flashing immobilizer light
#1
Three Wheelin'
Thread Starter
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Driving my daughter to her last final of freshman year in high school, the immobilizer light flashed at me. Did not turn car off there and drove to work. It kept flashing. Got in the garage, stopped the car and turned it off and then tried to start it. Started right up and light did not flash. I tried it again, but this locked car and unlocked it. Started right up, no flashing.
What's up with that?
What's up with that?
#2
RL Technical Advisor
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A flashing Immobilizer lamp usually indicates a loss of communications between the DME and Immobilizer control unit. It can also signal a failure of the Immobilizer ECU itself.
Time to plug in a PST-2 or Hammer to see whats going on.
Time to plug in a PST-2 or Hammer to see whats going on.
#3
Three Wheelin'
Thread Starter
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Thanks. What is a PST-2 or Hammer? I'm assuming they are diagnostic devises...
Since it was flashing and is no longer, is this a one-off or the start down the path towards self-destruction? Will the PST-2 tell me that? Since it flashed after the starting this morning but would not repeat itself upon restart, does that mean loss of communication that was "resolved"? Do we have any idea?
Since it was flashing and is no longer, is this a one-off or the start down the path towards self-destruction? Will the PST-2 tell me that? Since it flashed after the starting this morning but would not repeat itself upon restart, does that mean loss of communication that was "resolved"? Do we have any idea?
#4
RL Technical Advisor
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Since it was flashing and is no longer, is this a one-off or the start down the path towards self-destruction? Will the PST-2 tell me that? Since it flashed after the starting this morning but would not repeat itself upon restart, does that mean loss of communication that was "resolved"? Do we have any idea?
#5
Rennlist Member
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Same thing happened to me a couple of weeks ago. When I got the light, I turned around and got it in the garage right away before shutting it down. Started right back up w/o flashing. The car had been sitting awhile and cranked slowly, so I thought the battery may have been low and some of the electronics got upset.
#6
Three Wheelin'
Thread Starter
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Thanks Steve. I have driven the car a few times (3 trips) since this morning and nothing abnormal has happened. I suspect there are little gremlins in the electrical system, like Vince's situation. Occasionally when I put on the turn signal, the radio goes silent for a second, like there is an electronic interuption. Ordered a new ground strap and will swap out the voltage regulator soon, as those both are original I think.