Mad McNiff
Member
- Posts
- 38
- Location
- Wales
Yes set it to DC. I'll have another go with another meter to see if that's the problem. Might be operator error
Dash Lights 2002 L320
- Thread starter Mad McNiff
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Datatek
Well-Known Member
- Posts
- 43,937
- Location
- Near Poitiers SW France
I prefer to use a test lamp when checking earths and 12 volts as a DVM can show voltage on a point where due perhaps to corrosion there is next to no current flow possible. A 21 watt lamp will only fully light with a good connection.
Mad McNiff
Member
- Posts
- 38
- Location
- Wales
Hi all
I have finally got round to doing the tests that gstuart told me to carry out.
The results for the Ohms tests 6->14 = 60.6
3->11 =44.4
As for the Voltage tests they were as follows 6->4 =1.68V
6->5 =2.44V
14->4= 1.27V
14->5=1.27
6->14=1.16
If you could please give me any information these relate to them that would be great
I have to do some work on the RR ( replace the fuel tank cradle, rear bushes and clean up the chassis) , so I will check the modules and rear right wheel speed sensor as I go.
Is there a test you can do to see the speed sensor is working?
Thanks again for all your help
Gary
I have finally got round to doing the tests that gstuart told me to carry out.
The results for the Ohms tests 6->14 = 60.6
3->11 =44.4
As for the Voltage tests they were as follows 6->4 =1.68V
6->5 =2.44V
14->4= 1.27V
14->5=1.27
6->14=1.16
If you could please give me any information these relate to them that would be great
I have to do some work on the RR ( replace the fuel tank cradle, rear bushes and clean up the chassis) , so I will check the modules and rear right wheel speed sensor as I go.
Is there a test you can do to see the speed sensor is working?
Thanks again for all your help
Gary
Datatek
Well-Known Member
- Posts
- 43,937
- Location
- Near Poitiers SW France
Speed/ABS sensor outputs are visible in live data on diagnostics.
Mad McNiff
Member
- Posts
- 38
- Location
- Wales
Thanks for the information. I take it it has to be driven when doing it?
Thanks
Gary
Thanks
Gary
Datatek
Well-Known Member
- Posts
- 43,937
- Location
- Near Poitiers SW France
Yes, or all 4 wheels off the ground on axle stands
Mad McNiff
Member
- Posts
- 38
- Location
- Wales
OK.
I'll get the misses to drive it while I have it plugged in to the diagnostic machine and see what comes up.
The Radio has now gone dead after I left it out in the rain last night. It used to just have no sound but now it just doesn't come on, this looks like it could be a water leak problem as well.
Thanks again for continuing to give advice.
I am getting a bit worried about this as the MOT is looming and these are all failure points.
Thanks again.
Gary
I'll get the misses to drive it while I have it plugged in to the diagnostic machine and see what comes up.
The Radio has now gone dead after I left it out in the rain last night. It used to just have no sound but now it just doesn't come on, this looks like it could be a water leak problem as well.
Thanks again for continuing to give advice.
I am getting a bit worried about this as the MOT is looming and these are all failure points.
Thanks again.
Gary
Mad McNiff
Member
- Posts
- 38
- Location
- Wales
Hello All
Just a quick update.
I did a real time diagnosis o the wheel speed sensors and found the rear right to be defective.
I pulled it out and found some rusty detritus to be stuck to the sensor. I cleaned this off and put some contact cleaner on it. I also separated the plug and did the same.
After clearing the fault code it hasn't come back. I haven't had chance to run it yet but I'm hopeful as it came back immediately previously.
I also looked at the modules gstuart suggested and all seemed ok.
Once I've ran it I will update.
Thanks again for all your help
Gary
Just a quick update.
I did a real time diagnosis o the wheel speed sensors and found the rear right to be defective.
I pulled it out and found some rusty detritus to be stuck to the sensor. I cleaned this off and put some contact cleaner on it. I also separated the plug and did the same.
After clearing the fault code it hasn't come back. I haven't had chance to run it yet but I'm hopeful as it came back immediately previously.
I also looked at the modules gstuart suggested and all seemed ok.
Once I've ran it I will update.
Thanks again for all your help
Gary
Mad McNiff
Member
- Posts
- 38
- Location
- Wales
All
Just to close out the above problems as it is now solved.
A the real time fault suggested it was the sensor. It did come back as did the suspension faults etc.
I redid a diagnostic scan and found the common thread running through all the modules was the wheel sensor.
I replaced it with a new Bosch sensor and the fault disappeared again.
All the other faults went with it and have not returned.
It just goes to show how all the systems are linked on these cars and a small fault can produce a very worrying result.
Thanks again to all that help me sort this out I am very grateful to you.
Regards
Gary
Just to close out the above problems as it is now solved.
A the real time fault suggested it was the sensor. It did come back as did the suspension faults etc.
I redid a diagnostic scan and found the common thread running through all the modules was the wheel sensor.
I replaced it with a new Bosch sensor and the fault disappeared again.
All the other faults went with it and have not returned.
It just goes to show how all the systems are linked on these cars and a small fault can produce a very worrying result.
Thanks again to all that help me sort this out I am very grateful to you.
Regards
Gary
Datatek
Well-Known Member
- Posts
- 43,937
- Location
- Near Poitiers SW France
It's shows just how bad the design of the electronics is. A big thanks for reporting the fix.
