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Test 20A - Right Tail Lamp Out

NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION  . For wiring diagram, see WIRING DIAGRAMS  . Perform TEST VER-1 after each repair.
  1. If left tail lamps are out, go to TEST 21A. Remove and inspect faulty right tail lamp bulb. If bulb is defective, replace bulb. If bulb is okay, go to next step.
  2. Inspect bulb socket connector. Clean and repair connections as needed. Put DRB in voltmeter mode. Measure voltage at bulb socket connector terminal No. 3 (Black/Red wire). If voltage is more than 10 volts, repair Black wire between bulb socket connector and ground for open to ground. If voltage is less than 10 volts, go to next step.
  3. Disconnect lamp outage module connector. Check, clean and repair connections as needed. Connect jumper wire between lamp outage module connector terminal No. 12 (Black/Yellow wire) and terminal No. 13 (Black/Red wire). If right side tail lamps illuminate, replace lamp outage module. If right side tail lamps do not illuminate, repair open Black/Red wire between lamp outage module connector and right bulb socket connector.