P38A Fault code reader.

DanClarke · Dec 10, 2021

Some quick checks you can make yourself.
1. Check for 5V or so at each Sensor plug (upstream).
2. Check for at least >1K Ohms across the sensor itself, not 0 ohms and not open circuit.

I have had a repeat fault on my 4.6 Thor 2000 Rangie where each time it has been the same ABS sensor goes Kaput.
Always goes Open-Circuit, and the fault shows as ABS & Traction Control Lights on the dash and "ABS Sensor Short to another in Nanocom.
Each time replacing the 1 sensor (OSF) has fixed my issue (it always goes open-circuit).

Hope this helps.

Scipio Africanus · Dec 10, 2021

DanClarke said:
Some quick checks you can make yourself.
1. Check for 5V or so at each Sensor plug (upstream).
2. Check for at least >1K Ohms across the sensor itself, not 0 ohms and not open circuit.

I have had a repeat fault on my 4.6 Thor 2000 Rangie where each time it has been the same ABS sensor goes Kaput.
Always goes Open-Circuit, and the fault shows as ABS & Traction Control Lights on the dash and "ABS Sensor Short to another in Nanocom.
Each time replacing the 1 sensor (OSF) has fixed my issue (it always goes open-circuit).

Hope this helps.

Thats great advice Dan, thanks very much for sharing the experience and knowledge, much appreciated.

kermit_rr · Dec 10, 2021

does your abs trigger randomly like you're on slippy surface? Could have a broken reluctor ring like i currently have

Scipio Africanus · Dec 10, 2021

kermit_rr said:
does your abs trigger randomly like you're on slippy surface? Could have a broken reluctor ring like i currently have

Hi mate, no, never. If the ABS/traction lights are on they’re on from start up. This might happen a handful of times, repeatedly, then for days it’s fine and as soon as you move off and exceed c.5mph the ABS light goes out as it should. Sometimes the handbrake light stays on for a few seconds too.

kermit_rr · Dec 10, 2021

How many presses of the pedal does it take before the pump starts to run? Not sure why you'd have a relay related error unless historical

Scipio Africanus · Dec 11, 2021

kermit_rr said:
How many presses of the pedal does it take before the pump starts to run? Not sure why you'd have a relay related error unless historical

Just a couple of presses I think, but I’ll check this out later. The relay error probably is historical to be honest. None of the parts are expensive so I intended to replace the front sensors and the relay.

Scipio Africanus · Dec 11, 2021

By the way, if I replace the ABS sensors with non-genuine ones will this still be picked up and registered as a fault in the system?

Scipio Africanus · Dec 11, 2021

…and if after-market ones are ok is there any particular brand to look for, or should I just surf the bay?

kermit_rr · Dec 11, 2021

The ABS ECU does a self test on startup which is how the dash light can be intermittent. Fix the fault and the codes will go away.
Your accumulator will need replacing soon, you should get 4 presses. Eventually it will go down to every press and be a strain on the pump

kermit_rr · Dec 11, 2021

I recently bought an allmakes front sensor and within a week i got a fault. I've not 100% worked out if it's the sensor or not

Scipio Africanus · Dec 11, 2021

kermit_rr said:
I recently bought an allmakes front sensor and within a week i got a fault. I've not 100% worked out if it's the sensor or not

Thanks for the advice Kermit. I’ll double-check the ABS pump kick in, and I’ll try a couple of after-market sensors and see how I get on.

Datatek · Dec 11, 2021

I have allmakes in all 4 front sensors on my 2 P38's not had any problems.

Scipio Africanus · Dec 11, 2021

Datatek said:
I have allmakes in all 4 front sensors on my 2 P38's not had any problems.

Brilliant, thanks.

P38A Fault code reader.

DanClarke

Well-Known Member

Scipio Africanus

Active Member

kermit_rr

Very

Scipio Africanus

Active Member

kermit_rr

Very

Scipio Africanus

Active Member

Scipio Africanus

Active Member

Scipio Africanus

Active Member

kermit_rr

Very

kermit_rr

Very

Scipio Africanus

Active Member

Datatek

Well-Known Member

Scipio Africanus

Active Member

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