LEMON Manuals: Even more car manuals for everyone
Home >> Mercury >> 2000 >> Cougar 2.5 L, Standard >> Repair and Diagnosis >> Body & Frame >> Power Seats >> System Tests >> Test E: Seat Does Not Move Horizontally/Vertically

Test E: Seat Does Not Move Horizontally/Vertically

NOTE: This test only applies to vehicles with 8-way power seats.
  1. Turn ignition switch to OFF position. Operate seat forward and rearward, using power seat control switch. If seat moves forward and rearward smoothly and completely, go to next step. If seat does not move forward and rearward smoothly and completely, go to step  5 .
  2. Operate backrest movement using power seat control switch. If backrest moves forward and rearward smoothly and completely, go to next step. If backrest does not move forward and rearward smoothly and completely, go to step  7 .
  3. Disconnect seat height motor harness connector. Measure voltage between Yellow/Black wire and White/Black wire terminals at seat height motor harness connector while operating power seat control switch to seat UP and DOWN positions. If battery voltage does not exist with opposite polarity, go to next step. If battery voltage exists with opposite polarity, replace seat height motor assembly.
  4. Disconnect power seat control switch harness connector. Measure resistance of Yellow/Black wire between power seat control switch harness connector and seat height motor harness connector. Also, measure resistance of White/Black wire between power seat control switch harness connector and seat height motor harness connector. If both resistance readings are 5 ohms or less, replace power seat control switch. See POWER SEAT CONTROL SWITCH  under REMOVAL & INSTALLATION. If either resistance reading is greater than 5 ohms, repair open in appropriate wire. See WIRING DIAGRAMS  .
  5. Disconnect forward/rearward motor harness connector. Measure voltage between Yellow/Green wire and White/Green wire terminals at forward/rearward motor harness connector while operating power seat control switch to seat FORWARD and REARWARD positions. If battery voltage does not exist with opposite polarity, go to next step. If battery voltage exists with opposite polarity, replace seat forward/rearward motor assembly.
  6. Disconnect power seat control switch harness connector. Measure resistance of Yellow/Green wire between power seat control switch harness connector and seat forward/rearward motor harness connector. Also, measure resistance of White/Black wire between power seat control switch harness connector and seat forward/rearward motor harness connector. If both resistance readings are 5 ohms or less, replace power seat control switch. See POWER SEAT CONTROL SWITCH  under REMOVAL & INSTALLATION. If either resistance reading is greater than 5 ohms, repair open in appropriate wire. See WIRING DIAGRAMS  .
  7. Disconnect backrest motor harness connector. Measure voltage between Yellow/Red wire and White/Red wire terminals at backrest motor harness connector while operating power seat control switch to backrest FORWARD and REARWARD positions. If battery voltage does not exist with opposite polarity, go to next step. If battery voltage exists with opposite polarity, replace seat backrest motor assembly.
  8. Disconnect power seat control switch harness connector. Measure resistance of Yellow/Red wire between power seat control switch harness connector and seat backrest motor harness connector. Also, measure resistance of White/Red wire between power seat control switch harness connector and seat backrest motor harness connector. If both resistance readings are 5 ohms or less, replace power seat control switch. See POWER SEAT CONTROL SWITCH  under REMOVAL & INSTALLATION. If either resistance reading is greater than 5 ohms, repair open in appropriate wire. See WIRING DIAGRAMS  .
scientia non olet · About LEMON Manuals