Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
Diagnosing a no start. Getting ignition coil control but no injector control, is this an immobilizer strategy to disable fuel injectors only.? Any knowledge shared on these immobilizer systems would be appreciated. Thank you and God bless
have you done a system scan with a scanner yet? if not post the codes if it has any... something easier if you have a 2nd key might want to try that to
The security light only blinks when the cars is locked. And the battery was disconnected for awhile. I however assumed there was no codes so I didn't check for codes. I initially thought the injector drivers were cooked because the check engine light doesn't come on what so ever and I thought the immobilizer disabled (no control) injectors and coils. Not just the injectors.
I had a similar issue with a '97 uk spec Rav4 when i had to renew the 100 amp ALT fuse because of a previous bodged repair! This led to a cranking no start just like yours. The vehicle had spark but no injection pulse. I solved my issue by trying the "Master" key and the Rav fired up again and was no more trouble. Might solve your problem. Steve
Check for fuses that should NOT be there according to the fuse box diagram. On several Toyota cars fuses in places not designed for them will cause exactly your symptom.
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Last edit: 7 years 9 months ago by juergen.scholl.
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