Rover 45 'W' -Mems 3- if it starts runs for 2 secondsArchived Message
Posted by Nick Bell on July 1, 2008, 6:46 pm
Hi All, Garage have conviced themselves this is immobiliser problem, and found details on 'net about bypassing immob. by cutting wire 13??. What's that all about? Anyway they've reconnected it now.
What should the immobiliser led be doing? This is often on 'solid', but seems to go out if ignition on. Can't communicate with immobiliser ECU, with ADPro (s/w 15 months old), and comms. keep dropping out with EM ECU. Seemed better if looking under '25'. When I could get it nothing obviously odd in live data.
Few codes, related to FIs but scanner crashed, the later codes related to FP and Eng Man. Relays, but by this time battery running out of juice so may just have been low voltage situation.
'Scoped FIs and CAS. Could see FI drive vanished before CAS signal decayed too much (slow timebase), and once could see FI drive only pulling down to about 6V. Unfortunately didn't save this display. Monitored FP relay coil and this was grounded for while after engine stopped. I guess next thing to check is supplies, and particularily, returns at ECU when I go back tomorrow. Anyone know where the ECU earth points are connected to?