Skip the auto shop - Our mechanics make house calls

Q: Battery harness got damaged

asked by on

My Check Engine light is on. The diagnostic gave me error code P1684. My battery harness got damaged and I am not sure how.

A: The fault code P1684 is a code stored for b...

The fault code P1684 is a code stored for battery power being lost. Due to the amount of amperage that the vehicle electrical system and battery handle the battery harness should be repaired immediately as danger of fire or battery damage including the battery exploding can result. You may want to enlist the help of a mechanic, such as one from YourMechanic, to repair the battery harness safely and inspect the area where the damage occurred. They will be able to identify what caused the cable damage and replace the battery cable for you if needed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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!

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: What is the best fix for a catalyst system efficiency below threshold (bank 2)

Trouble code P0430 is for a catalyst on the drivers side. The sensor after the converter may be bad and not responsive enough or the catalyst itself may be bad. The catalyst should be replaced if the converter rattles, there...

Q: lights not working - 2003 Mazda Protege5

Hello. It sounds like there is some sort of short in the system. If you have had any work done on the vehicle, I would check for damaged wires in that area. If using a volt meter, check the available...

Q: Car waits a bit to start

In order for the starter to engage on this vehicle, the computer needs to disable the anti-theft system. Then the computer will signal the totally integrated power module (TIPM) to activate the starter relay, then the starter can begin to...

Related articles

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 to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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.