P1604 / MAZDA

Immobilizer System Fault

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P1604 / JEEP

PCM INTERNAL DUAL PORT RAM READ/WRITE INTEGRITY FAILURE

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P1604 / BUICK

Loss Of IPC Serial Data

Notes:

P1604 / BMW

Control Module Self Test, Speed Monitoring

Notes:

P1604 / AUDI

Internal Control Module Driver Error

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