Suspension control module

13659 Views 18 Replies 11 Participants Last post by jeff_2527, 1 d ago

Dj perrono

Discussion Starter · May 1, 2009

where is the suspension control module, and is it something you can do your self

1 - 19 of 19 Posts

XLR I FL

· #2 · May 1, 2009

Welcome to the XLR Forum.

I don't think you will be able to do anything yourself with the Suspension control module. It is contolled by the ECM and hooks into your current driving habits to adapt itself to how the car is being currently used.

However CC and other far more knowledgeable members may be able to provide you with additional insight. You might want to post exactly what you are trying to do so theycan give you are more accurate answer.

ccclarke

· #3 · May 1, 2009

The ESC (Electronic Suspension Control) module is located in the left rear well in the trunk next to the Folding Top Control module. The shop manual has an easy remove/replace procedure that doesn't include any re-calibration requirements. (Rare with this vehicle.)

The ESC does not have a malfunction indicator but relies on the IPC (Instrument Panel Cluster) to alert the driver of an issue. When the system detects a fault that results in a DTC, (Diagnostic Trouble Code) the ESC system sends a message which eventually ends up on your IPC. In this case, one of the following gut-wrenching messages will appear:

SHOCKS INOPERATIVE
SERVICE RIDE CONTROL
MAXIMUM SPEED 129 km/h (80 MPH)
BREAK OUT WALLET

If the SHOCKS INOPERATIVE message is displayed, all four shock absorbers will be disabled. The SERVICE RIDE CONTROL message will be displayed any time a DTC in the ESC system is set, along with the MAXIMUM SPEED message.

If the ESC sets an error code, it will default to a fail-soft condition, that is, it will go into a fail or soft (TOUR RIDE) setting.

If you're getting one of these error messages, it doesn't necessarily indicate the ESC module is at fault; there are a lot of inter-related components in the ESC system. A Tech 2 scan tool is requred to properly diagnose and isolate the fault.

If you desire to modify the suspension, you could inadvertantly interfere with the ESC system operation. In this case, a whole lot of technical expertise will need to be brought onboard. It was impossible to discern from your post exactly what you meant.

I hope this is of some help to you.

CC :cheers

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Dj perrono

Discussion Starter · #4 · May 1, 2009

the code that I'm getting is service ride control, I took it to the Cadillac dealer$hip, they said I needed the suspension control modual. I've located one, but wasn't sure about the install. I know they give .5 labor hours in the parts breakdown sheet. Thanks for your help

ccclarke

· #5 · May 1, 2009

ESC Module Replacement:

1) Raise the LR floor compartment lid.
2) Gently push down on the ESC module in order to release it from the mounting bracket.
3) Disconnect the ESC module harness connectors.

To install, reverse the order.

* Editor's Note: This procedure was lifted from an '04 service manual. Your results may vary. You shouldn't have any trouble trying this out before you buy the part. Check gmpartsdirect.com or one of the other online parts houses for significant savings on OEM parts.

CC :cheers

Dj perrono

Discussion Starter · #6 · May 3, 2009

Thanks a lot for your help, if I have any more questions I know where to go.

corvettemike

· #7 · Jun 8, 2011

where did you find your module?

jmoody66

· #8 · Nov 12, 2011

i messed up

While installing a new axle, attempting to get rid of the damn clicking, I accidentally broke the housing of the wire that attaches to the shock. So I have been driving it this way saying ill figure it out later...well over the past week the sagging began slowly. Where I normally had an inch between wheel and wheelwell...I now have maybe a 1/4".... mind you I'm running 20" wheels so now its rubbing. I am curious as to if the shock has slowly just deflated causing this and if I reattach my wire to the shock will it fix the issue. Seems to me it would. Suggestions?

ccclarke

· #9 · Nov 13, 2011

You're on the right track. Start with the obvious and work from there. Let us know what happens after you repair the open wire.

CC :seeya

McQuick21

· #10 · Sep 17, 2017

CC. If I get another suspension module (10348979) and I plug it in and my car will not start is it 100% sure that the module does not work. My car still runs with my original suspension module it just won't control the suspension.

ccclarke

· #11 · Sep 17, 2017

Would you please start a new thread, rather than posting in this old (from 2009) one? That way it doesn't get lost in the mix and other owners with a similar problem to yours can locate the thread easily.

Just click on the Thread Starter icon, give it a descriptive title and describe your problem and what steps you've taken to troubleshoot it.

Thanks,

CC

larrynavarro21

· #12 · Apr 21, 2022

My 07 xlrv has the waterloged top control module but i cant find the suspension control module thats supposed to be next to pump ... i think 04 -05 is different than 07 . Can anyone help me ?

larrynavarro21

· #13 · 2 mo ago

larrynavarro21 said:
My 07 xlrv has the waterloged top control module but i cant find the suspension control module thats supposed to be next to pump ... i think 04 -05 is different than 07 . Can anyone help me ?

A yr later ... still no answers?

bion

· #14 · 2 mo ago

Did you neverfind it? Its a small slim module 4 x 6" or so silver next to the top control module. Yours should not be any problem as they sealed it up better than the 04-05. Did you get a top module. The suspension module has a rounded plug connection with a handle type lock on the plug

gettyupgo

· #15 · 15 d ago

ccclarke said:
The ESC (Electronic Suspension Control) module is located in the left rear well in the trunk next to the Folding Top Control module. The shop manual has an easy remove/replace procedure that doesn't include any re-calibration requirements. (Rare with this vehicle.)

The ESC does not have a malfunction indicator but relies on the IPC (Instrument Panel Cluster) to alert the driver of an issue. When the system detects a fault that results in a DTC, (Diagnostic Trouble Code) the ESC system sends a message which eventually ends up on your IPC. In this case, one of the following gut-wrenching messages will appear:

SHOCKS INOPERATIVE
SERVICE RIDE CONTROL
MAXIMUM SPEED 129 km/h (80 MPH)
BREAK OUT WALLET

If the SHOCKS INOPERATIVE message is displayed, all four shock absorbers will be disabled. The SERVICE RIDE CONTROL message will be displayed any time a DTC in the ESC system is set, along with the MAXIMUM SPEED message.

If the ESC sets an error code, it will default to a fail-soft condition, that is, it will go into a fail or soft (TOUR RIDE) setting.

If you're getting one of these error messages, it doesn't necessarily indicate the ESC module is at fault; there are a lot of inter-related components in the ESC system. A Tech 2 scan tool is requred to properly diagnose and isolate the fault.

If you desire to modify the suspension, you could inadvertantly interfere with the ESC system operation. In this case, a whole lot of technical expertise will need to be brought onboard. It was impossible to discern from your post exactly what you meant.

I hope this is of some help to you.

CC :cheers

The 04-05 have some issues with this module especally if it gets wet. Very expensive to replace.

jeff_2527

· #16 · 8 d ago

It's not so bad when you know the trick.

cliftondgross

· #17 · 2 d ago

jeff_2527 said:
It's not so bad when you know the trick.

Jeff. I need to know the trick for the electronic suspension module. My left reared is sagging. I've changed shocks (OEM) it helped but still sagging. From what I'm hearing it could be the module?

jeff_2527

· #18 · 2 d ago

You're an HVAC guy....we're already friends then. The '04/'05 Cadillac XLR suspension control module can be replaced with the '06 Corvette C6 suspension control module. You'll have to do some wiring which I've done to my '05 XLR and will be more than happy to explain to you if you like. You'll need some of those good solder butt connectors that heat shrink. The used C6 module I purchased off of ebay was only $120 my friend, not the $2000 that everyone wants for a used XLR module. Hardest part was the pin for pin swap at the module since I was too cheap to pay for a C6 wiring harness to get the other connector needed, so I only spent the money on beer and did it one night after work.

jeff_2527

· #19 · 1 d ago

This will help.

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