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Home >> Volvo >> 1999 >> C70 2D Convertible, Standard >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Ignition And Control Systems - General Diagnostics And Tests (Convertible) >> Testing Transmission Input/Output Signals (B5234T3; B5254T; 1998) >> Checking Signal From The Transmission Control Module (TCM) >> Connecting the breakout box >> Checking for an open-circuit, contact resistance and oxidation
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Checking for an open-circuit, contact resistance and oxidation

Check ground terminals 31/32 and 31/33 and cables between ground terminals and control module #A20 and #A29 for an open-circuit according to Open-circuit, permanent faults , and contact resistance and oxidation according to Contact resistance and oxidation .

Check ground lead between battery and bodywork for an open-circuit according to Open-circuit, permanent faults , and contact resistance and oxidation according to Contact resistance and oxidation .

Fig 1: Ohmmeter
GLL101042Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 2: Checking Contact Resistance And Oxidation
GLL102161Courtesy of VOLVO CARS OF NORTH AMERICA.

Select "Continue" when the fault has been repaired. 



Check ground terminals 31/32 and 31/33 and cables between ground terminals and control module #A20 and #A29 for an open-circuit according to Open-circuit, permanent faults , and contact resistance and oxidation according to Contact resistance and oxidation .

Check ground lead between battery and bodywork for an open-circuit according to Open-circuit, permanent faults , and contact resistance and oxidation according to Contact resistance and oxidation .

Fig 1: Ohmmeter
GLL101042Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 2: Checking Contact Resistance And Oxidation
GLL102161Courtesy of VOLVO CARS OF NORTH AMERICA.

Select "Continue" when the fault has been repaired.