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Home >> Volvo >> 2003 >> C70 2.3 53, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 81 (Ignition, Fuel And Engine Control Systems - Removal, Replacement And Installation (Coupe)) >> Replacing Engine Control System Components (B5234T3; 1999-2002) >> Replacing the Engine Control Module (ECM) >> Points To Observe When Replacing The Control Module

Points To Observe When Replacing The Control Module

WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Engine Control Module
GLL103038Courtesy of VOLVO CARS OF NORTH AMERICA.
CAUTION: New software can only be ordered when the control module is installed in the car. VIDA reads off the new control module identity which is required to order the correct software. The software can only be ordered when the control module is installed in the car.
CAUTION: Wait 2 minutes after the ignition has been switched off. The main relay must be voltage-free before the control module can be removed from the car. If the engine cooling fan runs on after the ignition has been switched off, wait until it stops and then wait for another 2 minutes.
CAUTION: Always check that the control module and control module box connector pins and sleeves are not bent or damaged. This may have caused the fault.
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