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Thread: Caddy 2006 MK3 - Looking for advice.

  1. #1
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    Caddy 2006 MK3 - Looking for advice.

    Need advice, I have a 2006 caddy 1.9 TDI MK3 Had it a year and it's never missed a beat, drove it last week to my work, started as usual drove for around 15 mins, then there was a indication of power going, it seemed to clear but 10 minutes later it conked out, AA came out and following errors were found when he plugged into the van.

    P161A glow plug, cylinder 1 Open Circuit
    P161B glow plug, cylinder 2 Open Circuit
    P161C glow plug, cylinder 3 Open Circuit
    P161D glow plug, cylinder 4 Open Circuit
    P1650 CAN data bus Missing msg. From instrument cluster
    P1637 CAN data bus Missing message from electron CEL

    Was towed to garage, sat for a couple of days, was just turning over , then when I tried again it was dead.
    garage say they can't get any error codes up as they can't communicate with ECU, Towed the van back to house, it's completely dead, no light when turning ignition. except the miles and clock for a short period then they go out. Have tried cleaning the ECU with pure alcohol as seen on another forum, but made no difference, have ordered a replacement ECU (its Immo plug n play) will try that in this week, if it turns out that isn't the issue, I am looking for other things I can try to solve this, fuses are all good, could it be a relay? 449 or 460? Wiring all looks okay, so really struggling to find what's causing this.

    Any and all help appreciated.

  2. #2
    Administrator Crasher's Avatar
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    Have you tried charging the battery?
    2003 Skoda Octavia VRS Estate. APR 98RON remap, APR R1 diverter valve, Jetex exhaust, K&N panel filter, 7.5x18 Alutec Monstr wheels with 225/40 18 Uniroyal Rainsport 3 tyres.
    2006 Polo GTI 1.8T, APR 95RON remap
    1988 Golf 2 GTI 16 valve, 2.2 with Weber Alpha injection
    1983 Golf 1 GTI 8 valve, 2 litre with Eurospec racing 42/36 head
    1972 1302LS auto 1641cc conversion

    Vile Invention

    Dark was that day when Diesel conceived his grim engine that begot you, vile invention, more vicious, more criminal than the camera even, metallic monstrosity, bale and bane of our culture, chief woe of our Commonweal. How dare the Law prohibit hashish and heroin yet license your use, who inflate all weak inferior egos? Their addicts only do harm to their own lives: you poison the lungs of the innocent, your din dithers the peaceful, and on choked roads hundreds must daily die by chance-medley. Nimble technicians, surely you should hang your heads in shame. Your wit works mighty wonders, has landed men on the Moon, replaced brains by computers, and can smithy a "smart" bomb. It is a crying scandal that you cannot take the time or be bothered to build us, what sanity knows we need, an odorless and noiseless staid little electric brougham.

    W.H. Auden (1907-1973), A Curse:

  3. #3
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    Quote Originally Posted by Cadbury3 View Post
    Need advice, I have a 2006 caddy 1.9 TDI MK3 Had it a year and it's never missed a beat, drove it last week to my work, started as usual drove for around 15 mins, then there was a indication of power going, it seemed to clear but 10 minutes later it conked out, AA came out and following errors were found when he plugged into the van.

    P161A glow plug, cylinder 1 Open Circuit
    P161B glow plug, cylinder 2 Open Circuit
    P161C glow plug, cylinder 3 Open Circuit
    P161D glow plug, cylinder 4 Open Circuit
    P1650 CAN data bus Missing msg. From instrument cluster
    P1637 CAN data bus Missing message from electron CEL

    Was towed to garage, sat for a couple of days, was just turning over , then when I tried again it was dead.
    garage say they can't get any error codes up as they can't communicate with ECU, Towed the van back to house, it's completely dead, no light when turning ignition. except the miles and clock for a short period then they go out. Have tried cleaning the ECU with pure alcohol as seen on another forum, but made no difference, have ordered a replacement ECU (its Immo plug n play) will try that in this week, if it turns out that isn't the issue, I am looking for other things I can try to solve this, fuses are all good, could it be a relay? 449 or 460? Wiring all looks okay, so really struggling to find what's causing this.

    Any and all help appreciated.

    Yea thanks for that, battery was fully charged and still is, and I'm pretty sure a flat battery wouldn't have coughed up the error codes or caused the van to conk out in the first place. Garage thought it was ECU as they tried to read it with vancom but as it was completely dead they couldn't get anything, as they don't deal with electrical issues they suggested I take it to auto electrical specialist, but hoping I don't have to spend a fortune getting it back up and running. If not ECU I assume it could be wiring, or relay, or possibly grounding issue, but was hoping someone on here would have an idea or have had similar issues and could advise.

    thanks.

  4. #4
    Administrator Keithuk's Avatar
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    First posts normally go in introductions else you could get a free fix and we never see you again!!!

    Your car spec says 0, only what I've added from this post.

    2006 Caddy 1.9 TDI-PD

    P161A glow plug, cylinder 1 Open Circuit
    P161B glow plug, cylinder 2 Open Circuit
    P161C glow plug, cylinder 3 Open Circuit
    P161D glow plug, cylinder 4 Open Circuit
    P1650 CAN data bus Missing msg. From instrument cluster
    P1637 CAN data bus Missing message from electron CEL

    VAG Error Code: 005658
    EOBD II Error Code: P161A

    Fault Location:
    Glow Plug for Cylinder 1 (Q10) - Open Circuit/Upper Limit Exceeded

    Possible Cause:
    Malfunction Indicator Lamp (MIL)(K83) active.
    No Pre-Glow Period.
    Lack/Loss of Power.
    Poor Cold Starting.
    Engine hesitation.

    Fuse(s).
    Glow Plug Wiring/Connector(s) faulty.
    Glow Plug Control Module (GPCM) (J179).
    Glow Plug faulty.

    Possible Solutions:
    Check/Replace Fuse(s).
    Check/Replace all faulty Wiring/Connector(s).
    Read Measuring Value Blocks (MVB).
    Check Glow Plug Wiring.
    Check Glow Plug.

    Special Notes:
    TDIClub Glow Plug 101

    When is the code detected?:
    The Engine Control Module (ECM) has detected a fault in the cylinder #1 glow plug circuit.


    VAG Error Code: 005659
    EOBD II Error Code: P161B

    Fault Location:
    Glow Plug for Cylinder 2 (Q11) - Open Circuit/Upper Limit Exceeded

    Possible Cause:
    Malfunction Indicator Lamp (MIL)(K83) active.
    No Pre-Glow Period.
    Lack/Loss of Power.
    Poor Cold Starting.
    Engine hesitation.

    Fuse(s).
    Glow Plug Wiring/Connector(s) faulty.
    Glow Plug Control Module (GPCM) (J179).
    Glow Plug faulty.

    Possible Solutions:
    Check/Replace Fuse(s).
    Check/Replace all faulty Wiring/Connector(s).
    Read Measuring Value Blocks (MVB).
    Check Glow Plug Control Module (GPCM) (J179).
    Check Glow Plug.

    Special Notes:
    TDIClub Glow Plug 101

    When is the code detected?:
    The Engine Control Module (ECM) has detected a fault in the cylinder #2 glow plug circuit.


    VAG Error Code: 005660/4986
    EOBD II Error Code: P161C

    Fault Location:
    Glow Plug for Cylinder 3 (Q12) - Open Circuit/Upper Limit Exceeded

    Possible Cause:
    Malfunction Indicator Lamp (MIL)(K83) active.
    No Pre-Glow Period.
    Lack/Loss of Power.
    Poor Cold Starting.
    Engine hesitation.

    Fuse(s).
    Glow Plug Wiring/Connector(s) faulty.
    Glow Plug Control Module (GPCM) (J179).
    Glow Plug faulty.

    Possible Solutions:
    Check/Replace Fuse(s).
    Check/Replace all faulty Wiring/Connector(s).
    Read Measuring Value Blocks (MVB).
    Check Glow Plug Wiring.
    Check Glow Plug.

    Special Notes:
    TDIClub Glow Plug 101

    When is the code detected?:
    The Engine Control Module (ECM) has detected a fault in the cylinder #3 glow plug circuit.


    VAG Error Code: 005661
    EOBD II Error Code: P161D

    Fault Location:
    Glow Plug for Cylinder 4 (Q13) - Open Circuit/Upper Limit Exceeded

    Possible Cause:
    Malfunction Indicator Lamp (MIL)(K83) active.
    No Pre-Glow Period.
    Lack/Loss of Power.
    Poor Cold Starting.
    Engine hesitation.

    Fuse(s).
    Glow Plug Wiring/Connector(s) faulty.
    Glow Plug Control Module (GPCM) (J179).
    Glow Plug faulty.

    Possible Solutions:
    Check/Replace Fuse(s).
    Check/Replace all faulty Wiring/Connector(s).
    Read Measuring Value Blocks (MVB).
    Check Glow Plug Wiring.
    Check Glow Plug.

    Special Notes:
    TDIClub Glow Plug 101

    When is the code detected?:
    The Engine Control Module (ECM) has detected a fault in the cylinder #4 glow plug circuit.


    VAG Error Code: 18058/005712
    EOBD II Error Code: P1650

    Fault Location:
    Powertrain Data Bus - Missing Message from Instrument Cluster

    Possible Cause:
    Malfunction Indicator Lamp (MIL)(K83) active.

    Fuse(s).
    Data Bus Wiring/Connector(s) from/to Instrument Cluster (J285) faulty.
    Instrument Cluster (J285) faulty.

    Possible Solutions:
    Check/Replace Fuse(s).
    Check Data Bus Wiring/Connector(s) from/to Instrument Cluster (J285).
    Read Measuring Value Blocks (MVB).
    Check/Replace Instrument Cluster (J285).


    VAG Error Code: 18045/005687
    EOBD II Error Code: P1637

    Fault Location:
    Powertrain Data Bus - Missing Message from Electric Load Controller

    Possible Cause:
    Malfunction Indicator Lamp (MIL)(K83) active.

    Fuse(s).
    Data Bus Wiring/Connector(s) from/to Central Electronics Control Module (CECM) (J519) faulty.
    Central Electronics Control Module (CECM) (J519) faulty.

    Possible Solutions:
    Check/Replace Fuse(s).
    Check Data Bus Wiring/Connector(s) from/to Central Electronics Control Module (CECM) (J519).
    Read Measuring Value Blocks (MVB).
    Check/Replace Central Electronics Control Module (CECM) (J519).


    As taken from my new EOBD II Fault Codes Software
    2010 Golf GTD (170) CBBB, 5 Door, Shadow Blue (P6/D5Q), Transmission Code: KXZ, Flat Tyre Indicator, Basic Protection Pack + VCDS.


  5. #5
    Administrator Crasher's Avatar
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    ECU failure is extremely rare and wiring problems not that common either. Did you get a scan of all the cars systems?
    2003 Skoda Octavia VRS Estate. APR 98RON remap, APR R1 diverter valve, Jetex exhaust, K&N panel filter, 7.5x18 Alutec Monstr wheels with 225/40 18 Uniroyal Rainsport 3 tyres.
    2006 Polo GTI 1.8T, APR 95RON remap
    1988 Golf 2 GTI 16 valve, 2.2 with Weber Alpha injection
    1983 Golf 1 GTI 8 valve, 2 litre with Eurospec racing 42/36 head
    1972 1302LS auto 1641cc conversion

    Vile Invention

    Dark was that day when Diesel conceived his grim engine that begot you, vile invention, more vicious, more criminal than the camera even, metallic monstrosity, bale and bane of our culture, chief woe of our Commonweal. How dare the Law prohibit hashish and heroin yet license your use, who inflate all weak inferior egos? Their addicts only do harm to their own lives: you poison the lungs of the innocent, your din dithers the peaceful, and on choked roads hundreds must daily die by chance-medley. Nimble technicians, surely you should hang your heads in shame. Your wit works mighty wonders, has landed men on the Moon, replaced brains by computers, and can smithy a "smart" bomb. It is a crying scandal that you cannot take the time or be bothered to build us, what sanity knows we need, an odorless and noiseless staid little electric brougham.

    W.H. Auden (1907-1973), A Curse:

  6. #6
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    Thank you for the replies gents, I haven't managed to get a scan of the vans systems yet, the garage it went to initially said they couldn't get the van ecm to communicate with their diagnostic tool, so it's currently sitting in my driveway, so trying to decide if I need to fork out for having it transported to one of the auto electrical repairers as I will need to pay to have it moved there, I was wondering if it was a co-insistence that the day before it broke down, I was checking all my fuses, as I had a faulty 12volt plug and couldn't find the blown fuse, eventually I did find it but was worried I had maybe damaged something with pulling out each fuse and sticking them back in, but they all appear to be okay.

    i had a look for the data can bus gateway, but can't find it, heard it could also be a faulty immobiliser ? Or ignition ? But I am a complete novice when it comes to this.

    Thanks again for the replies and apologies for not posting in the introduction section first.
    will fit the replacement ecm on Wednesday, and see if that does anything, will then have to decide whether to pay a bunch to get it moved to the electrical shop.

    cheers.
    2006 Caddy 1.9 TDI-PD

  7. #7
    Administrator Keithuk's Avatar
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    You need to get your motor scanned (preferably with VAG-COM\VCDS) for any error codes logged in the ecu and post them, that will save a lot of guessing and check systems out.

    Not with a generic scanner.
    2010 Golf GTD (170) CBBB, 5 Door, Shadow Blue (P6/D5Q), Transmission Code: KXZ, Flat Tyre Indicator, Basic Protection Pack + VCDS.


  8. #8
    Administrator Crasher's Avatar
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    The CAN BUS is right up under the facia and the immobiliser which is in the instrument pod, won’t cause problems like this, it only prevents starting.
    2003 Skoda Octavia VRS Estate. APR 98RON remap, APR R1 diverter valve, Jetex exhaust, K&N panel filter, 7.5x18 Alutec Monstr wheels with 225/40 18 Uniroyal Rainsport 3 tyres.
    2006 Polo GTI 1.8T, APR 95RON remap
    1988 Golf 2 GTI 16 valve, 2.2 with Weber Alpha injection
    1983 Golf 1 GTI 8 valve, 2 litre with Eurospec racing 42/36 head
    1972 1302LS auto 1641cc conversion

    Vile Invention

    Dark was that day when Diesel conceived his grim engine that begot you, vile invention, more vicious, more criminal than the camera even, metallic monstrosity, bale and bane of our culture, chief woe of our Commonweal. How dare the Law prohibit hashish and heroin yet license your use, who inflate all weak inferior egos? Their addicts only do harm to their own lives: you poison the lungs of the innocent, your din dithers the peaceful, and on choked roads hundreds must daily die by chance-medley. Nimble technicians, surely you should hang your heads in shame. Your wit works mighty wonders, has landed men on the Moon, replaced brains by computers, and can smithy a "smart" bomb. It is a crying scandal that you cannot take the time or be bothered to build us, what sanity knows we need, an odorless and noiseless staid little electric brougham.

    W.H. Auden (1907-1973), A Curse:

  9. #9
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    Hi!

    Did you find the fault causing this?

    Last week my Caddy got the same faults, still sits in the garage.....

  10. #10
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    Hi MrGG,
    I got the van to an auto electrician, it ended up being a cracked fuse, and a faulty relay. Cost my 200 in all to get back on the road. The relay was up under the steering wheel, and the cracked fuse was why there was no lights what ever on the dash.
    2006 Caddy 1.9 TDI-PD

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