MrKid

So, after replacing my battery, and driving for weeks with no problem, the car went dead on me again. I hooked up my meter, and found that I had a .5 amp draw. After pulling fuse after fuse, I finally got the draw to drop to .07 after pulling number 15. This controls seat/mirror memory, climate control, and navigation.
After the battery died the first time, I noticed the nav control in the console would no longer work. I pulled the plug from the controller, and the draw was still present. I went to the actual nav unit in the rear quarter panel, and the lights were on. I don't have a cd for it, so it's never been used.
I removed the unit, and my draw went back down .07(which is normal).

TLDR:
Would a bad controller cause this drain, or is the nav unit most likely shot? Does anyone have a pin out for the nav/menu controller?

MrKid

Ran a scan today, and along with all the emissions codes, I got this.

Address 35: Centr. Locks Labels: 4B0-962-258.lbl
Part No: 4B0 962 258 J
Component: Central Lock/Alarm D33
Coding: 15885
Shop #: WSC 02335
VCID: 306F00BFF06441BEED-4EEA

3 Faults Found:
00668 - Supply Voltage Terminal 30
07-10 - Signal too Low - Intermittent
01570 - Turn-Off Delay; Terminal 15
28-10 - Short to Plus - Intermittent
01482 - Motors for Central Locking
29-10 - Short to Ground - Intermittent


Is this the same as a bad door lock switch would show. I know at one time time I had a fail to lock code for the right rear door. It's not showing now, though.

Cyfun

I have a very similar problem in my '04 allroad. Battery will drain in a day or two. I'm seeing a good amp of draw over fuses 17 and 15, which are for the suspension leveling system and nav system, I believe. I pull the fuses when I park the car, but it still experiences a slight drain.

After some troubleshooting, I believe that the car is not entering standby mode. They way these cars work, even with ignition off, several electrical systems will stay powered up until the doors all remain closed for 15 minutes, after which it powers down. But I don't think that's happening.

Supposedly the main cause of this problem is the five door contact switches. However, if I turn my ignition on, the red LCD panel says all the doors are closed. And if I open them, the screen will properly reflect that. So now I don't know what to think.

I pulled my codes and among other things, am also getting:
01570 - Turn-Off Delay; Terminal 15
29-10 - Short to Ground - Intermittent

Another possible cause is a faulty comfort control module, which is the box on the driver's floor in front of the seat. If water gets in there, it can muck it up. But mine seems okay.

Are you having any luck?

MrKid

I'm having zero luck. As all my codes are "intermittent", it's obviously harder to track down. I plan on pulling the CCM to check the terminals. I've seen some corrode without being under water. That would explain the lack of sleep mode, and the fact that my auto down window doesn't always work.
I haven't gotten any code in a while from the door switches. I know when I first bought the car, I had the right rear pop up, but it has not returned since clearing it almost a year ago.

Here's the laundry list of codes I currently have:

-------------------------------------------------------------------------------
Address 01: Engine Labels: 078-907-551-AZA.lbl


11 Faults Found:
17861 - Exhaust Gas Temp Sensor 1 (G235)
P1453 - 35-00 - Open or Short to Plus
17831 - Secondary Air Injection System; Bank 1
P1423 - 35-00 - Insufficient Flow
17819 - Secondary Air Injection System; Bank 2
P1411 - 35-00 - Insufficient Flow
17539 - Oxygen (Lambda) Sensor; B2 S1
P1131 - 35-10 - Internal Resistance too High - Intermittent
17866 - Exhaust Gas Temp Sensor 2 (G236)
P1458 - 35-10 - Short to Ground - Intermittent
17870 - Exhaust Gas Temp Regulation for Bank 2
P1462 - 35-10 - Implausible Signal - Intermittent
17887 - Brake Boost Vacuum System
P1479 - 35-10 - Mechanical Failure - Intermittent
17521 - Oxygen (Lambda) Sensor; B1 S1
P1113 - 35-10 - Internal Resistance too High - Intermittent
16487 - Mass Air Flow Sensor (G70)
P0103 - 35-10 - Signal too High - Intermittent
17585 - Bank2: O2 (Lambda) Correction Behind Catalyst
P1177 - 35-10 - Control Limit Reached - Intermittent
18010 - Power Supply Terminal 30
P1602 - 35-10 - Voltage too Low - Intermittent
Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 8D0-907-389.lbl
Part No: 4Z7 907 389
Component: ABS/ESP allrad D47
Coding: 06397
Shop #: WSC 02325
VCID: 09198D5B337E50760A-5140

2 Faults Found:
00287 - ABS Wheel Speed Sensor; Rear Right (G44)
30-10 - Open or Short to Plus - Intermittent
18265 - Load Signal
P1857 - 35-10 - Error Message from ECU - Intermittent

-------------------------------------------------------------------------------
Address 06: Seat Mem. Pass Labels: None
Part No: 4B0 959 760 C
Component: Sitzmemory R1 BF 0101
Coding: 00001
Shop #: WSC 00000
VCID: 2D5119CBE7562C56C6-4B00

1 Fault Found:
00668 - Supply Voltage Terminal 30
07-00 - Signal too Low

-------------------------------------------------------------------------------
Address 17: Instruments Labels: 4B0-920-xxx-17.lbl
Part No: 4Z7 920 980 B
Component: C5-KOMBIINSTR. VDO D13
Coding: 02264
Shop #: WSC 40832
VCID: 43855F7351D2CA2600-5124


2 Faults Found:
01300 - Control Module for Navigation with CD-Rom (J401)
49-00 - No Communications
01311 - Information Data Bus
37-10 - Faulty - Intermittent

-------------------------------------------------------------------------------
Address 34: Level Control Labels: 4Z7-907-553.lbl
Part No: 4Z7 907 553 H
Component: - 2C1A1 D053
Coding: 25500
Shop #: WSC 06158
VCID: 4A9B725776F81B6EC3-5124

3 Faults Found:
01400 - Suspension Level Control
53-10 - Supply Voltage Too Low - Intermittent
01400 - Suspension Level Control
11-10 - Control Limit Not Reached - Intermittent
01316 - ABS Control Module
79-10 - Please Check Fault Codes - Intermittent

-------------------------------------------------------------------------------
Address 35: Centr. Locks Labels: 4B0-962-258.lbl
Part No: 4B0 962 258 J
Component: Central Lock/Alarm D33
Coding: 15885
Shop #: WSC 02335
VCID: 306F00BFF06441BEED-4EEA

3 Faults Found:
00668 - Supply Voltage Terminal 30
07-10 - Signal too Low - Intermittent
01570 - Turn-Off Delay; Terminal 15
28-10 - Short to Plus - Intermittent
01482 - Motors for Central Locking
29-10 - Short to Ground - Intermittent

-------------------------------------------------------------------------------
Address 36: Seat Mem. Drvr Labels: None
Part No: 4B0 959 760 B
Component: Sitzmemory R1 F 0101
Coding: 00001
Shop #: WSC 00000
VCID: 2C5714CFDC4C255ED1-4B00

1 Fault Found:
00668 - Supply Voltage Terminal 30
07-00 - Signal too Low

-------------------------------------------------------------------------------
Address 45: Inter. Monitor Labels: 4B0-951-178.lbl
Part No: 4B0 951 178 A
Component: Innenraumueberw. D04
Coding: 00102
Shop #: WSC 02335
VCID: 2643E6E7C2A01F0E07-5140

2 Faults Found:
01377 - Ultra Sonic Sensor for Alarm System; Left (G170)
27-10 - Implausible Signal - Intermittent
01462 - Anti-theft alarm ultra sonic Sensor (G209)
53-10 - Supply Voltage Too Low - Intermittent

-------------------------------------------------------------------------------
Address 55: Headlight Range Labels: 4Z7-907-357.lbl
Part No: 4Z7 907 357
Component: dynamische LWR D03
Coding: 00030
Shop #: WSC 02335
VCID: 04079C6F145C0D1E79-4B32

2 Faults Found:
01533 - Terminal 56 (High Beams)
36-10 - Open Circuit - Intermittent
00532 - Supply Voltage B+
07-10 - Signal too Low - Intermittent

-------------------------------------------------------------------------------
Address 56: Radio Labels: 8D0-035-1xx-56.lbl
Part No: 4B0 035 195 A
Component: Radio D00
Coding: 00201
Shop #: WSC 00001
VCID: 1E33CE079AF0C7CE4F-4B32

1 Fault Found:
00668 - Supply Voltage Terminal 30
07-10 - Signal too Low - Intermittent


End-------------------------(Elapsed Time: 05:13)--------------------------

Cyfun

My auto-window feature sometimes decides not to work too. But if I start the car, it usually starts working after a few minutes.

In any case, I might have solved my issue. Since I was seeing the most draw from the fuses for instrument cluster and nav, I unhooked the nav system in the trunk. Then I set my multimeter to measure amps, and connected it between the battery's positive and the car's positive. Before unhooking the nav system, the car would draw about .3 to .5 amps even after being locked and the immobilizer activated for 15 minutes. But after unhooking the nav system, as soon as 15 minutes went by, the power draw at my battery dropped to zero.

I let the car sit overnight, and about 20 hours later, it fired right up with no hesitation. Gonna let it sit for a few days to see how it holds up, but I'm keeping my fingers crossed.

MrKid

I did the same. It was fine the next day, dead 2 days later. I'm going to remove my ccm, and see if it that has any corrosion. I really see no need in having it, other then throwing codes.

Cyfun

I wish I knew which wire sent the standy-mode sign. Weeks ago I tried pulling the CCM completely, then shutting all the doors and locking the car. Was dead the next day.

What year is your allroad? Cause according to my fuse diagram, fuse 15 is for the instrument cluster / AC. Do you get anything on #17? Also, are you testing this with the door contact switches triggered? It's kind of a pain cause you have to have the door open to access the fuses.

MrKid

How did the connections look when you pulled the plugs? Any white or green corrosion on them?

I have an '01. I am getting the biggest drop on #17, which controls Nav, seat and mirror memory, and I thought climate control.

Cyfun

The CCM's connections seemed alright. I might go back and check. But I'm in Montucky, where it's far from humid, and we don't see much salt, either.

So is your nav system still unplugged? And are ALL the wires unplugged?

MrKid

My nav is still unplugged, but the ccm is still wired up. I've let it sit for 3 days, and it just fired right up.

I'm trying to see if the dead battery coincides with the horn not beeping sometimes while setting the alarm. That would point me directly to the central locking system, possibly a faulty door switch.

On a side note...looked under both front seats, and saw no module. Different location on '01s?