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Home >> Volvo >> 2002 >> C70 2D Convertible, 2.3 53, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Transmission Control Module (TCM) Diagnostic Trouble Code (DTC) Diagnostics - 1 Of 3 (Convertible) >> TCM-0020 Vehicle Speed Sensor. Faulty Signal. Intermittent Fault (Aw55-50/51SN;2001-2004) >> Faulty signal. Intermittent fault >> Intermittent fault
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Intermittent fault

Check the wiring between control module #A57 (#A57) and vehicle speed sensor (VSS) connector #1 and between control module #A39 (#A39) and vehicle speed sensor (VSS) connector #2 for an intermittent open-circuit according to Open-circuit, intermittent faults , an intermittent short-circuit to ground according to Short-circuit to ground, intermittent faults and an intermittent short-circuit to supply voltage according to Short-circuit to supply voltage, intermittent faults .

Remedy as necessary.

Other information: 

Fig 1: Identifying Vehicle Speed Sensor
GLL101034Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 2: Identifying Ohmmeter
GLL101042Courtesy of VOLVO CARS OF NORTH AMERICA.

Select Continue when the fault has been remedied.