Skip the auto shop - Our mechanics make house calls

Q: Tried all possible ways of checking to see where the problem exist... can't find it...it probably a short but the D light blinks

asked by on

Changed the solenoid with used part then the light went away...then came back so I cleaned the entire solenoid screens...then fluid...then it went away...for a while...then came back ...but whats the weird thing is I played with the key switch and it went away... For a while...then again...so I checked the relay for the Key switch then changed it out and it went away for a little bit...but it came back on...the lights started flashing and inside I was told it was the alternator so I changed it now the lights don't blink ...or flash...but the blinking D light still exists...please help me find the issue...with a electrical short...

My car has 155349 miles.
My car has an automatic transmission.

A: Hello and thank you for contacting Your Mec...

Hello and thank you for contacting Your Mechanic. The drive light (D light) is coming on from the transmission range sensor. The sensor on the transmission tells the computer what gear the transmission is currently in. When the sensor fails, the D light will flash or an engine light will come on with a code. I recommend replacing the transmission range sensor. If you need assistance with troubleshooting your wiring, then seek out a professional, preferably a professional from YourMechanic to help you with your electrical issue.

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・Save up to 30%

Get a quote

What others are asking

Q: Grinding during shifting from third into fourth gear and reverse

Hello. There are some common issues with this car that will cause this. Most of the time, changing the oil in the transmission will help. If the fluid does not fix it, then it can be a failing clutch, as...

Q: Upside down light and exclamation warning came on

I believe the light you are referring to is your TPMS (tire pressure monitoring system) Light. The symbol is intended to look like a tire with an exclamation point where the air goes inside the tire. This light comes...

Q: Gas in manifold, 1977 Chevy Nova

Hey there, thanks for writing in about your 1977 Chevy Nova 250. If you are flooding the engine from a carburetor problem, then you most likely have a needle and seat or float not adjusted properly. You should have the...

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...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
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.