SL-Class (R230) 2003 -- 2012: Discussion on the SL500, SL550, SL600

SL/R230: Trouble Resetting a few Fault Codes

Old Mar 27, 2025 | 07:04 PM
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Just sold my '11 Porsche TurboS cab for an '03 SL55!
Trouble Resetting a few Fault Codes

I recently had my '03 MY off of the trickle charger to the point that I got the accessories offline message associated with a low accessory battery. We know that this can trigger all kinds of faults and codes........it did, and I went in with my Xentry DAS to sort that out but had trouble clearing a couple of these. Let's see who might be able to help me. I'm seeing a Message saying more or less, Cluster Fault see dealer and my TPM won't show the pressures.

1) Steering Module: I get "can't clear codes due to comm error with module, or bad module error code 530.2116" But both of the codes listing having to do with the "Cell Phone button" and they reference code S110s3 which I believe may mean Service Exceeded. The cluster shows ~900 miles to next service. I tried to reset the service interval in Xentry, which I thought I have done before, but can find that function. It has the MB cell phone which, I believe is deactivated.
2) ICM Cluster: Initially I was getting the same info as the steering module, but eventually those faults cleared........in case that hints at anything.
3) Checked the TPM module: When I try to clear I get " Can't initialize. Causes: Voltage to module low, or M88 module faulty. Seems like a communication error. System worked last time I checked. All TPM sensors were replaced 2 years ago.

Thanks, fellow diagnosticians,
MK19
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Old Mar 31, 2025 | 01:58 PM
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MK19's Avatar
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From: Rocky Mountains, Colorado
Just sold my '11 Porsche TurboS cab for an '03 SL55!
I've solved much of this so here's a follow up:
The message that "the display has malfunctioned go to workshop" was traced with STAR/DAS to the TPS module not communicating with the cluster. Seems a bit odd but that was it. First I checked the two fuses, both OK. Then I went into "Chassis" in DAS and then to "TPS" where I found that there was a function whereby you could transfer TPS setting to a new replacement module. I used that function as though I'd replaced the module and got a reading that the module was performing normally, and the display message went away. I still need to calibrate the module using STAR as it is reading 2-3 psi low. Then when looking in the user manual for how to reset the TPMS after the tire pressures are adjusted (which I never found so I may be confusing this with another car) I came across the "activate/deactivate" TPMS and found my system was deactivated. Now it works and I can see that it needs calibration.
To get there in STAR/DAS: Go to Modules >> Chassis >> TPMS.

I still have a "one malfunction stored" message which apparently related to one of the phone switches in the steering wheel. This shows up in the steering module, and I guess I'll have to take the steering wheel apart to get at the switch and either jump it or cut the wire. Anyone experience this?
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