I just checked the truck after getting home from lets "say a long trip" 7800 miles now i have some trouble codes. Need Help. i retreived the p-codes from switching the ign. on and off 3 times. i retreived the c-codes from pushing the trip set and turning the key on.


P-CODES: 0720

0480 Cooling Fan 1 Control Circuit/Open (Low Speed Fan Relay)?

0573 Brake Switch 1 High



C-CODES: 67 07

ac 04



can anyone help with these??? what to look for, fix, tear out, throw away?

 

You have a lot of electrical gremlins. What mods or work has been done on the truck lately?

The C codes are:
67 is "all door unlock circuit shorted to ground or voltage" and it was first set 7 ignition cycles ago.

AC is "ABS message not received" and was set 4 ignition cycles ago.

Did you hit some big puddles? I'm kinda wondering if you got some water in one or more of the electrical connectors and caused some temporary glitches.

Do your door locks work OK?

Is your check engine light off?

Is your ABS light off?

If the answer is Yes to all of the above then I'd vote that it was a temporary glitch.

 

just the mods listed in the header.

just normal highway rain

door locks work fine, no check engine light, and no ABS light


I hope it was just a glitch.


thanks handymantim