System Fault, Check engine light, ABS, Brake - Club Touareg Forums
 
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post #1 of 3 Old 3 Weeks Ago Thread Starter
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System Fault, Check engine light, ABS, Brake

Recently our 2009 Touareg v6 has been having the System Fault dash message come up along with Check engine Light, ABS, Brake, and several other alerts. I have been through and checked the wiring for corrosion and also replaced the battery, and verified charging system is good. Outside of that it's intermittent, usually at first startup, attached are the vcds codes from several modules. Any help would be greatly appreciated.
Attached Files
File Type: pdf engine.pdf (75.3 KB, 12 views)
File Type: pdf abs.pdf (39.6 KB, 8 views)
File Type: pdf trans.pdf (38.5 KB, 6 views)
File Type: pdf central conv.pdf (68.3 KB, 10 views)
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post #2 of 3 Old 3 Weeks Ago
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First thing I would do is load test the battery. Then maybe check the ecu ground if still having problems. Just guessing on my part about the ground.

3 V10TDI's: (2)2004 Black/Black, Silver/Black and 2004 V10TDI in 1990 Corvette
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post #3 of 3 Old 3 Weeks Ago
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Do you have an aftermarket radio unit?
If so remove it, disconnect the battery for a few hours and scan again.
If not you should start hunting for gremlins in the wiring, maybe getting secondhand used ebay modules to do trial and error troubleshooting till you find the bad one. Most likely you have a wiring issue.
Any water leaks recently?
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