Q: Dodge Grand Caravan 3.3 L engine I'm getting the codes p0123 p0118 p1478 p1193 and p0509 it is cranking but it will not start

asked by on March 12, 2018

Got the codes p0123 p0118 p1478 p1193 and p0509. I know very little about vehicles. My car will crank but it will not start I've replaced the coil all the spark plugs the coolant temperature sensor and I've been told that the next on the list is the camshaft sensor or the crankshaft sensor
My car has an automatic transmission.

All the codes are for too high of voltage from sensors and indicate a computer reference voltage of 5 volts are too high or there is a short in wiring. You will need to have the computer codes pinpoint tests done to isolate cause of high voltage. You may have a charging system overvoltage problem.

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

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

My rear passenger tire blew out earlier today and tore off some wiring under the car. Replaced wiring but no fuel goes to engine?

To determine if the fuel pump is disconnected, turn the key to the "on" (not start) position and listen for the in tank fuel pump momentarily running (the pump should make a brief "whirring" noise and then stop). If you...

When vehilcle gets to 60mph or more it sputters / (small backfires) in the exhaust along with increased valve clatter, heating up.

It sounds like the engine is getting starved for fuel above 60 mph. I would first try and test for any codes in computer and then if no codes then check fuel pressure to see if it is normal. If...

Back wheels locked up

Hi there. When back wheels lock up an issue with the brakes arises. This issue is usually your rear brakes not being adjusted correctly. Also, this can be caused by a jammed parking brake. i would suggest having a mechanic,...

Related articles

A Buyer’s Guide to the 2012 Dodge Ram
While While Chrysler has decided to give Ram its very own division, it seems impossible not to think of the Ram 1500 as a Dodge. After all, you’ll still buy your 2012 Ram at a Dodge dealer, and it remains...
A Buyer’s Guide to the 2010 Dodge Viper
2010 2010 was the last production year for the Dodge Viper before it took an extended leave of absence from the automaker’s lineup. It would debut once more in 2013. The 2010 Dodge Viper is a two-seat roadster (convertible) and...
The Best Used Cars to Buy If You're Towing a Boat
If If you’re towing a boat, the vehicle that you buy is largely going to depend on the size and weight of your boat plus trailer. Most cars, realistically, aren’t cut out for the job. We recommend a pickup truck...