Hi all,
New to the forum. Joined because I'm having a nightmare of a time fixing my Micra.. Lengthy post, sorry.
Car decided to intermittently not start (turn over) one day. Go on/off a few times with key and eventually would start. This then got worse to the point where it was more common it wouldn't start. It then started to discharge the battery overnight. (I did notice a few times it sounded like the boot lock was clicking away to itself)
Now we are at a point where it refuses to turn over at all.
On plugging in my diagnostic reader the IPDM returned a code of U1000. and the engine (I presume ECU) a code of U1001.
So far I have done a multitude of things to rectify but had no joy.
New battery just in case the old one is knackered.
Left key on in the on position for ten or so minutes hoping it is immobiliser. (key in car light on the dash goes off)
Removed earth points I can see. cleaned up and put copper grease on bolt and put back.
Removed and re-seated cables to see if there is a dry joint.
removed and re-seated all fuses and relays (also checked all fuses with a multi meter)
Checked relays on a relay tester all test ok.
I then got to the point of looking at buying parts for it.
New ignition switch (new from Nissan)
Replaced relays in the IPDM for ECM, Starter and Ignition (new from Nissan)
I then found a used IPDM on eBay. (read online they do not need to be coded in) So I bought it... This where the story gets interesting. After clearing the codes for the ECU and IPDM (the U1000 and U1001) those codes no longer return... But it still does not start.
Of course I have no way of knowing if this used IPDM was a working one but for the price I thought it was worth a gamble.
I have bridged the starter and it does spin and turn the engine over so I know that is ok. And in the Diagnostic reader on live data I can see ignition switch registers as going on. But on trying to crank the signal for (starter relay request) this just has 'off' and shows no sign of sending a signal to the relay.
I'm sure I've tried other things and forgotten what they are now. But this is the most of it.
It does seem to me the issue is getting a start signal to the starter motor relay.. I would welcome any suggestions... I have run out of ideas.
I have toyed with the idea of bypassing the IPDM and running a wire to the starter relay. I'd rather not if I can help it but I'm running out of ideas.
Many thanks in advance.
Rob
New to the forum. Joined because I'm having a nightmare of a time fixing my Micra.. Lengthy post, sorry.
Car decided to intermittently not start (turn over) one day. Go on/off a few times with key and eventually would start. This then got worse to the point where it was more common it wouldn't start. It then started to discharge the battery overnight. (I did notice a few times it sounded like the boot lock was clicking away to itself)
Now we are at a point where it refuses to turn over at all.
On plugging in my diagnostic reader the IPDM returned a code of U1000. and the engine (I presume ECU) a code of U1001.
So far I have done a multitude of things to rectify but had no joy.
New battery just in case the old one is knackered.
Left key on in the on position for ten or so minutes hoping it is immobiliser. (key in car light on the dash goes off)
Removed earth points I can see. cleaned up and put copper grease on bolt and put back.
Removed and re-seated cables to see if there is a dry joint.
removed and re-seated all fuses and relays (also checked all fuses with a multi meter)
Checked relays on a relay tester all test ok.
I then got to the point of looking at buying parts for it.
New ignition switch (new from Nissan)
Replaced relays in the IPDM for ECM, Starter and Ignition (new from Nissan)
I then found a used IPDM on eBay. (read online they do not need to be coded in) So I bought it... This where the story gets interesting. After clearing the codes for the ECU and IPDM (the U1000 and U1001) those codes no longer return... But it still does not start.
Of course I have no way of knowing if this used IPDM was a working one but for the price I thought it was worth a gamble.
I have bridged the starter and it does spin and turn the engine over so I know that is ok. And in the Diagnostic reader on live data I can see ignition switch registers as going on. But on trying to crank the signal for (starter relay request) this just has 'off' and shows no sign of sending a signal to the relay.
I'm sure I've tried other things and forgotten what they are now. But this is the most of it.
It does seem to me the issue is getting a start signal to the starter motor relay.. I would welcome any suggestions... I have run out of ideas.
I have toyed with the idea of bypassing the IPDM and running a wire to the starter relay. I'd rather not if I can help it but I'm running out of ideas.
Many thanks in advance.
Rob
