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Test D: Horizontal Movement Inoperative

NOTE: Perform all voltage and resistance tests using a Digital Volt-Ohm Meter (DVOM) with a minimum 10-megohm input impedance, unless stated otherwise in test procedure. Use ohmmeter to isolate wiring harness shorts or opens.
  1. Disconnect horizontal power seat motor 2-pin harness connector C362. See Figure. Rear horizontal power seat motor is located under driver's seat. See Figure. Measure resistance between ground and horizontal power seat motor harness connector C362 terminal No. 1 (Yellow/White wire). Also measure resistance between ground and horizontal power seat motor harness connector C362 terminal No. 2 (Red/White wire). If either resistance is more than 5 ohms, go to next step. If both resistances are 5 ohms or less, go to step  3.
  2. Disconnect power seat control switch 8-pin harness connector C360. Measure resistance between horizontal power seat motor harness connector C362 terminal No. 2 and power seat control switch harness connector C360 terminal No. 3 (Red/White wire). See Figure and Figure . Also measure resistance between horizontal power seat motor harness connector C362 terminal No. 1 and power seat control switch harness connector C360 terminal No. 8 (Yellow/White wire). 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 more than 5 ohms, repair open in appropriate wire between horizontal power seat height motor and power seat control switch. For POWER SEAT system circuit identification, see WIRING DIAGRAMS . After repair, test system for normal operation.
  3. Disconnect power seat control switch harness connector C360. Figure. Measure resistance between ground and horizontal power seat motor harness connector C362 terminal No. 2 (Red/White wire). See Figure. Also measure resistance between ground and horizontal power seat motor harness connector C362 terminal No. 1 (Yellow/White wire). If both resistances are more than 10 k/ohms, go to next step. If either resistance is 10 k/ohms or less, repair short circuit in appropriate wire between horizontal power seat motor and power seat control switch. For POWER SEAT system circuit identification, see WIRING DIAGRAMS . After repair, test system for normal operation.
  4. Connect power seat control switch harness connector C360. While pressing power seat control switch to rearward position, measure voltage between ground and horizontal power seat motor harness connector C362 terminal No. 2 (Red/White wire). See Figure. If battery voltage exists, go to next step. If battery voltage does not exist, replace power seat control switch. See POWER SEAT CONTROL SWITCH  under REMOVAL & INSTALLATION. For POWER SEAT system circuit identification, see WIRING DIAGRAMS . After repair, test system for normal operation.
  5. While pressing power seat control switch to forward position, measure voltage between ground and horizontal power seat motor harness connector C362 terminal No. 1 (Yellow/White wire). See Figure. If battery voltage exists, replace seat track assembly. See SEAT TRACK under REMOVAL & INSTALLATION. If battery voltage does not exist, replace power seat control switch. See POWER SEAT CONTROL SWITCH  under REMOVAL & INSTALLATION. For POWER SEAT system circuit identification, see WIRING DIAGRAMS . After repair, test system for normal operation.
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