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Repeated PSM failure after 5 minutes driving

sycho

New member
Joined
25 Oct 2023
Messages
9
Hi, every time I drive my car I get a PSM failure, usually after 5 or 10 minutes. Switch off then restart and the fault disappears for a while.
PSM module has code C190 fault instrument cluster (comfort) implausible signal.
Code will note clear.
Have fitted new battery, brake and clutch pedal switches, PCM and PASM modules are non active and faulty free, no other codes showing.
Car drives fine, but no PSM and sport mode.
Advice gratefully received.
 
which device are you using for the fault codes ?

what's the position on swapping out the instrument cluster ?
 
Hi, I'm using Foxwell NT530 and isoft por.3.
Hadn't thought about swapping the cluster, sounds expensive, lots of coding etc.
This fault arose soon after I deleted PASM with resistors, I then programmed out PASM and unplugged thinking this would solve PSM issue, but no luck.
I'm will swap brake pedal switches again today as I still sometimes get a code for this but it clears ok.
Thanks for reply, will report back.
 
Hi, I'm using Foxwell NT530 and isoft por.3.
Hadn't thought about swapping the cluster, sounds expensive, lots of coding etc.
This fault arose soon after I deleted PASM with resistors, I then programmed out PASM and unplugged thinking this would solve PSM issue, but no luck.
I'm will swap brake pedal switches again today as I still sometimes get a code for this but it clears ok.
Thanks for reply, will report back.
Reporting back having swapped brake light switch again, no change. Below are the scan results, C190 being repeatedly mentioned and will not clear.
Car runs fine, but PSM fails after 10 mins driving.
Any and all advice gratefully received.

PORSCHE 997.1 C4S 2005 COUPE 64k. SCAN 26/05/2024


DME. P0073 AMBIENT TEMP VIA CAN

PSM. C190 INSTRUMENT CLUSTER. COMFORT

4340 STOP LIGHT SWITCH

PAS. 8004 TERMINAL 50 LOWER LIMIT EXCEEDED

INSTRUMENT CLUSTER CONTROL SYST.

C141 COMMUNICATION PCM

C177 FAULT FRONT CONTROL UNIT IMPLAUSIBLE

AIR CON. C190 INSTRUMENT CLUSTER COMFORT

C177 FAULT FRONT CONTROL UNIT

DRIVER DOOR CONTROL SYST. C190 INST CLUSTER

FRONT CONTROL SYST. 8021 LUGGAGE COMP LIGHT

8031 OUTSIDE TEMP SENSOR IMPLAUSIBLE SIG

C190. INST CLUSTER

PASSENGER DOOR CONTROL. C190 INST CLUSTER

POSIP CONTROL SYST. C141 PCM COMMUNICATION

C152 COMMUNICATION PSM CONTROL UNIT DRIVE

VEHICLE ELECTRICAL CONTROL SYST. C190 INST CLUSTER
 

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