Q: Electronics not working

asked by on

I own a 2008 Scion xD and changed the water pump and alternator. After I was done putting everything back together I had no power steering, tail lights, door electronics, radio, and a few more things didn’t work. I think it might be a computer issue, because when I checked every fuse they were all good. An auto parts store tried a diagnostic tool on my car and found no readings. Do you have any idea what the problem could be?

Looking at the wiring diagrams, I see no relationship from a circuit standpoint meaning that power supply at the fuse to the circuit ground among these various electrical systems is not working. This means that the problem will most likely be somewhere in the power distribution circuit to the fuses.

All of the fusible links to the fuse panels should be checked and system voltage verified at each fuse of the non operational systems. Ensure no part of the engine harness was pinched during the alternator installation and that all connectors to the the alternator have been connected.

You may want to enlist the help of a mechanic, such as one from YourMechanic, who will be able to diagnose the source of the supply voltage loss and repair the issue to restore proper operation to the vehicle’s electrical system.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Electronics not working

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: U0121 can abs brake unit all dash lights on stalls in reverse

ABS control unit failures are pretty common on these cars, and cause several warning lights to illuminate when they fail, as well as set faults in almost every control module in the car. Based on the information provided, it's very...

Q: Dome light will not come on, but floor lights do - 1995 Nissan 300ZX

I hate not being able to help you with this. This is a very Nissan specific issue you are having. As I was reading your question, my initial thought was the door switch, but you said other lights are being...

Q: How do I program a spare key?

Your truck can be programmed with up to 8 spare keys. To program a spare key yourself, you need two previously programmed keys. From there, to program a spare key. Insert the first coded key into the ignition and...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.