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Test No. 2: Anti-Theft Indicator Circuit

NOTE: If LEXUS scan tool is available, start test from step  1. If this scan tool is not available, start test from step  2.
  1. Connect a jumper wire between DLC1 connector terminals E1 and Tc. See Figure. Using scan tool, operate anti-theft indicator in ACTIVE TEST. If anti-theft indicator does not operate, go to next step. If anti-theft indicator operates, go to step  3.
  2. Check anti-theft indicator. See ANTI-THEFT INDICATOR  under COMPONENT TESTS. Replace anti-theft indicator as necessary. Retest system operation. If anti-theft indicator is okay, go to next step.
  3. Check circuits for faults between anti-theft indicator, body control ECU No. 1 and ground. See WIRING DIAGRAMS . Repair or replace as necessary. If circuits are okay, perform TEST NO. 4: DRIVER'S DOOR COURTESY LIGHT & COURTESY SWITCH CIRCUIT .