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Home >> Volvo >> 2008 >> S40 T-5, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 13 (Transmission - Removal, Replacement And Installation (644 Body)) >> Replacing The Transmission Control Module (TCM) (Aw55-50/51SN; 2001-2004) >> Replacing the transmission control module (TCM) >> Removal >> 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 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Installing Hoist
GLL112744Courtesy of VOLVO CARS OF NORTH AMERICA.
CAUTION: Wait two 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 (FC) runs on after the ignition has been switched off, wait until it stops. Then wait a further 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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