Allroad 2.7 Reverse Lights On In Forward Gear

[Audibot]

Hi, my buddy has an 02 Allroad 6MT, and has been having some issues. He noticed his lights had flickered while driving; however, more recently, he noticed that while driving forward, the reverse lights would come on, the parking sensors would start beeping, and the passenger mirror would dip as in reverse. I pulled the codes using VCDS. I'm thinking a short somewhere, judging by the number of intermittent or implausible signals. I have no idea where to look though. Thoughts?



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Address 01: Engine Labels: 078-907-551-AZA.lbl
Part No: 4Z7 907 551 L
Component: 2.7l V6/5VT G 0001
Coding: 06712
Shop #: WSC 13622
VCID: 4C9961517C9C4B7E38B-5102
WA1YD64B82N104323 AUZ7Z0B2038504

8 Faults Found:
17861 - Exhaust Gas Temp Sensor 1 (G235)
P1453 - 35-10 - Open or Short to Plus - Intermittent
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 35-00 -
16685 - Cylinder 1
P0301 - 35-10 - Misfire Detected - Intermittent
16686 - Cylinder 2
P0302 - 35-00 - Misfire Detected
17867 - Exhaust Gas Temp Sensor 2 (G236)
P1459 - 35-10 - Implausible Signal - Intermittent
16687 - Cylinder 3
P0303 - 35-00 - Misfire Detected
17748 - Camshaft Position Sensor (G40) / Engine Speed Sensor (G28)
P1340 - 35-10 - Incor. Correlation - Intermittent
18010 - Power Supply Terminal 30
P1602 - 35-10 - Voltage too Low - Intermittent
Readiness: 0000 0000

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Address 03: ABS Brakes Labels: 8D0-907-389.lbl
Part No: 4Z7 907 389 A
Component: ABS/ESP allrad D55
Coding: 06495
Shop #: WSC 00000
VCID: 4A95674976E8554E0A7-5102

No fault code found.

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Address 06: Seat Mem. Pass Labels: None
Part No: 4B0 959 760 C
Component: Sitzmemory R1 BF 0102
Coding: 00003
Shop #: WSC 00000
VCID: 2D5F0CD5E74662760F5-4ACE

No fault code found.

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Address 08: Auto HVAC Labels: 4B0-820-043-MY2.lbl
Part No: 4B0 820 043 AD
Component: A6-Klimavollautomat 0105
Coding: 00010
Shop #: WSC 02325
VCID: 5CB99111CC7CDBFEA8B-2560

1 Fault Found:
01592 - Air Quality Sensor (G238)
37-00 - Faulty

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Address 15: Airbags Labels: 4B0-959-655-AI84.lbl
Part No: 4Z7 959 655 E
Component: Airbag 8.4E 5000
Coding: 0000307
Shop #: WSC 02314 785 00200
VCID: 51A77025CBBE66964BD-5102

No fault code found.

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Address 16: Steering wheel Labels: 4B0-907-487.lbl
Part No: 4B0 907 487 F
Component: Lenkradelektronik D01
Coding: 01002
Shop #: WSC 02335
VCID: 2F6316DDED4A10663D9-51D0

2 Faults Found:
01426 - Controls in Steering Wheel (E221)
41-10 - Blocked or No Voltage - Intermittent
01304 - Radio
49-00 - No Communications

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Address 17: Instruments Labels: 4B0-920-xxx-17.lbl
Part No: 4B0 920 981 P
Component: KOMBI+WEGFAHRS. VDO D10
Coding: 04264
Shop #: WSC 02219
VCID: 336B1AAD01623486591-5102
WA1YD64B82N104323 AUZ7Z0B2038504

1 Fault Found:
01304 - Radio
49-00 - No Communications

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Address 34: Level Control Labels: 4Z7-907-553.lbl
Part No: 4Z7 907 553 E
Component: - 2C1A1 D040
Coding: 25500
Shop #: WSC 09999
VCID: 47935E7D65FAA826159-5102

1 Fault Found:
01400 - Suspension Level Control
53-10 - Supply Voltage Too Low - Intermittent

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Address 35: Centr. Locks Labels: 4B0-962-258.lbl
Part No: 4B0 962 258 J
Component: Central Lock/Alarm D35
Coding: 15949
Shop #: WSC 02335
VCID: 306115A1F0740F9E243-4EB0

3 Faults Found:
01370 - Alarm triggered by Interior Monitoring
35-00 - -
01561 - Rear Left Door
59-00 - Can't Unlock
01562 - Rear Right Door
59-00 - Can't Unlock

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Address 36: Seat Mem. Drvr Labels: None
Part No: 4B0 959 760 B
Component: Sitzmemory R1 F 0101
Coding: 00001
Shop #: WSC 00000
VCID: 2C5901D1DC5C6B7E18B-4AB4

1 Fault Found:
01445 - Sensor for Driver Seat Fore/Aft (G227)
36-00 - Open Circuit

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Address 45: Inter. Monitor Labels: 4B0-951-178.lbl
Part No: 4B0 951 178 A
Component: Innenraumueberw. D04
Coding: 00102
Shop #: WSC 02335
VCID: 264DF3F9C2B0512ECEF-5120

No fault code found.

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Address 55: Xenon Range Labels: 4Z7-907-357.lbl
Part No: 4Z7 907 357
Component: dynamische LWR D07
Coding: 00060
Shop #: WSC 02335
VCID: 04098971144C433EB0B-4B32

No fault code found.

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Address 56: Radio Labels: 8E0-035-1xx-56.lbl
Part No: 4B0 035 195 J
Component: symphony II NP2 0008
Coding: 14201
Shop #: WSC 00000
VCID: 2753FEFDC5BA4826F59-4E78

2 Faults Found:
00858 - Connection; Radio Intermediate Frequency (IF) Output to Antenna Amplifier
44-10 - Short Circuit - Intermittent
01336 - Data Bus for Comfort System
49-00 - No Communications

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Address 65: Tire Pressure Labels: 4D0-907-273.lbl
Part No: 4D0 907 273 A
Component: Reifendruckueberw. D110
Coding: 22307
Shop #: WSC 02325
VCID: 254FF4F5BFB65A36C75-5102

1 Fault Found:
01477 - System Switched Off
35-00 - -

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Address 76: Park Assist Labels: 8Z0-919-283.lbl
Part No: 8Z0 919 283
Component: Parkingsyst. A6 RDW D08
Coding: 00186
Shop #: WSC 02335
VCID: 02058F690E584D0E827-5102

1 Fault Found:
01550 - Signal for Reverse Gear
27-10 - Implausible Signal - Intermittent

End ---------------------------------------------------------------------

[A62TURBO]

Could be a faulty reverse switch on the trans.

[Audibot]

Do you think the switch is related or mutually exclusive to the other voltage/intermittent issues that seem to be occurring as well. I seem to recall reading something about being a bad ground somewhere, but can't seem to find it

[ENDEE666]

Reverse switch or maybe some water got on something. That would trigger lights and mirror.

[Audibot]

Where is the Reverse switch on the transmission? Visible from above? Also, found some darkening around one of the grounds.

http://i325.photobucket.com/albums/k371/matt_hobbs/2013-12-06_zps4fcec7dd.jpg

On the hunt for more.

[ENDEE666]

Think it's by the shifter, but I might be wrong

[Audibot]

Thanks. I'll check it out and get back.