ABS LIGHT

[DevonGSi]

Short out pins A + K and the dash will flash out the fault just like it does for the Engine ECU

Codes below:
Anti-Lock Braking System ECU
16 Left-front solenoid
17 Right-front solenoid
18 Rear solenoids
19 Solenoids relay circuits
25 Faulty sensor toothed ring
35 Pump relay circuits (hydraulic modulator)
37 Stop lamp switch (brake pedal switch)
39/44 Left front RPM sensor (air gap between sensor and toothed ring, & sensor operation)
41/45 Left front RPM sensor (resistance & connections)
42/46 Right front RPM sensor (air gap between sensor and toothed ring, & sensor operation)
43/47 Right front RPM sensor (resistance & connections)
48 System voltage wrong (alternator or battery)
55 Faulty ECU


The full pin-out for the diagnostic plug on type A vehicles is as follows:

A - Ground
B - Engine ECU
C - Automatic Gearbox (except models with traction control)
D - Fuel Computer (not UK models)
E - Engine ECU
F - +12v (fused)
G - Bi directional data line
H - Alarm
J - 4x4 or Traction Control (pin may not be present on certain models)
K - ABS


Hope it helps.

[man of kent]

The latesrt is that I arranged to go and see Murph and we were going to change all the relays and ECU and anything else we could think of, then.................4 days before, the light went out and has stayed out, so far. B....y annoying but hope it stays out.

I'm still thinking it had something to do with the silicone spray I used as rust preventer near the rear sensors although the tests said evrything was ok. Perhaps its dried out??

The Vauxhall dealer who no longer has the plug in diagnostics for the Carlton thinks that as I get a buzz through the pedal, unlike the pulsing, its a relay causing rapid activation.