Recently I went out to start my truck which stays hooked to my 5th wheel and the batteries were dead. I thought it was odd but dismissed it as the batteries are 4 years old. My truck is a 6.0 with manual 6 spd and manual 4X4. It is the XL trim pkg. upon arriving at my destination I noticed when I killed the truck the dome lights went out immediately after I shut the door and the radio stayed on when the door was opened. I was not too concerned at this point as it felt like the ignition switch was bad. I replaced it. Still same results. I then began to dig deeper and noticed that the time delay circuit was staying energized. I traced into the cluster and when I removed it the board was uber hot. I sent it to Circuit Board Medics and had it repaired. It came back and same issue. So then I tested the door switches (all 4) and found they were good. I talked to a couple folks and decided to purchase a new fuse box or "SJB" and I put it in and still have same issues except now the wipers won't work along with the time delay circuit staying energized. I am at wits end and need help!! Sorry for the long winded post.

 

Maybe it's the headlight switch.

 

I have checked the switch and it is good

 

Bump bump bump

 

Hey guys, I have not found anything new yet, could this just be a parameter set or programming issues? I am at a total loss. I pulled the harness cover back on all the door wires and none of the wires are chaffed. What do I need to do next?

 

Do you have access to the diagrams or do you want me to post them for you?
Throwing parts at it is not a good solution.
If you give me a little bit I can have a set that covers the section your looking at for you to read.


Sean

6.0L Tech Folder

EDIT : Look in the CJB (cab relay and fuse box) at C2075 (Accessory Delay Relay) Just above F2.41 to see if pulling
that relay turns things off or not.

 

The time delay relay stays pulled in. When I pull relay from CJB the circuit dies. If I reinstall relay, the radio comes on and it does not go off unless you turn it off with the ****.

 

Look at page 60-6 in this PDF
that I am uploading. You have 2 relays in the cluster.
One is the accessory delay pilot relay It is the Battery Saver Relay
and the other is the lighting relay.
Try pulling fuse F2.2 that is the main power for the cluster. The
other two F2.35 & F2.41 are the switched lines. Put F2.2 back
in and If you also pull F2.41 that is the switched power to the
battery saver relay and the accessory delay relay. The battery
saver relay controls the accessory delay relay.

Do the fuse pulling in the order I gave in the text and
put each one back before moving on to the next.

I am going to do a bit more digging. I have a printed copy of the
cluster diagram that I want to look at. So you give this a try and
I'll go look at that diagram.


Sean

6.0L Tech Folder

 

I will have time to look at it tomorrow afternoon, I have studied these prints. Thank you for uploading them. This is something that I dearly needed to make informed decisions. I will report back my findings!

 

All those fuses are hot with key off, out and door open.

 

Is it possible that the cluster and or the fuse box need to be flashed? Is that parameter set imperative to the correct operation of the battery saver/time delay really?

 

The CJB (fuse box) is a dumb box. No CPU.
The cluster does have a cpu.
Also the fuses I listed are hot at all times.
Did you pull in the order I gave and what happened each time?
The cluster should already be programed and when you had it worked on
they should of not upset it.

I found a diagram I should of included with the other one.

There are some interconnections between the two.


Sean


EDIT: Pull the cluster out and have a very close look at the 2 connectors and the harness gong away from them.
Look for bent pins and any pinch points in the harness. Take your time and go over every inch.
The 2 connectors are C220 A&B on C220B there is a light blue wire that if it's grounded will energize
the Accessory Delay Relay. So it it got nicked somehow and it grounding that would do it.
I also added the connector pin out for each of the connectors and the location but I think you already know where that is.

 

Thank you, I will take a look at the harness and report back!

 

Ok after looking into the situation a little further I have found this:
Pin 4 on connector 220b has continuity to ground when connector is plugged into cluster. When connector is unplugged ground goes away. I searched every inch of this harness and didn't see any chaffing. Also checked continuity to ground with wires twisted and pulled in all different directions. Nothing. Battery saver relay is active/energized all the time. If you unplug 220a from the cluster, the interior lights come on for a brief period and turn off like intended. I almost feel like the issue is still with the cluster. When I pulled the fuses in order with the doors open, the lights and delay relay go off with 2.2, the delay relay in the cjb goes off with 2.41, and 2.35 kills just the lights. Still looking.

 

Also mysteriously the wipers quit working. The washer fluid pump still runs and all the other functions of the mf switch work just fine.......not convinced that it's a wiper motor but it could be. Just seems odd that it just did this all of the sudden with all these other problems.