Systematic Redundancy System and Multifunctional Malfunctions

[NAVITEL]

Initially, I must mention that I am utilising a China Delphi CDP Autocom to diagnose and erase errors. I suspect the vehicle is a W203; but, upon reading the VIN, Delphi identifies it as a 2008 CLC, which it absolutely is not.

The SRS malfunction appears to be caused by significant resistance in the driver's airbag. I will examine the connector after the rain ceases.


Multifunction diagnostics indicate numerous defects; nonetheless, it appears that all components of the vehicle are functioning well. The system is indicating parking aid malfunctions, despite the absence of parking sensors in the vehicle.

This is the SAM list. The vehicle was operational, hence I am uncertain as to why I am experiencing simultaneous overvoltage and undervoltage conditions. Is there a comparable defect list from "Front SAM"?

Multifunction (SAM - Rear (Signal Acquisition and Control Module - Rear) - SAMH203 (Signal Acquisition and Control Module - Rear) - MT/AT) B1043 - Terminal 30: undervoltage < 8 V - Permanent

B1093 - Malfunction in CAN communication with control unit Left frontal entrance. If a fault code appears without any documented complaints or problems, clear the fault memory and conduct a function check - Permanent

B1045 - Permanent Overvoltage

B1078 - Communication fault with alarm signal siren, possibly due to an additional battery issue or cable malfunction. - Indelible

B1044 - Terminal 30: permanent undervoltage below 10.5 V

B1066 - Left turn signal; short circuit or open circuit - Permanent

B1089 - Malfunction in CAN communication with the instrument cluster control unit. If a fault code appears without any documented issues or malfunctions, clear the fault memory and conduct a functional check - Permanent

B1054 - Left stop light; short circuit or open circuit - Permanent fault

B1091 - Malfunction in CAN communication with the AAC pushbutton control unit. In the event of a fault code appearing without any documented complaints or failures, clear the fault memory and conduct a functional check. - Enduring

[BENZE220AMG]

The overvoltage and undervoltage faults are likely historical. The majority are referred to as BS codes. Ensure to measure the alternator's output when it is operational.

If you exhibit no defects or symptoms, disregard the codes.


It is likely that you will need to do wiring inspections for the airbag malfunction. Wiring schematics and potentially a resistance-generating gadget will be required. https://cpc.farnell.com/c/test-equi...multi-meter or resistance and continuity meter.

Are there any defects with the steering wheel buttons? Are there any codes in the SWCM?

[NAVITEL]

Indeed, I possess multiple multimeters and have over 40 years of knowledge in electronics, hence I should be capable of diagnosing the SRS error.

I find it peculiar that there are flaws attributed to non-existent oecus. Perhaps it is merely an anomaly associated with the China Delphi CDP clone?


The anomaly regarding the VIN is peculiar. The "read VIN" function correlates the vehicle with the V5C paperwork; however, CDP recognises the VIN as a W203 CLC from 2008 onwards.

[QuirkyPixel]

This would lead me to doubt the quality and reliability of the Chinese clone.

[NAVITEL]

I concur. It performs adequately with most vehicles; nevertheless, I have reservations regarding the reliability of the offline VIN decoding. US decoders typically misinterpret UK or European decodes and complain about incorrect check digits. This one is accurate. https://www.vindecoderz.com/

Notably, the SRS fault had vanished this evening. Likely related to temperature and humidity; therefore, I will certainly clean the connector(s).