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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-A3: System Relay Output Signal Too High. Permanent Fault (B4204T2 CVVT; 2000) >> Signal too high. Permanent fault >> Checking cables

Checking cables

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.

Check the cable between the system relay block terminal 3 and engine control module (ECM) terminal 66 for a short-circuit to supply voltage according to Short-circuit to supply voltage. Permanent faults .

Fig 1: Identifying System Relay Base Connector Terminals
GLL114196Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 2: Identifying Voltage Display
GLL101041Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 3: Identifying EMS2000
GLL111998Courtesy of VOLVO CARS OF NORTH AMERICA.
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