Hello again Siegfried & Ray - & here`s what I`ve managed to complete:
1) I`ve found the knack of getting the connector off the ABS unit under the seat – the black spring clip needs depressing to clear a little moulded ramp & then it eases off by pivoting on that pin. I may need to remove the ABS unit itself & despite having done this years ago need to check if it just prises out of that matt black sprung metal cradle?

2) At the |ABS block I`ve measured:
1-7 = 6.1 Ω
1-2 = 6.1 Ω
1-3 = 3.7 Ω
1-6 = 3.7 Ω

3) With the seat tied up with my best ex-army string I`ve measured resistances at the ECU connector:
11-15 = 6.8 Ω
11-35 = 6.9 Ω
11-34 = 4.2 Ω
11-16 = 4.2 Ω

Reading over your advice Siegfried this would seem to show the valve coils are OK & not corrupted, but the ECU has been upset & won`t operate correctly.

I tried over & over to get the flash code to `move on` to any further ones stored but was unable to get past 1134 – the lamp then stayed constantly lit. This seems to be described in para 5 of the fault code retrieval procedure where it describes this outcome as a valve fault.

On p 371-12 of Bentley the wiring diag shows that pin 34 of the ECU is fed by a green/white wire 0.75 dia – I suspect this is the one I pierced with my foolish probing at the bulkhead loom.

If I understand the analysis it seems I`ve fried the brain & need to do the swap – I hope the ABS junction block containing the valves is actually OK.

Thanks once again if you could offer your advice – it`s been much appreciated!


posted by 2.25.150...

• Self inflicted ABS ANTILOCK light problem ..., Julianm, Sat, 16 May 2015 00:49:48
  • ABS ECU stores DTC in ROM, not RAM, Siegfried, Sat, 16 May 2015 11:45:45
    • Re: ABS ECU stores DTC in ROM, not RAM, julianm, Sun, 17 May 2015 03:47:10
      • Re: ABS ECU stores DTC in ROM, not RAM, Julianm, Mon, 18 May 2015 04:19:24
        • clearing ABS DTCs out, Siegfried, Mon, 18 May 2015 06:21:49
        • Looks like either V/B or ABS ECU or wiring faulty, Siegfried, Mon, 18 May 2015 06:13:59
        • My suggestion: Swap brain., RayF, Mon, 18 May 2015 05:18:03
          • Oh, and I was gonna add but forgot:, RayF, Mon, 18 May 2015 06:29:50
            • ta-ta-dada-ta-dada-ta-dada!, Siegfried, Mon, 18 May 2015 06:39:33
              • Thanks Sig, cgwiz , Wed, 20 May 2015 12:39:37
              • Re: ta-ta-dada-ta-dada-ta-dada!, Name Left Blank, Mon, 18 May 2015 11:47:52
                • Click the button to move to the next DTC, Siegfried, Mon, 18 May 2015 12:30:17
                  • Re: Click the button to move to the next DTC, Julianm, Tue, 19 May 2015 00:24:38
                    • Re: Click the button to move to the next DTC, Julianm, Wed, 20 May 2015 08:57:13 <-- Viewing This Message
                      • this makes sense then!, Siegfried, Wed, 20 May 2015 10:08:00
                        • Re: this makes sense then!, Julianm, Thu, 21 May 2015 00:31:05
                          • Well, I say!, Siegfried, Thu, 21 May 2015 07:50:52
                            • Re: Well, I say!, Julianm, Fri, 22 May 2015 01:23:46
                              • Lowp ovver t'yat! Teem your bucket into the sile, Siegfried, Fri, 22 May 2015 08:08:18

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