850 Turbo L5-2.3L Turbo VIN 57 B5234FT (1996)
Engine Control Module: Service and Repair
ECM REPLACEMENT
Points to Observe When Replacing ECM
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Some new ECM's are programmed with DTC 3-2-5 on delivery from the factory.
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When changing an ECM from one car to another, remember to note any DTC(s) before removing component.
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The ECM must not be removed from the car until the main relay has interrupted the supply. This may take up to 150 seconds after the ignition has
been switched off.
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Always check the ECM and base for bent or damaged pins and sockets. Fault may be due to this cause.
Removal of ECM
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Check that supply from main relay has been interrupted. Easiest method is to place fingertips on the Idle Air Control valve. Cessation of valve
vibrations means that main relay has interrupted supply to system.
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Open ECM box cover and remove Motronic 4.3 ECM (module nearest engine).
