VW Caddy 2010 1.6 tdi - no crank no start no glow plug light

**nedcom** · 01-04-2024,04:25 PM

Hi all, sorry first post to the Forum, after some advice with a 2010 caddy 1.6tdi suffering no crank no start symptoms. the glow plug light is not visable when the ignition is on and if trying normally the van will not start or crank at all.

traced some of the symptons of this issue out to be around relay 100 in teh engine bay fuse board. but beleive this is presenting as a silution but instead should help me pointt o teh sympton but im a little lost now.

should the supply to this relay be readable across the relevant terminals for the relay supply? if i link out the load side of the relay the fuel pump whirls into action and the van will at least crank however with no start and stil no glow plug lights.

would anybody have any sensible alternative sugestions to help diagnose this issue please?
if testing with vcds i get communciation faults but i think these are all due to a no supply issue>

Have run through with VCDS and get the messaging below

Code:

Monday,01,April,2024,15:23:57:34771
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 23.11.0.0 (x64)  HEX-V2 CB: 0.4643.4
Data version: 20240205 DS351.0
Ross-Tech: Home




VIN: WV1ZZZ2KZBX219762   License Plate: 
Mileage: 84870km-52735mi   Repair Order: 






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




Chassis Type: 2K-VN35 (7N0)
Scan: 01 03 09 15 16 17 19 25 42 44 46 52 56


VIN: WV1ZZZ2KZBX219762   Mileage: 84870km-52735miles


01-Engine -- Status: Cannot be reached 1100
03-ABS Brakes -- Status: Malfunction 0010
04-Steering Angle -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: Malfunction 0010
19-CAN Gateway -- Status: Malfunction 0010
25-Immobilizer -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: Malfunction 0010
46-Central Conv. -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
56-Radio -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine
Cannot be reached


-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels:. 1K0-907-379-60EC1F.clb
   Part No SW: 1K0 907 379 BD    HW: 1K0 907 379 BD
   Component: ESP MK60EC1   H31 0108  
   Revision: 00H31001    
   Coding: 433C400D09230303C21202EA901BC081300000
   Shop #: WSC 35110 377 08192
   VCID: 75B7F178B5C94B920C5-8020


2 Faults Found:
00668 - Supply Voltage Terminal 30 
            001 - Upper Limit Exceeded - Intermittent
             Freeze Frame:
                    Fault Status: 00100001
                    Fault Priority: 1
                    Fault Frequency: 1
                    Reset counter: 198
                    Mileage: 84787 km
                    Time Indication: 0
                    Date: 2018.08.23
                    Time: 00:00:50


             Freeze Frame:
                    Count: 0
                    Count: 2
                    Count: 12800
                    Count: 129
                    Count: 52224
                    Count: 0
                    Count: 0
                    Count: 0


01314 - Engine Control Module 
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 163
                    Mileage: 84876 km
                    Time Indication: 0
                    Date: 2018.08.23
                    Time: 00:04:41


             Freeze Frame:
                    Count: 0
                    Count: 32768
                    Count: 4608
                    Count: 8194
                    Count: 52737
                    Count: 0
                    Count: 65280
                    Count: 0




-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 1K0-937-08x-09.clb
   Part No SW: 2K5 937 085     HW: 2K5 937 085 
   Component: BCM PQ35 B+   011 1044  
   Revision: BB011001    
   Coding: 401A583A8025186A088000829000006443017288524F0160648000000040
   Shop #: WSC 35110 377 08192
   VCID: 72BDCA64C4A75CAA297-8026


   Subsystem 1 - Part No: 1T2 955 119   Labels: 1KX-955-119.CLB
   Component: Wischer 22091  26  0512 
   Coding: 009795


No fault code found.


-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 5K0-959-655.clb
   Part No SW: 7E0 959 655 B    HW: 7E0 959 655 B
   Component: VW10Airbag00U H06 0013  
   Revision: --------    Serial number: 003HL001MPSV Dataset Number: 2KC003v____ 0221
   Coding: 000000000000000000000000000000003055
   Shop #: WSC 35110 790 50316
   ASAM Dataset: EV_AirbaVW10BPAVN750 A01026
   ROD: EV_AirbaVW10BPAVN750.rod
   VCID: 35373178F5C90B92CC5-8060


No fault code found.


-------------------------------------------------------------------------------
Address 16: Steering wheel (J527)       Labels:| 5K0-953-569.clb
   Part No SW: 5K0 953 507 AR    HW: 5K0 953 549 C
   Component: Lenks.Modul   007 0080  
   Revision: --------    Serial number:  90440JIT000AD Dataset Number: 5K0953507AR D005
   Coding: 1080060000
   Shop #: WSC 35110 790 50316
   ASAM Dataset: EV_SMLSNGKUDS A05001
   ROD: EV_SMLSNGKUDS_A05.rod
   VCID: 005990ACFA8B7E3A2F3-8054


No fault code found.


-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:| 5K0-920-xxx-17.clb-SRI1
   Part No SW: 2K0 920 965 A    HW: 2K0 920 965 A
   Component: KOMBI         H04 0404  
   Serial number: 00000000000000
   Coding: 480000
   Shop #: WSC 35110 790 50316
   ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04086
   ROD: EV_Kombi_UDS_VDD_RM09_004_VW32.rod
   VCID: 2D0719181D994352B45-8078


1 Fault Found:
12648448 - Function Restricted due to Missing Message(s) 
          U1111 00 [00001001] - -
          [Steuergerät für Motor: keine Kommunikation]
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 163
                    Mileage: 84877 km
                    Date: 2024.04.01
                    Time: 00:22:12




-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels:. 7N0-907-530-V1.clb
   Part No SW: 7N0 907 530     HW: 1K0 907 951 
   Component: J533  Gateway   H27 5603  
   Revision:   H27       Serial number: 230910F1001322
   Coding: E9801F0200020200007401
   Shop #: WSC 35110 377 08192
   VCID: 6D87D918D1998352F45-8038


1 Fault Found:
01314 - Engine Control Module 
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 163
                    Mileage: 84877 km
                    Time Indication: 0
                    Date: 2018.08.23
                    Time: 00:22:14




-------------------------------------------------------------------------------
Address 25: Immobilizer (J334)       Labels:| 5K0-920-xxx-25.clb
   Part No SW: 5K0 953 234     HW: 5K0 953 234 
   Component: IMMO          H04 0404  
   Serial number: 00000000000000
   Coding: 000000
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03008
   ROD: EV_Immo_UDS_VDD_RM09_VW21.rod
   VCID: 6A8DD204ECF7946A917-803E


No fault code found.


-------------------------------------------------------------------------------
Address 42: Door Elect, Driver        Labels:. 1K0-959-701-MIN3.clb
   Part No SW: 1T0 959 701 T    HW: 1T0 959 701 T
   Component: Tuer-SG         009 2110  
   Coding: 0000560
   Shop #: WSC 35110 377 08192
   VCID: 48C9488C9EBB867AA73-801C


No fault code found.


-------------------------------------------------------------------------------
Address 44: Steering Assist        Labels: 1K0-909-14x-GEN3.clb
   Part No: 1K0 909 144 J
   Component: EPS_ZFLS Kl. 140    3001  
   Revision: 00H17000    
   Shop #: WSC 35110 377 08192
   VCID: 313F05680D2127B290D-8064


2 Faults Found:
03803 - Steering Angle Sensor for Steering Aid 
            000 - - - MIL ON
             Freeze Frame:
                    Fault Status: 11100000
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 84877 km
                    Time Indication: 0
                    Date: 2018.08.23
                    Time: 00:22:12


             Freeze Frame:
                    Battery Volts: 11.5 V
                        DU
                    Temperature: 20.0°C
                    Count: 2
                    Steering Angle: 0.00°
                    Count: 0
                        SteerAng n.Init


01314 - Engine Control Module 
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 163
                    Mileage: 84877 km
                    Time Indication: 0
                    Date: 2018.08.23
                    Time: 00:22:12


             Freeze Frame:
                    Voltage: 11.50 V
                        DU
                    Temperature: 20.0°C
                    RPM: 1498 /min
                    Speed: 0.0 km/h
                    Speed: 0.0 km/h
                    Count: 0




-------------------------------------------------------------------------------
Address 52: Door Elect, Pass.        Labels:. 1K0-959-702-MIN3.clb
   Part No SW: 1T0 959 702 R    HW: 1T0 959 702 R
   Component: Tuer-SG         009 2110  
   Coding: 0000560
   Shop #: WSC 35110 377 08192
   VCID: 47CB4BB093A58902AE9-8012


No fault code found.


-------------------------------------------------------------------------------
Address 56: Radio (J503)       Labels:. 5M0-035-1xx-56.clb
   Part No SW: 5K0 035 156     HW: 5K0 035 156 
   Component: Radio         H30 0072  
   Revision: R0000000    Serial number: VWZAZ1K0646962
   Coding: 0500020001
   Shop #: WSC 35110 377 08192
   VCID: 6491BC3C0E53C21AABB-8030


No fault code found.


End----(Elapsed Time: 00:47, VBatt start/end: 11.6V/11.5V. VIgn 11.5V)-----

**Crasher** · 02-04-2024,01:01 PM

There is no power to the engine ECU and someone has had a battery charger on it running at too high a voltage but the power to the ECU failed first so it probably isn’t over voltage damaged. It is possibly the ECU relay number 100 (part number 1K0 906 381) and I would use a relay tester to see if it works then bridge out the terminals corresponding to the relay pins 30 and 87 to see if the engine ran. The relay receives a command from the body control module (from memory it is an earth command permanent live) which itself receives a digital command from the steering column electrics in response to the ignition switch position.