SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSVOLVO2009XC70 BASEREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSELECTRICAL MODULES AND COMPONENTS - DESIGN AND FUNCTION - 4 OF 5KEYLESS VEHICLE MODULE (KVM)SYSTEM OVERVIEWSIGNALS
2009 Volvo XC70 Base

System Overview: Signals

2009 Volvo XC70 BaseSECTION Signals

The table below summarizes the input signals to and output signals from the keyless vehicle module (KVM). The signal types are divided into directly connected signals, serial communication and controller area network (CAN) communication. The illustration below displays the same information with the Volvo component designations.

Input signals Output signals
Directly connected:  Directly connected: 
  • Lock button on the handles on the side doors (3/273-276), for locking.
  • Unlocking switch in the external door handles (3/273-276), indicates that the door handle has been pulled out.
  • Unlocking contact breaker for the boot lid (10/3), indicates that the handle is pressed in.
  • Quick lock switch in each side door (6/36, 6/55-57), motor activation permitted.
  • Contact breaker at starter button in start control module (SCU) (3/132), indication that the starter button is depressed.
  • Central electronic module (CEM) (4/56), signal indicating that the brake pedal is pressed
  • Clutch switch (MAN) (3/271), indicates that the clutch pedal is pressed.
  • Internal antennas (16/134-135), for communication with a remote key in the passenger compartment.
  • Antenna in the luggage compartment (16/133), for communication with remote keys
  • External antennas in the door handle (3/275-276), for communication with remote keys.
  • External rear antenna (16/132), for communication with remote keys.
  • Lock unit with quick lock motor, front left (6/36), for opening the door.
  • Lock unit with quick lock motor, front right (6/55), for opening the door.
  • Lock unit with quick lock motor, rear left (6/57), for opening the door.
  • Lock unit with quick lock motor, rear right (6/56), for opening the door.
  • The lock unit with the quick lock motor in the boot lid (3/78), for opening the boot lid.
Via serial communication:  Via serial communication: 
  • Remote keyless entry (TRX) receiver (4/119), for receiving data from remote keys.
  • Remote keyless entry (TRX) receiver (4/119), wake-up signal.
  • Remote keyless entry (TRX) receiver (4/119), control command.
Via Controller Area Network (CAN) communication:  Via Controller Area Network (CAN) communication: 
  • Central electronic module (CEM) (4/56)
  • Infotainment control module (ICM) (3/281) when changing customer parameters.
  • Central electronic module (CEM) (4/56)
  • Driver information module (DIM) (5/1)
  • Infotainment control module (ICM) (3/281) when changing customer parameters.
  • Power Operated Tailgate Module (POT) (4/116) (option).
Fig 1: Identifying Input Signals And Output Signals From Keyless Vehicle Module (KVM)
GLL163022Courtesy of VOLVO CARS CORPORATION
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.