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Title: ABS comm issues after cluster swap Post by: Parallax9 on August 02, 2021, 04:51:14 PM Chasing down an issue after cloning and swapping a new cluster into my B5.5.
Original cluster from 2003 V6 (3b0 920 907 B - VDO V08) was cloned to a W8 cluster (3b7 920 946 E - VDO V09) of the same year. When installed to the car, 3 codes are present in the VCDS Scan In ABS module - 01203 - Electrical connection between ABS and Instrument Cluster - Open or Short to Ground In 17 Instrument and 19 Gateway 01316 - ABS Control Module - No communication When I swap the stock cluster , all ABS related codes disappear. The ABS module is fine and already been repaired, and while the codes are present with w8 cluster installed, they don't make the abs or brake light flash, or effect driving performance. They are ghost codes sitting in address 03, 17, and 19. Instantly return when cleared in VCDS. As the codes are only present in those 3 areas, I assumed it was something related to the clusters just can't determine if it's an issue with the eeprom coding, or a hardware issue with the cluster itself. Will attach VCDS logs with both clustered installed. Title: Re: ABS comm issues after cluster swap Post by: Parallax9 on August 03, 2021, 07:34:10 PM here are the logs
Title: Re: ABS comm issues after cluster swap Post by: ZpiXDK on August 04, 2021, 12:55:59 AM Have no idea if those clusters are interchangeable
But did you make sure to correct the variant coding? -you change numers in VCDS Title: Re: ABS comm issues after cluster swap Post by: atdub on August 04, 2021, 07:28:15 PM Delete it in Error class...Maybe?
Title: Re: ABS comm issues after cluster swap Post by: Parallax9 on August 05, 2021, 02:28:27 AM I purchased this as a "plug and play" cluster, someone else edited the bin while repairing the screen and changing the LEDs. He sent me another file to write, but the codes persist.
I drove the car for 150 miles today, and while the ABS electrical connection to cluster fault is present in address 03 ( abs module) and no comms fault in address 17 and 19 (cluster and gateway) in VCDS, the car drives fine, no CEL or any lights on cluster, no brake warnings or abs flashing. If someone wants to check the .bin for me, I'd be willing to pay whatever you see fit, and be forever grateful. I've tested the wires to the cluster from abs module and there is no actual short present, also indicated by the fact the original cluster doesn't show these faults. Sent from my Pixel 3a XL using Tapatalk Title: Re: ABS comm issues after cluster swap Post by: Faiber on October 21, 2021, 11:22:53 PM I have seen w8 cluster eeproms where speed source setting is 0x82. Would try 0x81 to abs speed source or 0x80 for gearbox sender. Eeprom addres for speed source is 0x65
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