Need help!!
04-02-23, 09:08 PM
#1
1st Gear
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Join Date: Apr 2023
Location: oregon
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Need help!!
Just bought a 2002 ls430. The interior lights don't work; and none of the accessory functions such as power locks, windows and wipers operate unless the engine is running.
04-03-23, 01:50 PM
#2
Advanced
that is an interesting problem. i suggest disconnect the battery, and pull out and test every single fuse and relay from your electrical box as a start. you can buy a relay tester on amazon
04-04-23, 04:11 AM
#3
Instructor
Sounds like a duff battery to me. Since the LS430 uses a CANBUS, low battery voltage can cause all kinds of weird effects.
Once you start the engine the alternator will be supplying 13.8volts so the CANBUS will work as it should.
Fit a new battery even if yours seems to be OK and starts the engine.
If it's not that, then there is a problem with some of the relays.
Once you start the engine the alternator will be supplying 13.8volts so the CANBUS will work as it should.
Fit a new battery even if yours seems to be OK and starts the engine.
If it's not that, then there is a problem with some of the relays.
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