Checking line pressure solenoid STH

Fig 1: Engine Start Verification

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Connectors

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off.
• Remedy control module and automatic transmission connector for contact resistance and oxidation according to Contact resistance and oxidation .
• Reinstall components, reconnect connectors etc.
• Raise the car so that the drive wheels are unimpeded.
• Start car.
• Read off current in solenoid circuit.
• Apply the brakes and shift the gear selector to position D.
• Depress accelerator pedal (AP) slowly.

  If the current reduces as the accelerator pedal (AP) is depressed, the cause of the fault was contact resistance or oxidation.

  Other information: 

  • To disconnect control module, see Replacing the gearbox control module (TCM) .
  • To disconnect transmission connector, see Inspecting/cable harness to solenoids .
  Fig 3: Identifying VCT2000

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Does current reduce when the accelerator pedal (AP) is depressed? 

• YES 

  OKAY:  Troubleshooting has been completed.

• NO 

  Refer to Checking wiring and components