To properly coding the rear disc brakes in my 6R, it was necessary to replace the ESP Bosch 8.0i pump with a newer version of the Bosch 9.0i.
It was necessary to change few wires in the ESP/ABS pump connector:
| T38/ | ESP8.2i May 2009 | ESP8.2i Nov 2009 | ESP8.2i 7L6 May 2012 | ESP9.0i PQ Nov 2012 | ESP9.i MQB | ESC |
|---|---|---|---|---|---|---|
| 1 | SA5 +30 | SA5 +30 | SA5 +12V | SA5 +12V | +30 | +12V +30 |
| 2 | ||||||
| 3 | ||||||
| 4 | E492 T6/4 | E492 T6/4 | E492 T6/4 | G45 T2/1 | G45 T2/1 | E256 T6/5 |
| 5 | E256 T6/4 | E256 T6/4 | E256 T6/4 | |||
| 6 | G45 T2/1 | G45 T2/1 | G45 T2/1 | G294 T3/1 | G294 T3/1 | +15 |
| 7 | SC4 +30 | SC4 +30 | J570 T9/1 +12V | |||
| 8 | T4/1 F | J570 T9/4 +12V | J570 T9/4 +12V | G47 T2/1 | G47 T2/1 | E616 T6/5 |
| 9 | ||||||
| 10 | Can PT low | |||||
| 11 | Can PT high | |||||
| 12 | E492 T6/6 to +15 | E492 T6/6 | J500 T5/1 | |||
| 13 | GND | GND | GND | GND | GND | GND 6.0mm2 |
| 14 | Can PT low | Can PT low | E616 T6/2 | |||
| 15 | Can PT low | Can low | Can PT low | |||
| 16 | J570 T9/8 +12V | J570 T9/8 +12V | G45 T2/2 | G34 T2/2 | ||
| 17 | G44 T2/1 | G44 T2/1 | G294 T3/1 (TSI) | |||
| 18 | G45 T2/2 | G45 T2/2 | G45 T2/2 | G47 T2/2 | G47 T2/2 | |
| 19 | G44 T2/1 | G44 T2/1 | G44 T2/1 | G46 T2/2 | G46 T2/2 | |
| 20 | G46 T2/2 | G46 T2/2 | G46 T2/2 | E492 T6/5 | ||
| 21 | G294 T3/3 (TSI) | |||||
| 22 | G47 T1/2 | G47 T1/2 | G47 T1/2 | E256 T6/5 to +15 | E256 T6/5 | |
| 23 | G294 T3/2 (TSI) | |||||
| 24 | ||||||
| 25 | SC1 +30 | SC1 +30 | SC1 +12V | SC1 +12V | +30 | +12V +30 |
| 26 | Can PT high | Can PT high | Can PT high | Can PT high | Can PT high | G45 T2/2 |
| 27 | G45 T2/1 | |||||
| 28 | SB9 +15 | +15 | +15 | J187 (diff lock) | ||
| 29 | G44 T2/2 | G44 T2/2 | G46 T2/1 | |||
| 30 | J623 D73 F brake | J623 D73 F brake | J623 D73 F brake | J623 D73 F brake | J623 D73 F brake | G46 T2/2 |
| 31 | G46 T2/2 | G44 T2/2 | G44 T2/2 | G46 T2/1 | G46 T2/1 | |
| 32 | G294 T3/3 | G294 T3/3 | J623 D73 F brake | |||
| 33 | G46 T2/1 | G46 T2/1 | G44 T2/2 | |||
| 34 | G47 T2/2 | G47 T2/2 | G44 T2/1 | |||
| 35 | SB9 +15 | SB9 +15 | SB9 +12V +15 | |||
| 36 | G47 T2/1 | |||||
| 37 | G294 T3/2 | G294 T3/2 | G47 T2/2 | |||
| 38 | GND | GND | GND | GND | GND |
- G44 RR speed sensor
- G45 FR speed sensor
- G46 RL speed sensor
- G47 FL speed sensor
- E256 ESP button
- E618 Hill descend button
- J500 Power steering control unit
- J570 Voltage stabiliser 2 on relay carrier
- E492 TPMS reset button
- F Brake light switch
- G294 Brake servo pressure sensor
Information about individual bytes (coding):
docs.google.com/document/…iLeSzm_HtU8eWQSGeUkg/view
Here I showed a few photos from the process of undressing the ESP/ABS pump connector
Big thanks for iichel!
I had some problems writing the new coding in the ABS pump.
There are many descriptions of individual bytes on the Internet:
Finally, with the help of Michel, after many unsuccessful attempts, the pump coding was finally saved.
My new coding (Polo 6R MY2012 1.4 CGGB + ESP Bosch 9.0i):21DD2885212400C984141472845900400905
