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2007 honda crv no start

  • eldin.hujic
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7 years 10 months ago #18366 by eldin.hujic
2007 honda crv no start was created by eldin.hujic
The car came in for a broken belt due to a faulty a/c compressor. Tech replaced the ac compressor, the car started but compressor was not engaging. I am not sure what the tech did but i saw him poke around with a power probe and now the car does not start.

Symtoms are
No start
No Spark
No Com
i do have a 5v ref.

I am probably going to be stuck figuring out what went wrong and could use any direction on how to tackle this,.


thank you

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  • juergen.scholl
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7 years 10 months ago #18367 by juergen.scholl
Replied by juergen.scholl on topic 2007 honda crv no start
Best thing is to get the whole story.... try it.

Meanwhile check fuses, power and grounds to the pcm, then com lines, the usual stuff..

I take it the engine cranks.....do you have com with any module?
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7 years 10 months ago #18368 by eldin.hujic
Replied by eldin.hujic on topic 2007 honda crv no start
all fuses are good, MIL comes and stays on, 5v ref is present the car cranks. No coms with any modules what so ever. and he said all he did is try to engage the a/c clutch by putting 12 volts to it.

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7 years 10 months ago #18369 by juergen.scholl
Replied by juergen.scholl on topic 2007 honda crv no start
What is going on at the can bus, any voltage measurements done or scoped the bus?

And don't forget power and grounds...
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  • Chad
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7 years 10 months ago #18377 by Chad
Replied by Chad on topic 2007 honda crv no start
I'm not sure what it is, but I would be looking at the MICU?



"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right. :-)
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7 years 10 months ago #18381 by kostelectronics
Replied by kostelectronics on topic 2007 honda crv no start
Maybe he touched the wrong pin while he tryed to engage the compressor manually and grilled the ECU with this!

Try to disconnect the ECU and see if you have communication to the other Systems after?!

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