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Front doors will not unlock

Tiny
JTCSTMXRDR
  • MEMBER
  • 2004 TOYOTA RAV4
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 187,000 MILES
My problem is when I go to click the button to unlock the doors with the security fob it only opens back doors. It does not open front doors. And you have to manually unlock the front doors both inside and out. I am not sure what I need to check first the motor or is there an actuator? One more thing you can unlock the other doors from the inside from driver side just not passenger. Thank you for any help.
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Thursday, October 4th, 2018 AT 8:24 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
Hello,

There are four fuses (dome-gauge-acc-door) that run the system. Lets start by checking those if all okay it sounds like the passenger side ECU is out. Here is how the system work check out the wiring diagrams below. You could have a lock switch that is out so lets test through it to confirm the ECU failure.

https://www.2carpros.com/articles/how-to-check-wiring

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

Cheers, Ken
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Sunday, October 7th, 2018 AT 11:28 AM
Tiny
JTCSTMXRDR
  • MEMBER
  • 4 POSTS
Thanks for the help. I will work through this and see what fixes it. Keep you posted. Thanks Ken.
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Monday, October 8th, 2018 AT 6:31 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
Please do.
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Tuesday, October 9th, 2018 AT 10:37 AM

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