ehh got some codes
 

here they are
P1652 J1850 Communication Bus
and P0480 witch is the fan
How do i cure this problem?
thanks
Nick

If yer not over heating I would just clear them and see if they come back :humm:

P0480 = Fan clutch
Possible Causes:
FAN CLUTCH
WIRE HARNESS DAMAGED
OPEN FAN CLUTCH (K160) DRIVER CIRCUIT
(K160) DRIVER CIRCUIT SHORTED TO (K690) RETURN CIRCUIT
(K160) DRIVER CIRCUIT SHORTED TO BATTERY NEGATIVE
INTERMITTENT CONDITION
ECM

P1652 = J1850 Short to ground
Possible Causes:
ECM
(D25) J1850 SHORTED
COMMUNICATION


So it's possible the ECM is bad. Still under warranty??

No warranty... i cleared the codes and havent seen nothin yet, ill see 2mrw if it pops up again, No CEL light just the code when i do the key cycle. if it does, ill go through your post bill. Thanks guys
Nick

Sounds like a small electrical gremlin. If it was the ECM, CEL would be on all the time, along with a funky running truck. Code popped up, but cleared the CEL itself. So what ever happened, it fixed itself. Just for stored codes now is all.

ok well just getting the p0480 code still, cleared it and it stayed off a few days. then checked the codes again and it poped up. Ill look for harness to see if the wires were cut.

I do have another problem as well, my speedo is sticking. could it be dirty inside? looks clean but maybe the last owner was a smoker and the gunk is affecting the needle. any ideas?

It's sealed pretty tight. Only thing I can think of is a faulty ECM.

Updates??

sorry been really busy, havent checked the harness yet. i will tomorrow tho

Updates??

Please update.

srry been working the xmas tree lot from morning to late night, i unplugged it and cleaned it out and still have it. but no CEL, just when i do the key trick. IDK it doesnt really bother me but would like to know why the hell its on and why my LAMP OUT light is on and has been covered with black tape inside the glass, im thinking it shorted out from the 5th wheel harness connection he hooked up.

What year truck is this on?? 06's don't have the lamp out light option.

04

Fix the harness connection and see if that helps the lamp out light. If not, check all the lamps, inside and out.

Please update.

Hey bill, i will soon as i get time, ill try to tackle it today, weather is a lot warmer today.
Ill update asap.
THanks
Nick

---AutoMerged DoublePost---

ok it was the fifth wheel harness. he hardwired it into the brake lights, something was loose, no more light. but know im in the garage tinkering around with other codes i found. (yeaaahhh:dang:) ill post up if i have problems.
Nick

---AutoMerged DoublePost---

ok just cleared the codes and everything went away. (hopefully for good) but my speedo gauge is still sticking. i tore it out today, opened it up cleaned everything, even connections. but still refuses to unstick. Its only accurate when i tap on the glass at a crusing speed. someone told me it could be a bad servo? but it looks like all electronic to me. idk. any ideas?
Nick

Buy a Chevy

Then he'd have to ride the bus to work. :w2: :w2:

the bus would probably have a 7.3L powerstroke in it so it'd probably be broken down too

Look at the speed sensor on top of the rear end. Connection probably needs to be cleaned.

ok cleaned that, still doing it. where is this servo i heard of? is it built inside the dash? i found nothing when i ripped it apart. how about the sensor itself? do i need to open up the diff to get the sensor out?

Most of the speed sensors are removable from the4 outside of the differential.

Please update.

im still stuck bill. id did everything i could (Cleaning wise) i think i need to order the new sensor thats in the diff and try that. but that will be after xmas. unless you have another idea.
Im always open to ideas!

That or it could be an ECM problem.

Updates??

You still getting the P1652 code??

havent checked, but probably, still looking to get that sensor after the holidays.

What did ye find out??

Please update.

Updates please.

still havent bought it yet. little low on funds...
Ill post up when i do correct this problem.
Thanks
Nick

Updates??