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Home >> Volvo >> 2000 >> V40 >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control Module (ECM) Diagnostic Trouble Codes - 3 Of 3 >> ECM-91: Torque Reduction. Initialization Fault. Permanent Fault (B4204T2 CVVT; 2000) >> Initiation fault. Permanent fault >> Faulty signal >> Replacing engine control module (ECM) >> Installing engine control module, continued
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Installing engine control module, continued

As part of the anti-theft protection on cars with electronic immobilizer, the control module box is locked with a lock strap. A shear screw is used to install the lock strap.

NOTE:

Do not reinstall the lock strap until the car has been repaired and all faults have been remedied.