Inspection Procedure
- CHECK WIRELESS DOOR LOCK FUNCTION
- Check that the wireless door lock control functions operate with a transmitter (See HOW TO PROCEED WITH TROUBLESHOOTING
).
Result
RESULT CHARTResult Proceed To Wireless door lock control functions operate normally but turn signal light answer-back does not occur A Wireless door lock control functions operate normally but wireless door lock buzzer answer-back does not occur B B: Go to step 3
A: Go to next step
- Check that the wireless door lock control functions operate with a transmitter (See HOW TO PROCEED WITH TROUBLESHOOTING
).
- CHECK HAZARD WARNING LIGHT
- Check that the turn signal lights flash continuously when the hazard warning signal switch is pressed (See REMOVAL ).
OK: Hazard warning lights flash continuously.
NG: Go to PROBLEM SYMPTOMS TABLE (LIGHTING SYSTEM) (See PROBLEM SYMPTOMS TABLE )
OK: Go to next step.
REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)
- CHECK HARNESS AND CONNECTOR (WIRELESS DOOR LOCK BUZZER CERTIFICATION ECU AND BODY GROUND)
- Disconnect the E29 ECU connector.
- Disconnect the A20 buzzer connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
TESTER CONNECTION SPECIFIED CONDITION CHARTTester Connection Condition Specified Condition A20-1 - E29-21 (BZR) Always Below 1 Ω A20-2 - Body ground A20-1 - Body ground Always 10 kΩ or higher Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: Go to next step.
- CHECK WIRELESS DOOR LOCK BUZZER (OPERATION)
- Temporarily replace the wireless door lock buzzer with a new one (See REMOVAL ).
- Check that the wireless door lock buzzer sounds by using the transmitter lock/unlock switch.
OK: Wireless door lock buzzer sounds.
NG: REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (See REMOVAL )
OK: Go to next step.
END (WIRELESS DOOR LOCK BUZZER IS DEFECTIVE)