Checking The Component And Wiring

Check the signal cable (position sensor 1) between engine control module (ECM) terminal #A96 (#B36) and throttle unit terminal #6 (wiring side). Check for an open-circuit.

Check the signal cable (position sensor 2) between engine control module (ECM) terminal #A72 (#B12) and throttle unit terminal #4 (cable harness side). Check for an open-circuit.

HINT: With the ignition on, the power supply to the throttle unit position sensor must be approximately 5 V measured between throttle unit connector terminals #3 and #5 (wiring side). 

If no faults are found and the diagnostic trouble code (DTC) recurs, try replacing the throttle unit.

Remedy as necessary.

Other information 

• see CONNECTING THE BREAKOUT BOX
• see SIGNAL SPECIFICATION
• see THROTTLE BODY
• see CHECKING WIRING AND TERMINALS

Fig 2: Identifying 6-Bit Connector

Courtesy of VOLVO CARS CORPORATION

Fig 3: Identifying Ohm Meter

Courtesy of VOLVO CARS CORPORATION

Fig 4: Identifying Electronic Throttle Unit

Courtesy of VOLVO CARS CORPORATION

Refer to VERIFICATION