VAG-COM Discussion

DTC code 16985

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Old Sep 26, 2009 | 01:21 PM
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Default DTC code 16985

16985 P0601 035
Internal Control Module Memory
Check Sum Error

any suggestions on what maybe causing this code?

Searching seems to reveal issue with APR chip/flash. ECU is stock, as far as I know. Purchased this leased return '05 6mt in January from auction so no real history outside of dealer repair/service records.

Anyway to tell easily? Will my local APR dealer be able to scan? Tryin gto figure out options since AR is still under factory warranty until end of October and if its a bad stock ecu, I'd like to get it resolved before I make any ecu upgrades.
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Old Sep 26, 2009 | 06:32 PM
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BTW, reason I noticed code was CEL came on.
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Old Sep 28, 2009 | 12:56 PM
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http://wiki.ross-tech.com/index.php/16985/P0601/001537

Also check for a faulty battery or charging system problem. Voltage can do this as well.
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Old Sep 28, 2009 | 01:02 PM
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VAG-Com showed 14.1 on alt/battery reading, so system is charging correctly.
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Old Sep 28, 2009 | 02:21 PM
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You mentioned it is still under warranty. Possibly the 8Yr/80K Federal Emissions or it is a certified vehicle?

I would see about the warranty before having any modifications done. I doubt a tuner would even "chip" this ECM with that fault.
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