I have a weird issue happening, I noticed it happens only during and after rainy conditions.
First issue is:
- The speedometer needle goes up and down abruptly then stays down.
Second issue is:
- What's accompanied by this is the locking/unlocking the doors, the doors locking mechanism engages itself randomly even while driving.
- When I used the keyfob to unlock the doors it locks right away.
- Although when I use the key to manually unlock, it works.
- The doors lock also engages each time when I let go of the switch for the power windows.
These issue stay for some period of time and eventually returns to norm after a few days.
This generation rav4 2003 (awd, auto) tend to have ECU issues, related to transmission (hard) shifting issues, but I had that repaired already.
I have another repaired ECU as well that has had this same problem.
All this leads to conclude some electrical wiring issue/short somewhere, or indeed the problem is still at the ECU.
I checked the fuses no fuses are blown.
I already had all ground points cleaned up.
And checked for any water getting in to connectors but couldn't find anything.
Any suggestions?
First issue is:
- The speedometer needle goes up and down abruptly then stays down.
Second issue is:
- What's accompanied by this is the locking/unlocking the doors, the doors locking mechanism engages itself randomly even while driving.
- When I used the keyfob to unlock the doors it locks right away.
- Although when I use the key to manually unlock, it works.
- The doors lock also engages each time when I let go of the switch for the power windows.
These issue stay for some period of time and eventually returns to norm after a few days.
This generation rav4 2003 (awd, auto) tend to have ECU issues, related to transmission (hard) shifting issues, but I had that repaired already.
I have another repaired ECU as well that has had this same problem.
All this leads to conclude some electrical wiring issue/short somewhere, or indeed the problem is still at the ECU.
I checked the fuses no fuses are blown.
I already had all ground points cleaned up.
And checked for any water getting in to connectors but couldn't find anything.
Any suggestions?