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Home >> Lexus >> 1998 >> LX 470 >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Anti-Theft System >> System Tests >> Test No. 13

Test No. 13

  1. Check Hood Courtesy Switch

    Check hood courtesy switch operation. See HOOD COURTESY SWITCH  under COMPONENT TESTS. If hood courtesy switch operates properly, go to next step. If hood courtesy switch is defective, replace hood courtesy switch.

  2. Check Hood Courtesy Switch Wiring

    Check for defective connectors and wire between anti-theft system Electronic Control Unit (ECU) and hood courtesy switch, and defective connectors and White/Black wire between body ground and hood courtesy switch. See WIRING DIAGRAMS . Anti-theft system ECU is located near passenger's side of instrument panel, behind glove box and uses a 12-pin electrical connector and a 22-pin electrical connector. See Figure.
  3. If connectors and wiring are okay, replace anti-theft system ECU. See ANTI-THEFT SYSTEM ECU  under REMOVAL & INSTALLATION. If connectors or wiring are defective, repair as necessary.
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