Took a 2004 Passat GLS wagon 4motion 1.8t 5 speed manual and swapped in a BHW TDI engine and Euro-spec Quattro 5 speed manual. Everything works as the factory intended except the cruise. This is not my first rodeo and have not had any major issues getting cruise to work in similar projects.
When diagnosing the cruise, all brake, clutch and cruise stalk switches show up in VCDS 01-Engine, block 6, columns 2 and 4. They turn 0 or 1 as they should when switch is activated. Tuner has put in appropriate gear ratios, but cruise will not engage.
Notes:
1. The BHW TDI uses EDC16 (038 997 016 T) and only came mated to an automatic and ABS (5.7 Motronic 4B0 614 517 G) with ESP. ECU communicated with ABS via CAN
2. Speed is provided to ECU via VSS in transmission (not by ABS) for both ECU's
3. The AWM (4B0 906 018 DP) gasser with 4motion manual uses the 5.3 Bosch ABS (8E0 614 111 A, ABS/EDS 5.3 QUATTRO D10) but does not communicate via CAN, but a single wire directly connected to the ECU
4. CAN gateway for BHW was set at 00006 and the 4mo was set at 00004. Have tried both settings.
5. Tried the instrument cluster from the BHW, the AWM and a euro-spec cluster from a B5.5 Passat TDI which was coupled to a EDC15 ECU. None of them made a difference.
I suspect that the BHW ECU not seeing a handshake or signal from the ABS is keeping the cruise from engaging. However, I converted a 2001 AllRoad to a BHW TDI and manual gearbox. It had the same ABS module as the 4motion and cruise worked on it. (I did have to supply an analog tach signal from pin # T94/28 on the BHW ECU to fire the AllRoad tachometer and HVAC system).
Does anyone have access to the ladder logic for the cruise system? The other thing I would like to know is if there is an "analog" input (or output) pin on the BHW ECU that I could run to the ABS pin?
If someone has any insight I would appreciate it.
Thank you
When diagnosing the cruise, all brake, clutch and cruise stalk switches show up in VCDS 01-Engine, block 6, columns 2 and 4. They turn 0 or 1 as they should when switch is activated. Tuner has put in appropriate gear ratios, but cruise will not engage.
Notes:
1. The BHW TDI uses EDC16 (038 997 016 T) and only came mated to an automatic and ABS (5.7 Motronic 4B0 614 517 G) with ESP. ECU communicated with ABS via CAN
2. Speed is provided to ECU via VSS in transmission (not by ABS) for both ECU's
3. The AWM (4B0 906 018 DP) gasser with 4motion manual uses the 5.3 Bosch ABS (8E0 614 111 A, ABS/EDS 5.3 QUATTRO D10) but does not communicate via CAN, but a single wire directly connected to the ECU
4. CAN gateway for BHW was set at 00006 and the 4mo was set at 00004. Have tried both settings.
5. Tried the instrument cluster from the BHW, the AWM and a euro-spec cluster from a B5.5 Passat TDI which was coupled to a EDC15 ECU. None of them made a difference.
I suspect that the BHW ECU not seeing a handshake or signal from the ABS is keeping the cruise from engaging. However, I converted a 2001 AllRoad to a BHW TDI and manual gearbox. It had the same ABS module as the 4motion and cruise worked on it. (I did have to supply an analog tach signal from pin # T94/28 on the BHW ECU to fire the AllRoad tachometer and HVAC system).
Does anyone have access to the ladder logic for the cruise system? The other thing I would like to know is if there is an "analog" input (or output) pin on the BHW ECU that I could run to the ABS pin?
If someone has any insight I would appreciate it.
Thank you