Test B: Low Beams Inoperative
WARNING: This page is about a different car, the 2002 Lincoln Blackwood and 2002 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
- Turn ignition switch to LOCK position. Place multifunction switch in low beam position. Remove central junction box fuses No. 26 and 28 (both 10-amp). Central junction box is located under left side of instrument panel. Turn headlights on. Measure voltage between ground and input side of central junction box fuses No. 26 and 28. On Blackwood, go to step 4. If battery voltage exists at both fuses and vehicle is equipped with Daytime Running Lights (DRL), go to next step. If battery voltage does not exist at input side of either fuse, go to TEST D: ONE LOW BEAM HEADLIGHT INOPERATIVE . If battery voltage exists at both fuses and vehicle is not equipped with DRL, go to step 4.
- Remove DRL relay No. 2 from DRL relay block. See Figure. Measure voltage between ground and DRL relay No. 2 harness connector terminal No. 4 (Red/Yellow wire). See Fig 1. If battery voltage exists, go to next step. If battery voltage does not exist, go to step 4.
- Test DRL relay No. 2. See MICRO ISO RELAY under COMPONENT TESTS. If DRL relay No. 2 is defective, replace relay. If DRL relay No. 2 is okay, repair Red/Black wire between DRL relay No. 2 and central junction box. See WIRING DIAGRAMS .
- Disconnect multifunction switch 7-pin harness connector C202b. Test multifunction switch. See MULTIFUNCTION SWITCH under COMPONENT TESTS. If multifunction switch is defective, replace multifunction switch. If multifunction switch is okay, repair Red/Black wire as necessary. See WIRING DIAGRAMS .