Help - My CRD died on highway traveling 45 to 50 mph

racertracer · **Posted:** Mon Jun 29, 2020 10:22 pm

Same old codes I started with:

P0091-FUEL QUANTITY SOLENOID SHORT TO GROUND
P0651-SENSOR SUPPLY 2 VOLTAGE TOO HIGH AND TOO LOW
P2295-FUEL PRESSURE SOLENOID SHORT TO GROUND
P0190-FUEL PRESS SENSOR SIGNAL VOLTAGE TOO LOW

Less this one ... the following code disappeared.

B10B3-VISCOUS/CABIN HEATER RELAY CONTROL OPEN CIRCUIT

flash7210 · **Posted:** Tue Jun 30, 2020 10:55 am

Does the red dot stay lit the whole time after you turn the key on?
Under normal conditions it will briefly turn on then stay off.

If you have a spare key, try it.

racertracer · **Posted:** Tue Jun 30, 2020 9:26 pm

The red light comes on for a second when I turn the key and quickly goes out then on and stays on till i turn the key off.

I tried the second key and the light remained on ... no change.

flash7210 · **Posted:** Wed Jul 01, 2020 6:00 am

Probably gonna have to have it towed to a dealer then.
Either the key lost its programming or the SKIM failed or both.

WWDiesel · **Posted:** Wed Jul 01, 2020 1:55 pm

flash7210 wrote:

Probably gonna have to have it towed to a dealer then.
Either the key lost its programming or the SKIM failed or both.

True on the SKIM issues! And / or find a very skilled shop/mechanic with a SnapOn Verus and who knows how to use it rather than using a dealer.
Some mobile locksmith services also have the ability to deal with SKIM problems.
The SnapOn Verus and a few other very high end scanners along with the Chrysler DRBIII have the ability to deal with SKIM issues.

racertracer · **Posted:** Thu Jul 02, 2020 4:25 am

I found a great response on this thread from BillyBob at the very end .... I'll be using it and see what happenes...

viewtopic.php?f=65&t=86013

WWDiesel · **Posted:** Sat Jul 04, 2020 1:48 am

Watch this YouTube video by COrobotchicken, it may be of help to you.
Jeep CRD Engine Information

jws84_02 · **Posted:** Mon Aug 10, 2020 7:50 pm

Did you ever figure this out racer tracer?

racertracer · **Posted:** Wed Aug 12, 2020 4:19 am

NO.
Engine and tranny are in superb shape.
Electrical problems suck. I am not good with figuring those out.

I need to find a way to get the security light to turn off

Frustrated.

Is there anyone with CRD electrical knowledge in the NY, NJ, CT - tri state area that can help me here?

Billybob · **Posted:** Wed Aug 12, 2020 6:38 am

racertracer wrote:

NO.
Engine and tranny are in superb shape.
Electrical problems suck. I am not good with figuring those out.

I need to find a way to get the security light to turn off

Frustrated.

Is there anyone with CRD electrical knowledge in the NY, NJ, CT - tri state area that can help me here?

Did you try jumpering out pins 30 and 87 inside the ASD relay socket?

On the CRD that red LED for the SKEES system staying ON all the time definitely means that the ECM is happy with the key code....tells the ASD Relay to energize but does not receive acknowledgement from the ASD Relay that it has energized.

First check you have +12 volts on both sides of fuse #26 25A, same on fuse #16 15A and fuse #6 30 A with respect to Ground.

Do this with ignition ON and when you try start the engine. This is on Page 8W-30-25.
If there is no +12 volts on Fuse #16 and Fuse #26 then the ASD Relay is not energizing.

You need to flip over the relay/fuse box under the hood (PDC) so you can see the leads coming into the relays once you remove the cover over those wires...you may need to take the battery out so you can flip the box...then re-connect the battery.

I presume you have downloaded the 2005 Jeep KJ Service Manual at

http://www.colorado4wheel.com/manuals/Jeep/KJ/

Section 8W has the wiring diagrams...you will need them to diagnose any electrical problems....as will any Auto-electrician you may take the Jeep to!

I will go through the diagrams with you....you have a Digital Multimeter I presume? :wink:

racertracer · **Posted:** Wed Aug 12, 2020 10:42 am

Billybob wrote:

Did you try jumpering out pins 30 and 87 inside the ASD relay socket? YES

On the CRD that red LED for the SKEES system staying ON all the time definitely means that the ECM is happy with the key code....tells the ASD Relay to energize but does not receive acknowledgement from the ASD Relay that it has energized. That's good to know.

You need to flip over the relay/fuse box under the hood (PDC) so you can see the leads coming into the relays once you remove the cover over those wires...you may need to take the battery out so you can flip the box...then re-connect the battery. Please clarify why I should do this!

I presume you have downloaded the 2005 Jeep KJ Service Manual at http://www.colorado4wheel.com/manuals/Jeep/KJ/ Yes I have.

Section 8W has the wiring diagrams...you will need them to diagnose any electrical problems....as will any Auto-electrician you may take the Jeep to! OK

I will go through the diagrams with you....you have a Digital Multimeter I presume? I do :wink:

I appreciate your assistance.
How shall we proceed?

Billybob · **Posted:** Thu Aug 13, 2020 12:27 am

First check for +12 Volts on both sides of the fuse #6 ,16, 26 as I stated...this is the starting point!

Then we need to start measuring the wiring around that area....I am pretty sure you have a short of a wire to ground or to another random wire......been there done that plenty times on my 2002 CRD!

So we need to flip the fuse/relay box to get to the wiring.....we will go by the wiring colors and use the wiring diagrams section 8W. Wires are color coded either as a solid color or as a predominate color with a thin stripe of another color. So a wire shown as BR/WT means a Brown Wire with a White stripe. You will see this on page 8W-30-25 where this wire supplies Ground from the ECM to pin 85 of the ASD Relay to energize the ASD coil.
So with the Relay box flipped over we can put one meter probe into the back of the ASD Relay socket pin 85 and the other meter lead into into pin 86 or direct to +12 volts.

We may then have to test for open wires or shorts....this is going to be fun! :BANANA:

Disclaimer.....this could be a long journey and maybe you will end up having to replace the ECM...the ECM can only take a certain amount of shorts to ground or other wires before something blows inside the ECM! :cry:

Some of the bugs on my Jeep took me days to find but I know for a fact that the useless Jeep Dealers here would not have a clue finding my problems! :roll:

Before we go into this....let us confirm that the Red Light that comes ON is the SKEES Led at the left of the console and not the CEL Engine light that could come ON.
My 2002 Export CRD has a different console to yours....the SKEES light on my Jeep is an amber "Key" symbol with a line going through it...newer KJs use a Red Led.

The 2005 Jeep KJ Service manuals have a description of the Cluster and what all the lights on the cluster mean.....let's not go chasing a completely unrelated issue! :cry:

Help - My CRD died on highway traveling 45 to 50 mph

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