newbie issue with 2003 audi a4 multitronic p1626 issues

   #1  

starkie

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hi folks just bought a ross tech lead after mucking about with bluetooth units for a few years. i have bought a 2003 tdi multitronic a4 (uk car) thats having gearbox issues (surprise surprise ) i have no service history with it but once communicating will oil and filter change the box.
my lead is not having any luck in communicating with the gearbox at all and this inability to talk to the tcu is causing a multitude of faults with various systems. i have found the ecu that is under the scuttle panel on left hand side of the car appears dry but the relays underneath it were all wet as was the wiring.
i have removed the relays and took the covers off them to make sure there is no internal damage to them and have allowed them to dry out.
i am going to look for the fuse for the tcu (in the passenger side fuse panel ? if i am correct )
any other suggestions of what to look for and or ideas would be greatly appreciated and i have included what vcds fault sheet some of these might clear easily as the battery was dead due to fan sometimes coming on when car locked ?
other than that the cars great and once these electrical faults are dealt with will be nice car as body work etc etc all good

Code:
Saturday,02,July,2016,18:52:48:44553
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x64
VCDS Version: 15.7.4.1 (x64)
Data version: 20160216
[url]www.Ross-Tech.com[/url]


VIN: WAUZZZ8E84A046688   License Plate: ML53ORH
Mileage: 187230km-116339mi   Repair Order: 



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Chassis Type: 8E (8E - Audi A4/S4/RS4 B6/B7 (2001 > 2008))
Scan: 01 02 03 08 09 0F 11 15 16 17 18 25 36 37 45 46 55 56 57 65
          67 69 75 76 77
 
VIN: WAUZZZ8E84A046688   Mileage: 187230km-116339miles
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 038-906-019-AVF.lbl
   Part No: 038 906 019 LJ
   Component: 1,9l R4 EDC 0000AG  4910  
   Coding: 00001
   Shop #: WSC 63351  
   VCID: 6ADBBA4F16D1E06EC0-4AE8
   WAUZZZ8E84A046688     AUZ6Z0C0205287

3 Faults Found:
18034 - Powertrain Data Bus 
            P1626 - 35-00 - Missing Message from TCU
17994 - Engine Mount Solenoid Valves (N144/N145) 
            P1586 - 35-10 - Short to Plus - Intermittent
18080 - Coolant Fan Control 1 
            P1672 - 35-00 - Open or Short to Ground
Readiness: 1 1 0 0 1 

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 8E0-614-517.lbl
   Part No: 8E0 614 517 
   Component: ABS/ESP front       3429  
   Coding: 04259
   Shop #: WSC 06435  
   VCID: 65C1C973FFCFCF16ED-5140

3 Faults Found:
01826 - Sensor for Steering Angle (G85); Supply Voltage Terminal 30 
            35-00 -  - 
18034 - Powertrain Data Bus 
            P1626 - 35-00 - Missing Message from TCU
18055 - Check Coding of ECUs on Powertrain Data Bus 
            P1647 - 35-00 - 

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 8E0-820-043.lbl
   Part No: 8E0 820 043 AA
   Component:   A4 Klimaautomat   1219  
   Coding: 00000
   Shop #: WSC 63351  
   VCID: 60CFD867E0EDAA3E1E-5140

3 Faults Found:
00819 - High Pressure Sensor (G65) 
            30-00 - Open or Short to Plus
01330 - Central Control Module for Central Convenience (J393) 
            49-10 - No Communications - Intermittent
01206 - Signal for Duration of Ignition Off Time 
            27-00 - Implausible Signal

-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels: 8E0-907-279-8E2.lbl
   Part No: 8E0 907 279 E
   Component: int. Lastmodul  RDW 0305  
   Coding: 00001
   Shop #: WSC 00000  
   VCID: 346764370495669EAA-4B00

1 Fault Found:
00532 - Supply Voltage B+ 
            53-10 - Supply Voltage Too Low - Intermittent

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 8E0-959-655-84.lbl
   Part No: 8E0 959 655 B
   Component: Airbag 8.4EP        3002  
   Coding: 0010602
   Shop #: WSC 63351 000 00000
   VCID: 36635E3F42E9748E94-515E

1 Fault Found:
00532 - Supply Voltage B+ 
            002 - Lower Limit Exceeded - Intermittent

-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 8E0-953-549.lbl
   Part No: 8E0 953 549 F
   Component: Lenksáulenmodul     0308  
   Coding: 01011
   Shop #: WSC 63351  
   VCID: 36635E3F12E9748E94-4B00

1 Fault Found:
00532 - Supply Voltage B+ 
            53-10 - Supply Voltage Too Low - Intermittent

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 8E0-920-9xx-8E2.lbl
   Part No: 8E0 920 950 J
   Component: KOMBI+WEGFAHRS. RB4 D36  
   Coding: 00400
   Shop #: WSC 00048  
   VCID: 306F6827F08D5ABECE-5140
   WAUZZZ8E84A046688     AUZ6Z0C0205287

5 Faults Found:
01039 - Coolant Temperature Sensor (G2) 
            30-10 - Open or Short to Plus - Intermittent
00668 - Supply Voltage Terminal 30 
            53-10 - Supply Voltage Too Low - Intermittent
01315 - Transmission Control Module 
            49-00 - No Communications
01316 - ABS Control Module 
            49-10 - No Communications - Intermittent
01330 - Central Control Module for Central Convenience (J393) 
            49-10 - No Communications - Intermittent

-------------------------------------------------------------------------------
Address 45: Inter. Monitor        Labels: 8E0-951-177.lbl
   Part No: 8E0 951 177 
   Component: Innenraumueberw.   0604  
   Coding: 00001
   Shop #: WSC 00000  
   VCID: 6BD5BF4B192BF966BB-5140

1 Fault Found:
01462 - Anti-theft alarm ultra sonic Sensor (G209) 
            53-00 - Supply Voltage Too Low

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels: 8E0-959-433-MAX.lbl
   Part No: 8E0 959 433 BC
   Component: Komfortgerát T3B    1311  
   Coding: 06859
   Shop #: WSC 63351  
   VCID: 73E5A72B411B21A673-4B00

   Subsystem 1 - Part No: 8E2959802B
   Component: Tõrsteuer.FS BRM 0003  

   Subsystem 2 - Part No: 8E2959801B
   Component: Tõrsteuer.BF BRM 0003  

   Subsystem 3 - Part No: 8E0959801A
   Component: Tõrsteuer.HL BRM 0003  

   Subsystem 4 - Part No: 8E0959802A
   Component: Tõrsteuer.HR BRM 0003  

10 Faults Found:
01330 - Central Control Module for Central Convenience (J393) 
            53-10 - Supply Voltage Too Low - Intermittent
01134 - Alarm Horn (H12) 
            29-10 - Short to Ground - Intermittent
01134 - Alarm Horn (H12) 
            49-00 - No Communications
01616 - Signal Wire to Interior Monitor 
            49-10 - No Communications - Intermittent
00956 - Key 2 
            35-00 -  - 
01331 - Door Control Module; Driver Side (J386) 
            53-10 - Supply Voltage Too Low - Intermittent
01332 - Door Control Module; Passenger Side (J387) 
            53-10 - Supply Voltage Too Low - Intermittent
01561 - Rear left door 
            61-10 - Won't De-Safe - Intermittent
01333 - Door Control Module; Rear Left (J388) 
            53-10 - Supply Voltage Too Low - Intermittent
01334 - Door Control Module; Rear Right (J389) 
            53-10 - Supply Voltage Too Low - Intermittent
 
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   #2  

Uwe

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Given that both the ECU and the ABS module both have faults stating that they can't talk to the TCU either, I'd say chances are good that the TCU is out to lunch. Whether that's due to an internal fault in the 13 year old TCU or some external problem such as lack of power or wiring issues is rather difficult to ascertain remotely, but I'm reasonably confident it isn't a fault with VCDS or your HEX+CAN interface. ;)

I would indeed go through and clear fault codes in every module, then cycle the key, start the car, and see what comes back.

-Uwe-
 
   #3  

starkie

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Is the tcu the ecu that's in the scuttle panel or the one at the gearbox
 
   #4  

Uwe

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On the 01J Multitronic, the TCU is is part of the "Mechatronic" bolted right into the transmission.

-Uwe-
 
   #5  

starkie

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Are these extremely difficult to open solder and reseal or best to pay to have done I am mechanical engineer and work with industrial sparkies so can turn hand to most jobs or have done
 
   #6  

starkie

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Other thing I have read is one of the 4 relays that are in scuttle panel and got wet is for the ecu so will check it's operation as that might not allow power to the ecu
 
   #7  

starkie

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anyone repaired the ecu one of these themselves ?
 
   #8  

starkie

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what i have also discovered is the prds lights are not on at the dash so this might be that the ecu side of things is not getting powered up does anyone know where i can get wiring diagrams for these cars.
i have opened the relay 219 (due to the area getting wet) and cleaned all the contacts and tried on a battery to make sure its working will clean all the spade connections and see if the unit gets power now but failing that i will have to trace the wiring
 
   #10  

starkie

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could the engine ecu coding being at 000001 be an issue ?
 
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