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Home >> Volvo >> 2008 >> S40 T-5, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 43 (Electronic Control Module (ECM) Diagnostic Trouble Codes - 3 Of 3 (644 Body)) >> ECM-91: Torque Reduction. Initialization Fault. Permanent Fault (B4204T2 CVVT; 2000) >> Initiation fault. Permanent fault >> Faulty signal >> Replacing the component

Replacing the component

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.

The old DSA control module is OK: Reinstall it.

NOTE:

It is vital that any diagnostic trouble codes (DTCs) in the engine control module (ECM) and the DSA control module are remedied before the engine control module (ECM) is replaced.

FENIX 5.1 

EMS 2000 



The old DSA control module is defective.

Install the new DSA control module according to DSA control module, replacement .

Fig 1: Identifying DSA System
GLL112810Courtesy of VOLVO CARS OF NORTH AMERICA.