Checking The Wiring And Component

Check the cable for power supply between transmission connector terminal #S (#A16) and transmission input speed sensor connector terminal #A. Check for an open-circuit. See OPEN-CIRCUIT, PERMANENT FAULTS . Check for a short-circuit to ground. See SHORT-CIRCUIT TO GROUND, PERMANENT FAULTS . Check for a short-circuit to supply voltage. See SHORT-CIRCUIT TO SUPPLY VOLTAGE. PERMANENT FAULTS .

Check the signal cable between transmission connector terminal #V (#A19) and transmission input speed sensor connector terminal #B. Check for an open-circuit according to OPEN-CIRCUIT, PERMANENT FAULTS . Check for a short-circuit to ground according to SHORT-CIRCUIT TO GROUND, PERMANENT FAULTS . Check for a short-circuit to supply voltage according to SHORT-CIRCUIT TO SUPPLY VOLTAGE. PERMANENT FAULTS .

Remedy as necessary.

Other information: 

• To open the transmission control system, For removal, see SIDE COVER TRANSMISSION, REMOVING To install, see SIDE COVER TRANSMISSION, INSTALLING
• To connect the breakout box to the transmission connector, see CONNECTING THE BREAKOUT BOX, GM AUTOMATIC TRANSMISSIONS
• To replace the transmission speed sensor, see INPUT SPEED SENSOR TRANSMISSION, REPLACING
• To replace the cable harness, see TEMPERATURE SENSOR FLUID, TRANSAXLE, (TFT)
• For information about signals, see SIGNAL SPECIFICATION .

Fig 2: Identifying Connector Terminals

Courtesy of VOLVO CARS CORPORATION

Fig 3: Identifying Ohms Display

Courtesy of VOLVO CARS CORPORATION

Refer to RESETTING THE ADAPTATION