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Thread: Abs and vaps

  1. #1
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    Abs and vaps

    After 2.5 years my ABS-Module from my Marauder 2003 the second time defective.
    The first time i had several DTC´s and the TC, the yellow ABS and the TC switch was glowing.
    After replace of the module, everything was okay. But since two days the yellow ABS indicator and the TC indicator illuminate again, but w/o the traction control switch. I connect the car with an IDS and get the DTC C1300 (ABS Pump Motor Circuit Failure) and C1897 (VAPS circuit failure).
    Can that be true, that i need after 30 Month the second module? It is dry sand no corrosion at the pins. In different Forums, i read that the VAPS get power from ABS Module, about the VSS.
    Can someone help me? I don´t want to change the module again, it is very expensive!!!!!
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  2. #2
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    An alternative is a company called Module masters here in the states, $200 and shipping, and a 5 year warranty.

    I have had luck with the connectors having oxidation on them before, a little de-ox and they were working again. I am not 100% sure if the VAPS gets it's power from the ABS, I would need to research that, but I would say no, I believe it is on a separate circuit.

    I would start with checking all connections, verifying power and ground to the circuits with a DVOM, then proceed from there, if both quit at the same time, I would lean towards a chafed wire or a bad power/ground circuit.
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  3. #3
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    company callused module sounds good. can you gimme a homepage or address, please?
    Marauder 300A from 2003, one of two in Germany!
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  4. #4
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    Quote Originally Posted by Coupe View Post
    company callused module sounds good. can you gimme a homepage or address, please?
    I believe this is the place Darrin is talking about:

    http://www.modulemaster.com/en/index.php

  5. #5
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    unfortunately there isn´t Mercury in the list!
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  6. #6
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    Quote Originally Posted by Spectragod View Post
    An alternative is a company called Module masters here in the states, $200 and shipping, and a 5 year warranty.

    I have had luck with the connectors having oxidation on them before, a little de-ox and they were working again. I am not 100% sure if the VAPS gets it's power from the ABS, I would need to research that, but I would say no, I believe it is on a separate circuit.

    I would start with checking all connections, verifying power and ground to the circuits with a DVOM, then proceed from there, if both quit at the same time, I would lean towards a chafed wire or a bad power/ground circuit.
    What is a DVOM ?
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  7. #7
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    Quote Originally Posted by burt ragio View Post
    What is a DVOM ?
    Brought to you from Wiki...

    http://en.wikipedia.org/wiki/Multimeter



    Mike.

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    Quote Originally Posted by Coupe View Post
    unfortunately there isn´t Mercury in the list!
    They are not on the list, you need to call or email them, they WILL rebuild your module. I had them do a couple for me that "weren't on the list".

    Good luck. I would seriously look for voltage or ground faults before changing parts.
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    When you are dead, you don’t know you are dead. It is difficult only for others. It is the same way when you are stupid.

    "Chuck Norris built my stock longblock. It runs on the tears of small children and makes 10,000 hp. He said it's his 'street version' "


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  9. #9
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    VAPS is combined in one module with the RAS. That module gets its power from fuse 114 in the BJB and fuse 16 in the cabin fuse box. Nothing to do with the ABS.

    The ABS module gets power from fuses 118 and 106 in the BJB and also from fuses 14 and 11 in the cabin. It gets is signals from the 4 wheel speed sensors, not from the VSS.
    Last edited by RF Overlord; 12-25-2011 at 09:49 AM.
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  10. #10
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    Without access to a WDS, you can try the following:

    Disconnect the ABS control module connector and check for >10 volts between pin 13 and ground (earth) and between pin 14 and ground. You can also check for proper grounds resistance from pin 12 to ground and from pin 15 to ground. (should be <5 ohms). Note: these readings are all from the harness side, not on the module itself.
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  11. #11
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    Quote Originally Posted by Spectragod View Post
    They are not on the list, you need to call or email them, they WILL rebuild your module. I had them do a couple for me that "weren't on the list".

    Good luck. I would seriously look for voltage or ground faults before changing parts.
    thank you, i wrote them a mail!!
    Quote Originally Posted by RF Overlord View Post
    Without access to a WDS, you can try the following:

    Disconnect the ABS control module connector and check for >10 volts between pin 13 and ground (earth) and between pin 14 and ground. You can also check for proper grounds resistance from pin 12 to ground and from pin 15 to ground. (should be <5 ohms). Note: these readings are all from the harness side, not on the module itself.
    what means RAS? i have an IDS/VCM scanner, the told me this faults:


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  12. #12
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    RAS = Rear Air Suspension

    Some of the codes in your screen shot make no sense and I can't find any info about them. One that DOES make sense is B1318 - RASM. That code mean Low Battery Voltage at the module. Combined with the versagt (failure) of the VAPS (which is the same module) points to some other electrical failure, possibly with the wiring. The FSM (factory service manual) also states that this code can be set by a battery in a low state of charge.

    Check for >10V at pins 1, 15, and 16 (referenced to ground). Also check for <5 ohms of resistance between pin 6 (of the harness side) and ground with the harness disconnected.

    C1897 is Steering VAPS Circuit Loop Failure. If you get everything else cleared and this remains, I can scan the test procedure and post it.
    Last edited by RF Overlord; 12-26-2011 at 08:39 AM.
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  13. #13
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    i´ll replace next week the HCU, because in the failure tree diagram shows the system, that C1300 is s defective ABS module or HCU module, may is the electric pump defective. but also i check every connectors and wirings. i´ll update you with the solution. thank you so much for help!
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  14. #14
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    Du bist herzlich willkommen, mein Freund.
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  15. #15
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    Du sprichst deutsch?
    Okay, komme gerne drauf zurück!
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