Xantia Diesels - How to kill the ABS ECU.
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Xantia Diesels - How to kill the ABS ECU.
Just came across a Citroen fault note concerning ABS fitted Xantia diesels.
If you have to remove the instrument panel it is important not to operate the ignition switch while the instrument panel is disconnected. Turning the ignition switch in this state will cause the injection pump shut-off solenoid to generate an induced voltage. This induced voltage then fries a component in the ABS ECU. With this fault present the ABS warning lamp and the battery charge warning lamp will remain lit. The engine will also continue to run when the ignition is switched off.
To avoid this problem during maintenance disconnect the ABS ECU as well as the instrument panel before using the ignition switch.
Sorry if this has already been covered, just let me know and I will stop posting the odds and ends I come across.
John
If you have to remove the instrument panel it is important not to operate the ignition switch while the instrument panel is disconnected. Turning the ignition switch in this state will cause the injection pump shut-off solenoid to generate an induced voltage. This induced voltage then fries a component in the ABS ECU. With this fault present the ABS warning lamp and the battery charge warning lamp will remain lit. The engine will also continue to run when the ignition is switched off.
To avoid this problem during maintenance disconnect the ABS ECU as well as the instrument panel before using the ignition switch.
Sorry if this has already been covered, just let me know and I will stop posting the odds and ends I come across.
John
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That's a good tip if its true
By the sounds of it the back voltage induced when the field collapsed (same way an electromagnet works) , there "ought" to be a diode in the line to prevent that, almost seems like a design issue really...
By the sounds of it the back voltage induced when the field collapsed (same way an electromagnet works) , there "ought" to be a diode in the line to prevent that, almost seems like a design issue really...
Andy.
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Re: Xantia Diesels - How to kill the ABS ECU.
John, these "odds and ends" as you describe them are very interesting and valuable so keep posting them!xmexclusive wrote: Sorry if this has already been covered, just let me know and I will stop posting the odds and ends I come across.
I've run both a 2.1TD and an Activa with the instrument cluster removed with no adverse effects so I guess this applies to the 1.9TD with the fully mechanical pump.
Jim
Runner, cyclist, time triallist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...
Runner, cyclist, time triallist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...
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Hi Jim
Should have given the reference.
Citroen Info-rapid Xantia 1 no. 25 dated 5 April 1994.
The Xantia 1 info-rapids that I have start at no. 1 (18/5/93) through to no. 109 (9/4/01).
Headed as no. 1 means engine information.
In the same series:
no. 2 covers gearbox information (2-28).
no. 3 suspension information (1-17).
no. 4 power steering (1-4).
no. 5 brakes (1-12).
no. 6 hydraulic supply (1-12).
no. 7 bodywork (1-13).
no. 8 internal fittings and services (1-48).
no. 9 accessories (1-39).
No time spare to list them all but as an example that final one;
Xantia 9 no.39 (29/12/00) covers Horn failure on phase 2, the cure being fit 1.5mm spacers between the airbag module and the radio controls to eliminate interference.
John
Should have given the reference.
Citroen Info-rapid Xantia 1 no. 25 dated 5 April 1994.
The Xantia 1 info-rapids that I have start at no. 1 (18/5/93) through to no. 109 (9/4/01).
Headed as no. 1 means engine information.
In the same series:
no. 2 covers gearbox information (2-28).
no. 3 suspension information (1-17).
no. 4 power steering (1-4).
no. 5 brakes (1-12).
no. 6 hydraulic supply (1-12).
no. 7 bodywork (1-13).
no. 8 internal fittings and services (1-48).
no. 9 accessories (1-39).
No time spare to list them all but as an example that final one;
Xantia 9 no.39 (29/12/00) covers Horn failure on phase 2, the cure being fit 1.5mm spacers between the airbag module and the radio controls to eliminate interference.
John
Xmexclusive
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Thats rather interesting...
Im just sitting here trying to think if I have ever done it.. but cant recall if I have..
I have on a 1994 VSX breaker up the top, theres no clocks or anything, but it still starts and drives.. however, the ABS was not working because two sensors were faulty..
Theres no point putting the instruments back in because the ABS light is already lit, or removed...
Paul
Im just sitting here trying to think if I have ever done it.. but cant recall if I have..
I have on a 1994 VSX breaker up the top, theres no clocks or anything, but it still starts and drives.. however, the ABS was not working because two sensors were faulty..
Theres no point putting the instruments back in because the ABS light is already lit, or removed...
Paul
Sharing a pug 207 1.6 hdi Sw 16v.
M reg Xm 2.1 td auto exclusive S2 269k and rising
L reg XM V6 12v SEi auto .. Light project
A very sad...
1994 XM 2.1 d auto
M reg Xm 2.1 td auto exclusive S2 269k and rising
L reg XM V6 12v SEi auto .. Light project
A very sad...
1994 XM 2.1 d auto
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- My Cars: M reg Xm S2 2.1td Auto Exclusive. 269k and rising
L reg XM S1 V6 12v Manual SEi
L 94 XM 2.1 TD auto total resto
2008 Peugeot 207 Sw 1.6 16v hdi. 217k and rising
2010 Peugeot 207 SW 1.6 8v HDi 161k and rising - x 71
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- Posts: 8061
- Joined: 30 Dec 2004, 23:10
- Location: Somewhere in North Wales, Anglesey
- My Cars: M reg Xm S2 2.1td Auto Exclusive. 269k and rising
L reg XM S1 V6 12v Manual SEi
L 94 XM 2.1 TD auto total resto
2008 Peugeot 207 Sw 1.6 16v hdi. 217k and rising
2010 Peugeot 207 SW 1.6 8v HDi 161k and rising - x 71
On Series one cars up to 1997 Yes they did seperate...
Ive not looked at S2 ABS Blocks and ECU's though, I do have a spare off a working car and system.
Paul
Ive not looked at S2 ABS Blocks and ECU's though, I do have a spare off a working car and system.
Paul
Sharing a pug 207 1.6 hdi Sw 16v.
M reg Xm 2.1 td auto exclusive S2 269k and rising
L reg XM V6 12v SEi auto .. Light project
A very sad...
1994 XM 2.1 d auto
M reg Xm 2.1 td auto exclusive S2 269k and rising
L reg XM V6 12v SEi auto .. Light project
A very sad...
1994 XM 2.1 d auto
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- Posts: 8061
- Joined: 30 Dec 2004, 23:10
- Location: Somewhere in North Wales, Anglesey
- My Cars: M reg Xm S2 2.1td Auto Exclusive. 269k and rising
L reg XM S1 V6 12v Manual SEi
L 94 XM 2.1 TD auto total resto
2008 Peugeot 207 Sw 1.6 16v hdi. 217k and rising
2010 Peugeot 207 SW 1.6 8v HDi 161k and rising - x 71
Oi.... come back!.... ill get you! you wait!
It wouldn't be for me anyway, I have a very, what I think is decent TD with my 1994 SX WITH anti sink... which just passes every MOT!
PAul
It wouldn't be for me anyway, I have a very, what I think is decent TD with my 1994 SX WITH anti sink... which just passes every MOT!
PAul
Sharing a pug 207 1.6 hdi Sw 16v.
M reg Xm 2.1 td auto exclusive S2 269k and rising
L reg XM V6 12v SEi auto .. Light project
A very sad...
1994 XM 2.1 d auto
M reg Xm 2.1 td auto exclusive S2 269k and rising
L reg XM V6 12v SEi auto .. Light project
A very sad...
1994 XM 2.1 d auto
-
- Posts: 8061
- Joined: 30 Dec 2004, 23:10
- Location: Somewhere in North Wales, Anglesey
- My Cars: M reg Xm S2 2.1td Auto Exclusive. 269k and rising
L reg XM S1 V6 12v Manual SEi
L 94 XM 2.1 TD auto total resto
2008 Peugeot 207 Sw 1.6 16v hdi. 217k and rising
2010 Peugeot 207 SW 1.6 8v HDi 161k and rising - x 71