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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-82: Air Conditioning (A/C) Condenser Fan. Signal Too High. Intermittent Fault (B4204T2 CVVT; 2000) >> Signal too high. Intermittent fault >> Checking components and wiring

Checking components and wiring

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 that the resistance between relay terminals 1 and 2 is approximately 75 Ω at +20 °C.

Check the signal cable between engine control module (ECM) terminal 38 (half speed), terminal 8 (full speed), terminal 69 (air conditioning (A/C) cooling fan) and relay terminal 2 for an intermittent short-circuit to supply voltage and remedy according to Short-circuit to supply voltage, intermittent faults .

Other information 

Fig 1: Identifying Air Conditioning (A/C) Relay Connector Terminals
GLL114250Courtesy 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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