Inspection Procedure

CHECK UNLOCK WARNING SWITCH ASSY

Fig 1: Checking Continuity Between Terminals Of Key Unlock Warning Switch Connector
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1. Disconnect the unlock warning switch connector.
2. Check the continuity between the terminals of the key unlock warning switch connector, as shown in the illustration and table.
  Standard:
Fig 2: Key Unlock Warning Switch Terminals Continuity Chart
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1. NG: REPLACE UNLOCK WARNING SWITCH ASSY
2. OK: Go To Next Step
CHECK WIRE HARNESS (TVIP ECU <--> UNLOCK WARNING SWITCH)

Fig 3: Identifying TVIP ECU & Key Unlock Warning Switch Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Disconnect the TVIP ECU connector.
2. Check the continuity between the terminals of the TVIP ECU connector and unlock warning switch connector, as shown in the illustration and table.
  Standard:
Fig 4: TVIP ECU Connector & Key Unlock Warning Switch Connector Continuity Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR
2. OK: Go To Next Step
CHECK WIRE HARNESS (KEY UNLOCK WARNING SWITCH <--> BODY GROUND)

Fig 5: Identifying Key Unlock Warning Switch Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Check the continuity between the terminal of the unlock warning switch connector and the body ground, as shown in the illustration and table.
  Standard:
Fig 6: Key Unlock Warning Switch Connector & Body Ground Continuity Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR
2. OK: CHECK AND REPLACE TVIP ECU (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE )