gearbox isolator switch??????

**a25c** · 15-10-2009,09:03 PM

I have a 2000 allroad 2.7t with tiptronic gearbox,after driving to work this morning I needed to move the car but the car failed to start.After numerous attempts I eventually got it started by slamming the gear selector up and down through the gears and eventually it started,am I right in thinking there is a safety switch to stop the car being started in D,R or gears 2,3,4 and that this could be faulty?

**kenney** · 15-10-2009,11:06 PM

The starter inhibitor and reversing light relay receives information from the multi-function switch

**lonky** · 15-10-2009,11:06 PM

the switch in question stops the engine turning over. If it was spining then that's not the fault.

**a25c** · 16-10-2009,06:29 PM

The engine does not turn over.........where is the inhibitor switch located?How could I recognise it?

**kenney** · 16-10-2009,06:38 PM

Since the engine started after you juggled with the gear selector i'am inclined to think the fault is with the multi-function switch.A fault code read might verify this.I beleive the relay is in position 4 on the relay-box

**Peter D** · 16-10-2009,06:55 PM

The multi function switch is on the side of the gearbox. Regards Peter

**a25c** · 16-10-2009,07:15 PM

I failed to get the car started this morning....
I am new to Vag com but have just scanned the car VCDS Version: Release 908.0
Data version: 20090911

Friday,16,October,2009,19:03:55:59214

Chassis Type: 4B - Audi A6 C5
Scan: 01 02 03 06 08 15 16 17 18 34 35 36 37 45 55 56 57 65 67 75
76 77

VIN: WAUZZZ4BZ1N001702
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Address 01: Engine Labels: 078-907-551-AZA.lbl
Part No: 4Z7 907 551 C
Component: 2.7l V6/5VT G 0003
Coding: 10752
Shop #: WSC 66565
WAUZZZ4BZ1N001702 AUZ7Z0Y1405303

1 Fault Found:
16955 - Brake Switch (F): Implausible Signal
P0571 - 35-10 - - - Intermittent
Readiness: 0000 0000

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Address 02: Auto Trans Labels: 01V-927-156.lbl
Part No: 4Z7 927 156
Component: AG5 01V 2.7l5VT RdW 3535
Coding: 00001
Shop #: WSC 00000

No fault code found.

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Address 03: ABS Brakes Labels: 8D0-907-389.lbl
Part No: 4Z7 907 389
Component: ABS/ESP allrad D36
Coding: 06397
Shop #: WSC 02325

No fault code found.

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Address 08: Auto HVAC Labels: 4B0-820-043-MY1.lbl
Part No: 4B0 820 043 L
Component: A6-Klimavollautomat D64
Coding: 00061
Shop #: WSC 00000

2 Faults Found:
01809 - Actuating Motor for Temperature Flap; Left (V158)
41-10 - Blocked or No Voltage - Intermittent
01841 - Potentiometer/Actuator for Temperature Flap; Left (G220)
30-10 - Open or Short to Plus - Intermittent

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Address 15: Airbags Labels: 4B0-959-655-AI8.lbl
Part No: 4Z7 959 655
Component: Airbag Front+Seite 1000
Coding: 01106
Shop #: WSC 02325

No fault code found.

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Address 17: Instruments Labels: 4B0-920-xxx-17.lbl
Part No: 4Z7 920 980
Component: C5-KOMBIINSTR. VDO D06
Coding: 00464
Shop #: WSC 00518
WAUZZZ4BZ1N001702 AUZ7Z0Y1405303

1 Fault Found:
01310 - Level Control System Control Module (J197)
49-10 - No Communications - Intermittent

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Address 34: Level Control Labels: 4Z7-907-553.lbl
Part No: 4Z7 907 553 A
Component: - 2C1A1 X030
Coding: 25500
Shop #: WSC 00518

No fault code found.

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Address 35: Centr. Locks Labels: 4B0-962-258.lbl
Part No: 4B0 962 258 H
Component: Central Lock/Alarm D33
Coding: 04846
Shop #: WSC 00000

No fault code found.

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Address 36: Seat Mem. Drvr Labels: None
Part No: 4B0 959 760 A
Component: Sitzmemory D05

No fault code found.

-------------------------------------------------------------------------------
Address 37: Navigation Labels: Redir Fail!
Part No: 4B0 035 192 F
Component: Navigation BNO 0001

No fault code found.

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Address 45: Inter. Monitor Labels: 4B0-951-173.lbl
Part No: 4B0 951 173
Component: Innenraumueberw. D03
Coding: 00002
Shop #: WSC 00000

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 D03
Coding: 00030
Shop #: WSC 00000

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio Labels: Redir Fail!
Part No: 4B0 035 192 F
Component: Radio BNO 0001
Coding: 00017
Shop #: WSC 00000

No fault code found.

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Address 76: Park Assist Labels: 8E0-919-283-8E2.lbl
Part No: 8E0 919 283
Component: Parkingsyst. A6 RDW D01
Coding: 01186
Shop #: WSC 00000

1 Fault Found:
01317 - Control Module in Instrument Cluster (J285)
49-10 - No Communications - Intermittent

End ---------------------------------------------------------------------
returned the following faults..
The brake switch fault is new as It wasn't there last night when I scanned the car,I have just checked the brake lights and they are working!

**kenney** · 16-10-2009,08:19 PM

The fault is pre-set when the ignition is switched on and will be erased when the brake pedal is pressed once, provided that brake light switch -F- is OK You can check the multfunction switch in measured block values address 02 group 004 and display zone 2 and 3 you may need a chart which i can not post so i need your e-mail addreww