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Home >> Mazda >> 1989 >> 626 L4-2184cc 2.2L SOHC F2 >> Repair and Diagnosis >> Powertrain Management >> Relays and Modules - Powertrain Management >> Relays and Modules - Computers and Control Systems >> Engine Control Module >> Service and Repair
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Engine Control Module: Service and Repair

1. Disconnect the negative battery cable.
2. Remove the front console covers (right and left).
3. Disconnect the connectors from the control unit.
4. Install the control unit in the reverse order of removal.

CAUTION

When replacing an engine control unit be sure the new part is compatible with the old part. Since the December 1988 production, the material used for some of the terminals of the connector between the ECU and the engine harness has been changed from gold to tin. For complete details see TSB# F00190.