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Home >> Volvo >> 1999 >> C70 2D Convertible, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Transmission Control Module (TCM) Diagnostic Trouble Code (DTC) Diagnostics - 2 Of 3 (Convertible) >> TCM-0044 Oil Temperature Sensor. Signal Too High (Aw50-42;2000) >> Signal too high >> Checking wiring and components

Checking wiring and components

Check the cable between control module #A37 and transmission connector (control module side) #12 for an open-circuit according to Open-circuit, permanent faults and a short-circuit to supply voltage according to Short-circuit to supply voltage. Permanent faults .

Check the cable between control module #A55 and transmission connector (control module side) #13 for an open-circuit according to Open-circuit, permanent faults and a short-circuit to supply voltage according to Short-circuit to supply voltage. Permanent faults .

HINT: With the ignition off and the transmission connector disconnected the resistance between #12 and #13 should be 765-1035 Ω at 20°C (68°F). At other transmission temperatures, see table under  Component resistance values  . 

Remedy as necessary.

Other information: 

Fig 1: Ohmmeter
GLL101042Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 2: Identifying Transmission Connectors (Control Module Side) #12 & #13
GLL125372Courtesy of VOLVO CARS OF NORTH AMERICA.