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Test 29C - All BRAKELIGHTS Out

NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION  . For appropriate wiring diagram, see WIRING DIAGRAMS  at end of article.
  1. Turn ignition off. Using DRB-II in ohmmeter mode, check resistance on terminal No. 4 (Pink/Dark Blue wire) of brakelight switch 6-pin connector (on brake pedal bracket). If resistance is less than 5 ohms, repair short to ground in Pink/Dark Blue wire and replace fuse No. 2 in fuse block. See Figure . Perform VERIFICATION PROCEDURE VER-1. If resistance is more than 5 ohms, disconnect light outage module 14-pin connector. See Figure .
  2. Check connector condition, and clean or repair connector as necessary. Remove center-high mounted brakelight bulbs. Disconnect multifunction switch 24-pin connector. See Figure . Check connector condition, and clean or repair connector as necessary. Check resistance on terminal No. 3 (White/Tan wire) of brakelight switch 6-pin connector.
  3. If resistance is less than 5 ohms, repair short to ground in White/Tan wire and replace fuse No. 2 in fuse block. Perform VERIFICATION PROCEDURE VER-1.
  4. If resistance is more than 5 ohms, check resistance on terminal No. 8 (Brown/Red wire) of light outage module 14-pin connector. If resistance is less than 5 ohms, repair short to ground in Brown/Red wire and replace fuse No. 2 in fuse block. Perform VERIFICATION PROCEDURE VER-1. If resistance is more than 5 ohms, check resistance on terminal No. 2 (Dark Green/Red wire) of light outage module 14-pin connector.
  5. If resistance is less than 5 ohms, repair short to ground in Dark Green/Red wire and replace fuse No. 2 in fuse block. Perform VERIFICATION PROCEDURE VER-1. If resistance is more than 5 ohms, remove and inspect all brakelight bulbs. Replace as necessary. If bulbs are okay, check resistance on terminal No. 3 (Dark Green/White wire) of light outage module 14-pin connector.
  6. If resistance is less than 5 ohms, repair short to ground in Dark Green/White wire and replace fuse No. 2 in fuse block. Perform VERIFICATION PROCEDURE VER-1. If resistance is more than 5 ohms, check resistance on terminal No. 1 (Dark Green wire) of light outage module 14-pin connector. If resistance is less than 5 ohms, repair short to ground in Dark Green wire and replace fuse No. 2 in fuse block. Perform VERIFICATION PROCEDURE VER-1.
  7. If resistance is more than 5 ohms, check resistance on terminal No. 9 (Brown wire) of light outage module 14-pin connector. If resistance is less than 5 ohms, repair short to ground in Brown wire and replace fuse No. 2 in fuse block. Perform VERIFICATION PROCEDURE VER-1. If resistance is more than 5 ohms, check resistance on terminal No. 10 (Brown/White wire) of light outage module 14-pin connector.
  8. If resistance is less than 5 ohms, repair short to ground in Brown/White wire and replace fuse No. 2 in fuse block. Perform VERIFICATION PROCEDURE VER-1. If resistance is more than 5 ohms, reconnect all connectors, modules and switches.
  9. Reinstall all brakelight bulbs. Replace fuse No. 2. Start engine and depress brake pedal. Inspect fuse No. 2. If fuse is blown, replace light outage module. Perform VERIFICATION PROCEDURE VER-1. If fuse is okay, test is complete. Perform VERIFICATION PROCEDURE VER-1.
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