Almost failed to proceed - Immobiliser?
Discussion
Since getting my chim I have now had 3 almost failed to proceed moments. These are always after the car is hot and when it has been switched off for anything from 30 seconds to 5 minutes and results in nothing happening when turning the key.
The first time it happened I had pulled over to take some pics, decided to move the car a few feet. I turned the alarm on and off a few times and it eventually started up as normal. The second time I was at home, I had got out to grab something from the house, returned and same symptoms again. This time I messed around with the alarm for a full 30 mins opening and closing doors, locking and unlocking the car. I gave up and was about to post for help when after an hour it started up as normal and behaved perfectly for a week.
The final episode was yesterday at a petrol station, I filled up locked up and when I returned again nothing on the turn of the key. I rather embarrassingly pushed the car off the forecourt to a few smiles and did the usual with the alarm to no avail. I then switch over fuel pump relay and ECU relay, still nothing. Eventually pulled the ECU out for 30 seconds plugged it back in and it started. Coincidence? Quite possibly.
When this occurs the dashlights dim on full turn of the key and there is the faintest dull click which sounds electrical more than starter solenoid. If it is the immobiliser would this normally still turn the engine over or does it cut the starter?
Any tips on the best way to investigate this would be appreciated before I am arriving home on the back of a truck?
The first time it happened I had pulled over to take some pics, decided to move the car a few feet. I turned the alarm on and off a few times and it eventually started up as normal. The second time I was at home, I had got out to grab something from the house, returned and same symptoms again. This time I messed around with the alarm for a full 30 mins opening and closing doors, locking and unlocking the car. I gave up and was about to post for help when after an hour it started up as normal and behaved perfectly for a week.
The final episode was yesterday at a petrol station, I filled up locked up and when I returned again nothing on the turn of the key. I rather embarrassingly pushed the car off the forecourt to a few smiles and did the usual with the alarm to no avail. I then switch over fuel pump relay and ECU relay, still nothing. Eventually pulled the ECU out for 30 seconds plugged it back in and it started. Coincidence? Quite possibly.
When this occurs the dashlights dim on full turn of the key and there is the faintest dull click which sounds electrical more than starter solenoid. If it is the immobiliser would this normally still turn the engine over or does it cut the starter?
Any tips on the best way to investigate this would be appreciated before I am arriving home on the back of a truck?
Only last week I noticed that this cable was looking a bit worse for wear on the block. I presume this is to the starter? Is that a fuse in between?
Incidentally is the original immobiliser separate from the alarm? I have 2 alarm/immobilser LEDs one on the dash (can flash green, red or both) and what looks like an aftermarket on the top of the cowl which just flashed red when the alarm is enabled. Both can be flashing differently at different times. It would be good to understand which does what, especially as I have a toad alarm fob and an immobiliser fob on my keys!
Incidentally is the original immobiliser separate from the alarm? I have 2 alarm/immobilser LEDs one on the dash (can flash green, red or both) and what looks like an aftermarket on the top of the cowl which just flashed red when the alarm is enabled. Both can be flashing differently at different times. It would be good to understand which does what, especially as I have a toad alarm fob and an immobiliser fob on my keys!
Edited by Danblez on Monday 26th January 13:04
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