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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSTOYOTA2001HIGHLANDER 2WD L4-2.4L (2AZ-FE)REPAIR AND DIAGNOSISBODY AND FRAMELOCKSPOWER LOCKSTESTING AND INSPECTIONSYMPTOM RELATED DIAGNOSTIC PROCEDURESKEY CONFINEMENT PREVENTION FUNCTION DOES NOT WORK PROPERLY
2001 Toyota Highlander 2WD L4-2.4L (2AZ-FE)
Key Confinement Prevention Function Does Not Work Properly
2001 Toyota Highlander 2WD L4-2.4L (2AZ-FE)SECTION Key Confinement Prevention Function Does Not Work Properly
Key Confinement Prevention Function Does Not Work Properly (Manual Operation and Interlocked With Key Are Active)
CIRCUIT DESCRIPTION
MPX body ECU senses, by the unlock warning switch, that the key is in the key cylinder. Because of this, the MPX body ECU will unlock all the doors immediately after locking them if a door has been locked while the key is in the key cylinder.
INSPECTION PROCEDURE
CIRCUIT DESCRIPTION
MPX body ECU senses, by the unlock warning switch, that the key is in the key cylinder. Because of this, the MPX body ECU will unlock all the doors immediately after locking them if a door has been locked while the key is in the key cylinder.
Steps 1 - 3:
Steps 4 - 6:
INSPECTION PROCEDURE
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra 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.