Power steering failure….again

[Maximus Gladius]

This is my 3rd pump to go in 90k kms. Happened yesterday coming home. I’m real good at strong arm steering so it was no big deal, but COME ON?!

Got it home and checked fluid levels and pulled the top ground post wire behind the passenger headlight and cleaned up the mating surfaces but that didn’t do anything. My next “fix” is to get my hands on the high amp Z Fuse array and replace that hopefully this morning if I can locate one. I’ve ordered one on line as a back up to have.

I recall in another post on the same issue it was suggested the the power steering pump is fused at the Z fuse. Upon reading the fuse box lid, I didn’t see the PS pump mentioned there. Can anyone confirm this?

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[PuddleJumper]

This is my 3rd pump to go in 90k kms. Happened yesterday coming home. I’m real good at strong arm steering so it was no big deal, but COME ON?!

Got it home and checked fluid levels and pulled the top ground post wire behind the passenger headlight and cleaned up the mating surfaces but that didn’t do anything. My next “fix” is to get my hands on the high amp Z Fuse array and replace that hopefully this morning if I can locate one. I’ve ordered one on line as a back up to have.

I recall in another post on the same issue it was suggested the the power steering pump is fused at the Z fuse. Upon reading the fuse box lid, I didn’t see the PS pump mentioned there. Can anyone confirm this?

Make sure F34 isn't blown.

F34

10 Amp Red

Electronic Stability Control (ESC)/Electric Hydraulic Power Steering (EHPS)/Smart Bar Control Module (SBCM) WAKE UP

 

[Maximus Gladius]

Make sure F34 isn't blown.

F34

10 Amp Red

Electronic Stability Control (ESC)/Electric Hydraulic Power Steering (EHPS)/Smart Bar Control Module (SBCM) WAKE UP

THANKS! I go have a look

 

[Maximus Gladius]

Nope. F34 is good. I do have the repeat flashing “service PS “ dinging on the dash too.

 

[Maximus Gladius]

Located the Zcase fuse at a dealership close to me. $124 cad. I’ll swing on over there shortly and swap that out and see what happens. Let’s hope it doesn’t explode and burn to the ground. ?

 

[Hootbro]

The main power line does go to the N6 terminal on the fuse array.

If you fuse array is bad on the N6 leg, may have to ask what is popping that and look towards the power steering pump motor or wiring.

I would also suggest checking power at Fuse F34 in the run position. If no power, might be a relay issue.

 

[ZeeJay]

The main power line does go to the N6 terminal on the fuse array.

If you fuse array is bad on the N6 leg, may have to ask what is popping that and look towards the power steering pump motor or wiring.

I would also suggest checking power at Fuse F34 in the run position. If no power, might be a relay issue.

I just downloaded that, good info for pinouts later, thank you.

 

[Maximus Gladius]

The main power line does go to the N6 terminal on the fuse array.

If you fuse array is bad on the N6 leg, may have to ask what is popping that and look towards the power steering pump motor or wiring.

I would also suggest checking power at Fuse F34 in the run position. If no power, might be a relay issue.

Got the Z fuse replaced and pump is still dead. So with engine running I checked F34 with the reader and it reads 00.1/.2 The numbers dance back and forth .1 -.2

 

[Hootbro]

Got the Z fuse replaced and pump is still dead. So with engine running I checked F35 with the reader and it reads 00.1/.2 The numbers dance back and forth .1 -.2

I assume you meant F34, not F35?

I would check the other fuses that are control by the K08 RUN/START relay like F49, F40, F32, F41, F22 and F33. If you have voltage on all those and not on F34, then you may have a PDC issue.

 

[Maximus Gladius]

I assume you meant F34, not F35?

I would check the other fuses that are control by the K08 RUN/START relay like F49, F40, F32, F41, F22 and F33. If you have voltage on all those and not on F34, then you may have a PDC issue.

Yes I meant F34. Thanks for your help!

 

[Lunentucker]

That Jeep really does hate you.

 

[Hootbro]

You have any ABS warnings? That F34 branches off to both the power steering control and ABS module. If no power was coming out of F34, it should fail both.

Edit: I am assuming you are versed with using a multimeter?

 

[Maximus Gladius]

Tested in RUN:
F22 - 00.0
F32 - 01.8
F33 - 00.0
F40 - 00.0
F41 - 02.4
F49 - 04.0

 

[Maximus Gladius]

You have any ABS warnings? That F34 branches off to both the power steering control and ABS module. If no power was coming out of F34, it should fail both.

Edit: I am assuming you are versed with using a multimeter?

No ABS warning light. Yes, I’m good with the multimeter. No ABS module issues noted on my OBD2 either

 

[Maximus Gladius]

That Jeep really does hate you.

It’s probably been a wiring harness problem all along, perhaps. But you know what has fought back against all the hate my Jeep has for me? It’s been all the luv’n I get from this community ?

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