Checking Wiring And Sensors

Check connector B (4-pin) for the transmission control module (TCM). Check for contact resistance. Check for oxidation.

Check the power supply cable between transmission control module (TCM) terminal #B2 (#A52) and the speed sensor. Check for an open-circuit. Check for a short-circuit to ground.

Check the signal cable between transmission control module (TCM) terminal #B1 (#A51) and the speed sensor. Check for an open-circuit. Check for a short-circuit to ground.

Remedy as necessary.

Other information 

• see CONNECTING THE BREAKOUT BOX
• see TRANSMISSION CONTROL MODULE (TCM)
• see TRANSMISSION INPUT SPEED SENSOR, INPUT SHAFT, TRANSAXLE (TSS)
• see SIGNAL SPECIFICATION
• see CONTENTS

Fig 1: Identifying Connector B Terminals

Courtesy of VOLVO CARS CORPORATION

Fig 2: Identifying Ohms Display

Courtesy of VOLVO CARS CORPORATION

Fig 3: Locating Transmission Output Speed Sensor

Courtesy of VOLVO CARS CORPORATION

• Continue 

  Refer to VERIFICATION