kday
December 6th, 2011, 13:27
I bought a second-hand MTM-tuned RS6 ECU. As expected the car won't start due to an immobilizer error. I did not expect the checksum error though:
Address 01: Engine Labels: 077-907-558-BCY.lbl
Control Module Part Number: 4D1 907 558 D
Component and/or Version: 4.2l V8/5VT G 0003
Software Coding: 0006752
Work Shop Code: WSC 00000 785 00200
VCID: 2F670C9DC786
2 Faults Found:
16985 - Internal Control Module: Memory Check Sum Error
P0601 - 001 - Upper Limit Exceeded
17978 - Engine Start Blocked by Immobilizer
P1570 - 008 - Implausible Signal
Has anyone else experienced the 16985 error with MTM?
Regarding the immobilizer, is there an easier way to fix it than copying the SPI EEPROM?
Here are some pics of the ECU swap procedure. Audi really doesn't want us messing with the ECU! This tamper resistant case wasted at least a half hour. But my car is 4 ounces lighter now!
http://blog.ultrameta.org/wordpress/wp-content/uploads/2011/12/mtm1.jpg
http://blog.ultrameta.org/wordpress/wp-content/uploads/2011/12/mtm4.jpg
Back in without tamper-proof (ha!) case:
http://blog.ultrameta.org/wordpress/wp-content/uploads/2011/12/mtm3.jpg
MTM chip:
http://blog.ultrameta.org/wordpress/wp-content/uploads/2011/12/mtm7.jpg
Address 01: Engine Labels: 077-907-558-BCY.lbl
Control Module Part Number: 4D1 907 558 D
Component and/or Version: 4.2l V8/5VT G 0003
Software Coding: 0006752
Work Shop Code: WSC 00000 785 00200
VCID: 2F670C9DC786
2 Faults Found:
16985 - Internal Control Module: Memory Check Sum Error
P0601 - 001 - Upper Limit Exceeded
17978 - Engine Start Blocked by Immobilizer
P1570 - 008 - Implausible Signal
Has anyone else experienced the 16985 error with MTM?
Regarding the immobilizer, is there an easier way to fix it than copying the SPI EEPROM?
Here are some pics of the ECU swap procedure. Audi really doesn't want us messing with the ECU! This tamper resistant case wasted at least a half hour. But my car is 4 ounces lighter now!
http://blog.ultrameta.org/wordpress/wp-content/uploads/2011/12/mtm1.jpg
http://blog.ultrameta.org/wordpress/wp-content/uploads/2011/12/mtm4.jpg
Back in without tamper-proof (ha!) case:
http://blog.ultrameta.org/wordpress/wp-content/uploads/2011/12/mtm3.jpg
MTM chip:
http://blog.ultrameta.org/wordpress/wp-content/uploads/2011/12/mtm7.jpg