850 Turbo L5-2.3L Turbo VIN 57 B5234FT (1996)
Installation of New ECM
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Inspect ECM pins and sockets in base for damage.
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Install new ECM.
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Switch ON ignition.
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Display DTCs, if any.
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Erase DTCs and reset adaptive functions.
Erasing DTCs and Resetting Adaptive Functions
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It is important that DTCs are erased and adaptive functions are reset when the ECM is replaced or when work involves DTCs 2-3-1, 2-3-2 and
2-3-3, otherwise car may run poorly despite absence of faults. This may be carried out in one of two ways:
With Volvo System Tester Scan Tool (ST):
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Erase DTCs and reset adaptive functions individually.
Using Volvo Diagnostics:
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Adaptive functions are also reset when DTCs are erased by operating test button on Volvo DLC. To reset adaptive functions when no DTC is
present, a DTC must first be created, for example by opening the MAF sensor connector for approx. 10 seconds.
NOTE: If using the ECM from another car, DTCs (if any) must be erased and adaptive functions reset as described above before ECM is
reinstalled in car.
