Does your meter read duty cycle?
Got to do “man duties” with the BBQ now.
To be continued… where are you based out of interest?
No it doesnt resdy duty cycle. It reads dc voltage/ac voltage resistance/capacitance/frequencydiode/continuity/NCV
I live in Lancaster North West UK.
what was the other question, its disappeared since you last bit?
Do you recon its the ECE?
That should be ECU
You are obviously cooking…Can you get back to me please when you get a chance as I am a bit depressed now at the thought of a new or second hand ECU.with locks etc
Test that RPM wire with the frequency setting if you can. I’ve not written off the PCM yet…
Setthe meter to frequency, connected between that connection & ground, absolutely nothing with the engine running or not running.
Have you read the meter instructions for measuring frequency? Does it need a 12 volt feed?
The only instruction with the meter only said which setting to set it. Never done this before. Not going to get a chance now till tomorrow as we just got a Morrisons delivery so that all has to be put away & then get some tea. I’ll Google it tomorrow & let you know. Thanks for your help for now. Chris.
Here’s an idea.
That Green/Orange wire wire also appears at the data link connector under the bonnet at the terminal marked IG-, I’ve attached a photo of the terminal pin layout.
Check the voltage at that pin, it should be the same as what you measured at the IC, then compare that reading to your other car, measuring it at the data link connector. I do suspect that the voltage reading that you are getting for RPM is correct.
Can you post a picture of where you carried out the repair on the original cluster?
You know, the more I think about this the more I think that it must be an instrument cluster fault. If the LCD isn’t even showing the mileage then is it completely dead???
If I were a very brave man I’d suggest fitted the suspect instrument cluster to the other car to test it… but I’m not that brave…
Hi Robbie, no I’m not that brave either. It’s very frustrating when this all started with a flickering instrument light behind the speedo. I took the dash out, replaced the bulb, put it back & none of the illumination bulbs worked. I bridged the fault on the board near the centre plug, put it back in, switched on the ignition & the rev counter shot up, so I switched it off rapidly. Since then the rev counter in the old one & the odometer in the old one dont work, didn’t try the speedo in the old one & all 3 don’t work in the new one. Problem I have is my age. My eyesight isn’t that good, even though I had a cataract operation in January, it’s still not good & at the moment I have an extremely stiff neck/headache & I have been told by my wife that I am not doing anything today (even though it’s her car). I feel like it’s my fault but I can’t figure how bridging that fault on the circuit near the centre plug could have caused this? I will try to get a pic as requested & post it in a while (if I can sneak away). Cheers
Ps, I have ordered a s/h ECU, locks, key etc as I feel like this is where I’m going to end up.
Did you see my previous post about testing the voltage at the diagnostic socket?
Yes, I might try that later. At the moment I can hardly turn my neck as it is sending shooting pains up the back of my head. Hopfully I have attached the pic you wanted.
Looks like that shorted terminal 3G to 3F. With the lights on that would have put 12 volts straight into the microprocessor in the instrument cluster which could well be the reason it all went wrong in the first place. Terminal 3F is unused.
If you can get one cheap enough, I’d be tempted to try another instrument cluster before swapping the PCM, I can’t see how the PCM having a fault would prevent the odometer displaying.
I’ve got the same instrument cluster in front of me here, I’m pretty sure that was replaced due to the speedo not working, a fault with the microprocessor I think, so maybe, just maybe the one you have is faulty too…
I have just has some success!!! I put the old cluster back in with the new odometer with 83k on it & the odometer gave me a reading , the rev counter worked & the speedo works, wowee. The only plug I didn’t put in was the middle one that was near to the burnt part of the board. I have requested that the guy I ordered an ECU from cancells the order & have ordered another instrument cluster. I have just remembered that when I received this new instrument cluster, it was wrapped in bubble wrap that was very damp & when I opened it up the instrument cluster was very damp, there were water droplets all over it. I did inform the seller straight away & he said if I had any problems to get back to him but had no idea why this was. So it looks like all this time I have been trying to fix this it was a faulty replacement cluster.
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Robbie,
just to let you know that I very much appreciate your time & help which pointed me in the right direction. It is very much appreciated.I am waiting for the second cluster to be delivered & then hopefully everything should work ok. I managed to cancel the order fot the s/h ECU etc., & have sent the seller that I bought the 1st cluster from a message to say I want a refund.
I was going round in circles yesterday & the 2 days before that. The original cluster had developed a fault in the circuit board which someone had previously repaired. When I tried to repair it again I must have shorted out 2 connections which as you said probably put 12v on to the microprocesser & caused the rev counter to shoot up. The replacement cluster was obviously faulty, probably due to the fact it was wet when it arrived here. i tried the original cluster back in but with all 3 plugs in. Thats when the rev counter & odometer didn’t work, so I presumed I had caused some damage elsewhere.
When I tried it again yesterday & it worked, I had only plugged in the outer 2 plugs, not the one near the damaged board.So to end I have got one cluster that the rev counter, speedo & odometer work but it doesn’t illuminate (the original one) & another that I received that illuminates but the rev counter, speedo & odometer don’t work. I was trying to fix the problem with 2 faulty units, both with different faults.If you don’t hear from me again then the 2nd replacement has worked ok & again I must thank you for all your efforts to help me. Kind regards Chris.
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Hope the replacement cluster sorts it. I reckon you could make 1 good one out of 2 bad ones if you’re so inclined.
Glad to be of help, it’s what the Owner’s Club is for.
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I presume that the seller I bought the faulty one from will want it returning so I get my refund otherwise I would probably try it, but as it was 50 quid for that one I deinitely want a refund. The other one that is on its way was a lot cheaper at 23 quid. Shame I didn’t see that one in the first place. Hey Ho.
Again, thanks for your help & keep safe & safe driving, when we can get out on the road again.
Kind regards.
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