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P1624 Diagnostic Trouble Code Discussion for July 2020

Immobilizer Communication Error


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Trouble Ticket Help Requests for DTC P1624
Help Request Posted
2001 Mazda Miata 1.8L No Start VIN: JM1NB353X1
P1624: Immobilizer Communication Error. ... start. It would intermittently start, then die after a few seconds. Then it would not start at all. Checked all powers and grounds, 5volt reference voltage and pinned out all pcm connections. I am able to communicate with the pcm. The original securit...
July 07, 2020