounds

  1. Power seats and mirrors receive power through fuse No. 2, a 40-amp maxi-fuse located in Power Distribution Center (PDC). PDC is located in engine compartment on left inner fenderwell. If power seats, mirrors, locks, rear blower and fog lamps are all inoperative check maxi-fuse and replace as necessary.
  2. If new fuse blows immediately, repair short to ground in one of the listed circuits. See the SYSTEM WIRING DIAGRAMS article in the WIRING DIAGRAMS section.
  3. If power seats are inoperative with a good maxi-fuse, check 30-amp circuit breaker located in driver's seat harness 10 inches from Black 4-pin connector.
  4. The power circuit is Red/White wire. Leaving 30-amp circuit breaker, 2 Red wires supply system power to passenger power seat switch and MSM module.
  5. If power locks, rear blower and fog lamps are all operating and both seats are inoperative, repair open in Red wire or defective 30-amp circuit breaker.
  6. Ensure Black ground wire between left cowl ground block and driver power seat switch terminal No. 1 and between left cowl ground block and MSM module terminal No. 7 have continuity.
  7. If passenger power seat is operational and driver power seat is not, check continuity of Red wire between 30-amp circuit breaker and MSM module 10-pin connector terminal No. 8. See Figure . Repair as necessary.
  8. If driver power seat remains inoperative, using DVOM, check for voltage at MSM module 21-pin connector terminal No. 11 and Driver power seat switch terminal No. 5. See Figure . This is a low current battery voltage circuit and will not light a test light. If voltage is not present, replace MSM module or repair open Red wire as necessary.
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