Checking the wiring and component

Check the cable between transmission terminal #C (#A3) and solenoid STH terminals #A and #D (#A4) and solenoid STH terminal #B. Check for a short-circuit to supply voltage. See Short-circuit to supply voltage. Permanent faults .

Also check the wiring for a short-circuit to supply voltage with the other cables in the wiring harness.

HINT: Check solenoid STH by measuring the solenoid STH resistance between terminals #A and #B. The resistance must be between 3 and 5 Ω. 

Remedy as necessary.

Other information: 

• To open the transmission control system, For removal, see Removing gearbox side cover To install, see Installing the gearbox side cover .
• To connect the breakout box to the transmission connector, see Connecting the breakout box, GM automatic transmissions
• To replace line pressure solenoid STH, see Solenoid, line pressure, replacing
• To replace the cable harness, see Wiring harness / oil temperature sensor, replacing
• For information about signals, see Signal specification .

Fig 2: Identifying Connector Terminals

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.

Refer to Resetting the adaptation