Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
System Overview: Signals
2009 Volvo XC70 BaseSECTION Signals
The tables below include the in and output signals for the units in the system for rear seat entertainment.
NOTE:
The CAN communication given here is only a private CAN between the control module and the screens.
REAR SEAT ENTERTAINMENT MODULE (RSE)/DVD-PLAYER (16/109)
| Input signals: | Output signals: |
Directly connected:
|
Directly connected:
|
Via Controller Area Network (CAN) communication:
|
Via Controller Area Network (CAN) communication:
|
SCREEN (CIRCUIT BOARD), HEAD RESTRAINT (16/164 (LEFT), 16/165 (RIGHT))
| Input signals: | Output signals: |
Wireless communication (Infrared communication (IR)):
|
Wireless communication (Infrared communication (IR)):
|
Directly connected:
|
Directly connected:
|
Via Controller Area Network (CAN) communication:
|
Via Controller Area Network (CAN) communication:
|
WIRELESS HEADPHONES
| Input signals: | Output signals: |
Wireless communication (Infrared communication (IR))::
|
Wireless communication (Infrared communication (IR)): |
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.
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.