Q: How do I find the part number on a wiring harness?

asked by on

Need to know which wiring harness to order because it wrapped around my driveshaft and popped out
My car has an automatic transmission.

Most wiring harnesses will have identifying part numbers in different places on the harness. The number will be on a piece of tape wrapped around the harness. If you cannot find any, then you will have to identify it by what it is connected to and the colors of the wires. This way it can be isolated and identified. There are only a few different harnesses near the driveshaft if it was the back one in a 2-wheel drive truck. If it was a front drive shaft, then you have many possibilities. You can also narrow it down if you have a Check Engine or ABS Light on. If you want to have this looked at first, a certified technician, such as one from YourMechanic, inspect the electrical wiring and replace the wiring with the correct harness.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. How do I find the part number on a wiring harness?

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: Back lights do not work

The fuses keep blowing out due to a higher than normal amperage draw on the lighting circuit. This is likely due to an electrical short. The wiring will need to be traced to identify where the short is taking place...

Q: Clicking that changes as speed changes, play in the driveshaft

It sounds like you have problems with the driveshaft U-joints being bad. Have a mechanic replace the U-joints and inspect the driveshaft for any damages that may require the driveshaft to need to be replaced. If you have excessive play...

Q: Q: How does eps work in a 2013 Dodge ram 1500? I replaced rack and pinion and still don't have power steering?

Hello. This system works with several inputs including vehicle speed and the steering angle sensor. If you are not getting any power assist then the system needs to be scanned for codes and the inputs checked to see what is...

Related articles

P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.