Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Trunk Opener Request Switch Check
- CHECK TRUNK OPENER REQUEST SWITCH
With CONSULT
Check trunk opener request switch ("BD/TR REQ SW") in "DATA MONITOR" mode.
Monitor item Condition BD/TR REQ SW Trunk opener request switch is pressed: ON Trunk opener request switch is released: OFF Without CONSULT
- Turn ignition switch OFF.
- Check voltage between Intelligent Key unit connector M42 terminal 29 and ground.
Connector Terminals Condition Voltage (V) (Approx.) (+) (-) M42 29 Ground Trunk opener request switch is pressed 0 Trunk opener request switch is released 5 OK or NG
OK: Trunk opener request switch is OK.
NG: GO TO 2.
- CHECK TRUNK OPENER REQUEST SWITCH OPERATION
- Turn ignition switch OFF.
- Disconnect trunk opener request switch connector.
- Check continuity between trunk opener request switch terminals 1 and 2.
Component Terminals Condition Continuity Trunk opener request switch 1 2 Trunk opener request switch is pressed Yes Trunk opener request switch is released No OK or NG
OK: GO TO 3.
NG: Replace trunk opener request switch.
- CHECK TRUNK OPENER REQUEST SWITCH GROUND CIRCUIT
Check continuity between trunk opener request switch harness connector T5 terminal 2 and ground.
2 - Ground: Continuity should exist .
OK or NG
OK: GO TO 4.
NG: Repair or replace trunk opener request switch ground circuit.
- CHECK TRUNK OPENER REQUEST SWITCH CIRCUIT
- Disconnect Intelligent Key unit connector.
- Check continuity between Intelligent Key unit harness connector M42 (A) terminal 29 and trunk opener request switch harness connector T5 (B) terminal 1.
29 - 1: Continuity should exist .
- Check continuity between Intelligent Key unit harness connector M42 (A) terminal 29 and ground.
29 - Ground: Continuity should not exist .
OK or NG
OK: GO TO 5.
NG: Repair or replace harness between Intelligent Key unit and trunk opener request switch.
- CHECK TRUNK OPENER REQUEST SWITCH SIGNAL
- Connect Intelligent Key Unit connector.
- Check voltage between trunk opener request switch harness connector T5 terminal 1 and ground.
1 - Ground: Battery voltage
OK or NG
OK: Check condition of harness and connector.
NG: Replace Intelligent Key unit. Refer to , "REMOVAL AND INSTALLATION OF INTELLIGENT KEY UNIT ".
NO RELATED
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.