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.
Test F, Trunk Unlock
This test checks keyless entry module, trunk release solenoid and related circuits.
- With ignition on, press trunk release button in glove box. If trunk unlocks, go to step 2). If not, go to step 3). If trunk is always unlocked, go to step 5).
- Disconnect Gray module connector and check continuity between pin No. 7 and trunk release solenoid. If continuity exists, replace keyless entry module and repeat QUICK TEST. If no continuity exists, repair circuit No. 84 (Purple/Yellow wire) and repeat QUICK TEST. If continuity exists, replace keyless entry module and repeat QUICK TEST.
- Check operation of trunk release solenoid using jumper wires and battery. If solenoid is okay, go to step 4). If not, replace solenoid and repeat QUICK TEST.
- Examine keyless entry system circuit breaker No. 12. If circuit breaker is okay, repair open or short in circuit No. 84 (Purple/Yellow wire). Repeat QUICK TEST. If circuit breaker is defective, replace breaker and repeat QUICK TEST.
- Disconnect Gray module connector. If trunk locks, replace keyless entry module and repeat QUICK TEST. If trunk does not lock, go to step 6).
- Disconnect Gray module connector and glove box switch. If trunk locks, replace glove box switch and repeat QUICK TEST. If trunk does not lock, repair short to battery in circuit No. 84 (Purple/Yellow wire) and repeat QUICK TEST.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
No obligation. See pricing before you book.