Engine bay error codes

5.0 V10 50v biturbo - 571 bhp
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c3nturi0n
3rd Gear
Posts: 466
Joined: Tue May 29, 2018 10:50 am

Engine bay error codes

Post by c3nturi0n » Fri Nov 01, 2019 8:31 pm

hi guys,

i have been monitoring my vehicle and have noticed that couple error codes appear on the car every now and then. here is a list and i was wondering if any of you have any thoughts/suggestions what could be the cause?

ps. i recently replaced the main radiator on the car.

Address 01: Engine (BUH) Labels: Redir Fail!
Part No SW: 4F1 910 552 D HW: 4F1 907 552 A
Component: 5.0L V10/4V TFSI ª0080
Revision: F1H05--- Serial number:
Coding: 010D0003190F02B0
Shop #: WSC 66565 257 00032
VCID: 2541171FEC14DD36C75-8070

3 Faults Found:
006481 - Radiator Fan 2 (V177)
P1951 - 002 - Movement Restricted / Jammed - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 2
Fault Frequency: 22
Reset counter: 255
Time Indication: 0
Date: 2019.10.11
Time: 09:36:39

Freeze Frame:
RPM: 1598 /min
Load: 7.8 %
Speed: 40.0 km/h
Temperature: 93.0°C
Temperature: 66.0°C
Absolute Pres.: 1020.0 mbar
Voltage: 14.351 V

001683 - Fan 2 Control Circuit
P0693 - 002 - Short to GND - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 2
Fault Frequency: 3
Reset counter: 255
Time Indication: 0
Date: 2019.10.13
Time: 13:48:18

Freeze Frame:
RPM: 816 /min
Load: 22.7 %
Speed: 12.0 km/h
Temperature: 93.0°C
Temperature: 42.0°C
Absolute Pres.: 1020.0 mbar
Voltage: 14.351 V

006435 - Please Check DTC Memory of ECU Number 2
P1923 - 008 -
Freeze Frame:
Fault Status: 01101000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Time Indication: 0

Freeze Frame:
RPM: 0 /min
Load: 0.0 %
Speed: 0.0 km/h
Temperature: 101.0°C
Temperature: 70.0°C
Absolute Pres.: 1020.0 mbar
Voltage: 11.811 V

Readiness: 0000 0000
2008 RS6 Avant (Monza Silver)
- Stage II MRC tune with gearbox (720PS/850Nm)
- MIJ Powerflow exhaust (non-res)
- H&R ARBs

Stiggles
2nd Gear
Posts: 161
Joined: Mon Mar 20, 2017 6:43 pm

Re: Engine bay error codes

Post by Stiggles » Sat Nov 02, 2019 2:25 am

c3nturi0n wrote:
Fri Nov 01, 2019 8:31 pm
hi guys,

i have been monitoring my vehicle and have noticed that couple error codes appear on the car every now and then. here is a list and i was wondering if any of you have any thoughts/suggestions what could be the cause?

ps. i recently replaced the main radiator on the car.

Address 01: Engine (BUH) Labels: Redir Fail!
Part No SW: 4F1 910 552 D HW: 4F1 907 552 A
Component: 5.0L V10/4V TFSI ª0080
Revision: F1H05--- Serial number:
Coding: 010D0003190F02B0
Shop #: WSC 66565 257 00032
VCID: 2541171FEC14DD36C75-8070

3 Faults Found:
006481 - Radiator Fan 2 (V177)
P1951 - 002 - Movement Restricted / Jammed - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 2
Fault Frequency: 22
Reset counter: 255
Time Indication: 0
Date: 2019.10.11
Time: 09:36:39

Freeze Frame:
RPM: 1598 /min
Load: 7.8 %
Speed: 40.0 km/h
Temperature: 93.0°C
Temperature: 66.0°C
Absolute Pres.: 1020.0 mbar
Voltage: 14.351 V

001683 - Fan 2 Control Circuit
P0693 - 002 - Short to GND - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 2
Fault Frequency: 3
Reset counter: 255
Time Indication: 0
Date: 2019.10.13
Time: 13:48:18

Freeze Frame:
RPM: 816 /min
Load: 22.7 %
Speed: 12.0 km/h
Temperature: 93.0°C
Temperature: 42.0°C
Absolute Pres.: 1020.0 mbar
Voltage: 14.351 V

006435 - Please Check DTC Memory of ECU Number 2
P1923 - 008 -
Freeze Frame:
Fault Status: 01101000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Time Indication: 0

Freeze Frame:
RPM: 0 /min
Load: 0.0 %
Speed: 0.0 km/h
Temperature: 101.0°C
Temperature: 70.0°C
Absolute Pres.: 1020.0 mbar
Voltage: 11.811 V

Readiness: 0000 0000

Looks to me like there's an issue with one of the radiator fans from when the new rad was installed?

That looks to cover code 1 & 2, code 3 refers to needing to scan the second ECU for faults

c3nturi0n
3rd Gear
Posts: 466
Joined: Tue May 29, 2018 10:50 am

Re: Engine bay error codes

Post by c3nturi0n » Mon Nov 04, 2019 12:38 pm

cheers - I'll get in touch with a garage later for them to (re)inspect.

Other than emissions related 'fault' (probably due to lack of mid/rear cat's) i do not get other any codes on Engine Bank 2.

I suppose one question from my side is if the lambda / O2 sensor is faulty or on it's way out, would it cause error listed above? And more importantly, should i be worried :(?

Thanks!
2008 RS6 Avant (Monza Silver)
- Stage II MRC tune with gearbox (720PS/850Nm)
- MIJ Powerflow exhaust (non-res)
- H&R ARBs

Toady1
3rd Gear
Posts: 363
Joined: Mon Jul 10, 2017 2:13 pm

Re: Engine bay error codes

Post by Toady1 » Mon Nov 04, 2019 10:57 pm

Is it not from the fans being disconnected without the battery being disconnected first? It's linked to your work done in my eyes. I'd have the codes reset and check in a few days time that they don't come back.

c3nturi0n
3rd Gear
Posts: 466
Joined: Tue May 29, 2018 10:50 am

Re: Engine bay error codes

Post by c3nturi0n » Tue Nov 05, 2019 2:39 pm

Toady1 wrote:
Mon Nov 04, 2019 10:57 pm
Is it not from the fans being disconnected without the battery being disconnected first?
I doubt that battery was disconnected. Are you suggesting that it may be worth checking the fuse/s?

FYI - I do scan the car periodically (say every 3-4 weeks) and this does indeed come up each time it's done. One other thing that I noticed is that fan is running at relatively high speed/rpm every time i start the car warm (normal operating temp).
2008 RS6 Avant (Monza Silver)
- Stage II MRC tune with gearbox (720PS/850Nm)
- MIJ Powerflow exhaust (non-res)
- H&R ARBs

Toady1
3rd Gear
Posts: 363
Joined: Mon Jul 10, 2017 2:13 pm

Re: Engine bay error codes

Post by Toady1 » Tue Nov 05, 2019 10:02 pm

Does the fan go off when you turn off the A/C?

c3nturi0n
3rd Gear
Posts: 466
Joined: Tue May 29, 2018 10:50 am

Re: Engine bay error codes

Post by c3nturi0n » Wed Nov 06, 2019 12:29 pm

Toady1 wrote:
Tue Nov 05, 2019 10:02 pm
Does the fan go off when you turn off the A/C?
Yes, it does :roll:.

Any suggestions of what could be going wrong / what needs addressing? Assume it has very little with rad work i did recently?
2008 RS6 Avant (Monza Silver)
- Stage II MRC tune with gearbox (720PS/850Nm)
- MIJ Powerflow exhaust (non-res)
- H&R ARBs

Toady1
3rd Gear
Posts: 363
Joined: Mon Jul 10, 2017 2:13 pm

Re: Engine bay error codes

Post by Toady1 » Wed Nov 06, 2019 8:28 pm

It could be signs to the resistors on their way out. This was an issue with mk4 golfs. But it could just be normal. I think mine was always on when the A/C was on.

c3nturi0n
3rd Gear
Posts: 466
Joined: Tue May 29, 2018 10:50 am

Re: Engine bay error codes

Post by c3nturi0n » Wed Nov 06, 2019 9:28 pm

Cheers.

Is that resistors on the actual radiator fan i guess?
2008 RS6 Avant (Monza Silver)
- Stage II MRC tune with gearbox (720PS/850Nm)
- MIJ Powerflow exhaust (non-res)
- H&R ARBs

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