Checking solenoid SL

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off
• Connect the breakout box to the control module connector (transmission side).

  Check solenoid SL by measuring the resistance between terminals #A51 (#A51) and #A53 (#A53).

  When the transmission is cold (20°C), the resistance must be 10-11 Ω. When the transmission is at operating temperature (150°C), the resistance must not exceed 16 Ω.

  Other information: 

  • To connect the breakout box, see Connecting the breakout box
  • For information about signals, see Signal specification .
  Fig 2: Identifying Breakout Box

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 3: Identifying Ohms Display

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 4: Identifying Lock-Up Solenoid, SL

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Was the resistance OK? 

• YES 

  Refer to Connecting the T pipe 

• NO 

  Refer to Checking the wiring 

Fig 1: Engine Start Verification

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Engine running
• Move the gear selector to position D
• Activate the solenoid for gear 2 and then the lock-up function
• Check the pressure change on the oil pressure gauge. A considerable change in pressure should be observed
• Deactivate the lock-up function. Check the pressure change.

  Repeat the activation and deactivation of the lock-up function a few times to ensure accurate results.

  HINT: Unchanged pressure means that the control system is defective. 

  Fig 2: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Did the pressure change? 

• YES 

  Refer to Replacing the transmission 

• NO 

  Refer to Replacing the control system