Diagnostic Tests: Notes

CAUTION: DO NOT crank engine before replacement PCM is programed to immobilizer system or PCM will be severely damaged. If test procedures require replacement of PCM on a vehicle equipped with immobilizer system, vehicle must be sent to authorized Mazda dealer to have replacement PCM programed.

NOTE: Vehicle with immobilizer system can be identified by a solid urethane ignition key head.

CAUTION: Ensure ignition is off before disconnecting harness connector from any component or control module.

NOTE: If PCM replacement is instructed in following testing, always ensure PCM connectors and ground circuits are okay. If either are suspect, repair and repeat testing to confirm PCM malfunction.

NOTE: For connector terminal identification, see appropriate wiring diagram under ENGINE PERFORMANCE in WIRING DIAGRAMS. Always perform applicable drive cycle test after repair is performed to verify if DTC is reset.