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Test Ar: All LEDS & Incandescent Lights Inoperative

  1. Turn ignition switch to LOCK position. Disconnect Front Electronic Module (FEM) 20-pin harness connector C201f. FEM is located behind driver's side kick panel. See Figure . Turn ignition switch to RUN position. Measure voltage between ground and FEM harness connector C201f terminal No. 1 (Orange/Yellow wire). See Figure . If battery voltage exists, go to next step. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
  2. Turn headlight switch off. Turn ignition switch to LOCK position. Disconnect Interior Auxiliary Junction Box (IAJB) 16-pin harness connector C283a. IAJB is located, behind driver's side kick panel. Measure resistance between ground and IAJB harness connector C283a terminal No. 13 (Blue/Red wire). See Fig 1 . If resistance is more than 10 k/ohms, go to next step. If resistance is 10 k/ohms or less, repair short to ground in Blue/Red wire between FEM and IAJB.
  3. Connect FEM 20-pin harness connector C201f. Turn ignition switch to RUN position. Turn headlights on. Turn panel dimmer switch to maximum position. Measure voltage between ground and IAJB harness connector C283a terminal No. 13 (Blue/Red wire). If battery voltage exists, go to next step. If battery voltage does not exist, go to step  8 .
  4. Turn ignition switch to LOCK position. Disconnect IAJB 16-pin harness connector C283d. Using a fused jumper wire, apply battery voltage to IAJB harness connector C283d terminal No. 13 (Blue wire). Instrument cluster and message center lights should illuminate. Steering wheel switches (if equipped), main light switch, panel dimmer switch, mirror switch and message center switch lights should illuminate. If all lights do not illuminate, remove jumper wire and go to next step. If all lights illuminate, remove jumper wire and go to step  7 .
  5. Disconnect joint connector No. 3 22-pin harness connector C224. Joint connector No. 3 is located, behind left side of instrument panel. Measure resistance between ground and joint connector No. 3 harness connector C224 terminal No. 13 (Blue wire). See Fig 2 . If resistance is more than 10 k/ohms, go to next step. If resistance is 10 k/ohms or less, repair short to ground in Blue wire between joint connector No. 3 and IAJB.
  6. NOTE: Deactivate air bag system. See appropriate AIR BAG RESTRAINT SYSTEMS article.
  7. Disconnect instrument cluster 22-pin harness connector C220a. Disconnect message center switch 6-pin harness connector C253. Disconnect instrument panel dimmer module harness connector C206. Disconnect headlight switch harness connector C205. Disconnect power mirror switch harness connector C204. Disconnect steering wheel switch harness connector C217. Measure resistance between ground and joint connector No. 3 harness connector C224 terminals No. 12 (Blue/Yellow wire), No. 14 (Blue/Yellow wire), No. 15 (Blue/Red wire), No. 16 (Blue/Red wire), No. 20 (Blue/Black wire) and No. 21 (Blue/Orange wire). If all resistances are more than 10 k/ohms, replace joint connector No. 3. If any resistance is 10 k/ohms or less, repair short to ground in appropriate wire.
  8. Disconnect IAJB 16-pin harness connector C283a. Using a fused jumper wire, apply battery voltage to IAJB harness connector C283a terminal No. 5 (Blue/White wire). Emergency message switch, seat heater switches, traction control disable switch, shift selector and cigarette lighter lights should illuminate. If all lights do not illuminate, repair wiring as necessary. If all lights illuminate, remove jumper wire and repair or replace IAJB.
  9. Turn ignition switch to LOCK position. Disconnect FEM 20-pin harness connector C201f. FEM is located behind driver's side kick panel. See Figure . Measure resistance in Blue/Red wire between FEM harness connector C201f terminal No. 11 and IAJB harness connector C283a terminal No. 13. See Figure and Fig 1 . If resistance is 5 ohms or less, replace FEM. If resistance is more than 5 ohms, repair open in Blue/Red wire between FEM and IAJB.
Fig 1: Identifying Interior Auxiliary Junction Box Harness Connector Terminals
G00011075Courtesy of FORD MOTOR CO.
Fig 2: Identifying Joint Connector No. 3 Harness Connector Terminals
G00011077Courtesy of FORD MOTOR CO.