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.
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HOMESERVICE MANUALSVOLVO2009XC70 BASEREPAIR AND DIAGNOSISBODY & FRAMEDOOR LOCKSKEYLESS VEHICLE MODULE, CLOSING VELOCITY MODULE, FORWARD SENSING MODULE, AND PARKING ASSISTANCE MODULE - SPECIFICATIONS, ELECTRICAL/ELECTRONICSIGNAL SPECIFICATION, PARKING ASSISTANCE MODULE (PAM)SIGNAL SPECIFICATION
2009 Volvo XC70 Base
Signal Specification
2009 Volvo XC70 BaseSECTION Signal Specification
General
All the values given below are between the terminals stated in column 1 and terminal #C1:8 in column 2 (power ground).
NOTE:
It is important to connect the breakout box and check the ground connections before starting to measure.
| U= | DC voltage in volts (V) | UAC = | AC voltage in volts (V) |
| Ubat = | Battery voltage (V) | f = | Frequency in Hertz (Hz) |
| Ulow = | Voltage approximately 0 V | t = | Time in seconds |
| PWM = | Pulse width modulated signal as a % |
CONNECTOR C1
| Breakout box terminal | Control module terminal | Signal type | Ignition off | Ignition on (position II) | Miscellaneous |
|---|---|---|---|---|---|
| #1 | #C1:1 | Power supply, parking assistance module (PAM), 15-supply | U = Ulow | U = Ubat | Via relay 15-feed, electrical distribution box luggage compartment. |
| #2 | #C1:2 | - | - | - | - |
| #3 | #C1:3 | - | - | - | - |
| #4 | #C1:4 | - | - | - | - |
| #5 | #C1:5 | - | - | - | - |
| #6 | #C1:6 | - | - | - | - |
| #7 | #C1:7 | CAN L | U = Ulow | During communication U = 1.0 - 2.5 V. | - |
| #8 | #C1:8 | Ground | U = Ulow | U = Ulow | - |
| #9 | #C1:9 | - | - | - | - |
| #10 | #C1:10 | - | - | - | - |
| #11 | #C1:11 | - | - | - | - |
| #12 | #C1:12 | - | - | - | - |
| #13 | #C1:13 | - | - | - | - |
| #14 | #C1:14 | CAN H | U = Ulow | During communication U = 2.5 - 4.0 V. | - |
| #15 | #C1:15 | - | - | - | - |
| #16 | #C1:16 | - | - | - | - |
CONNECTOR C2, CENTER TERMINAL
| Breakout box terminal | Control module terminal | Signal type | Ignition off | Ignition on (position II) | Miscellaneous |
|---|---|---|---|---|---|
| #21 | #C2:1 | Signal ground, front parking sensor | U = Ulow | U = Ulow | - |
| #22 | #C2:2 | Voltage supply, front parking sensors | U = Ulow | U = Ubat | - |
| #23 | #C2:3 | - | - | - | - |
| #24 | #C2:4 | - | - | - | - |
| #25 | #C2:5 | Signal, parking sensor outer left front | U = Ulow | U = 8.8 -16.0V | - |
| #26 | #C2:6 | Signal, parking sensor inner left front | U = Ulow | U = 8.8 -16.0V | - |
| #27 | #C2:7 | Signal, parking sensor inner right front | U = Ulow | U = 8.8 -16.0V | - |
| #28 | #C2:8 | Signal, parking sensor outer right front | U = Ulow | U = 8.8 -16.0V | - |
| #29 | #C2:9 | - | - | - | - |
| #30 | #C2:10 | - | - | - | - |
| #31 | #C2:11 | - | - | - | - |
| #32 | #C2:12 | - | - | - | - |
CONNECTOR C3
| Breakout box terminal | Control module terminal | Signal type | Ignition off | Ignition on (position II) | Miscellaneous |
|---|---|---|---|---|---|
| #41 | #C3:1 | - | - | - | - |
| #42 | #C3:2 | Signal, parking sensor inner right rear | U = Ulow | U = 8.8 -16.0V | - |
| #43 | #C3:3 | Signal, parking sensor inner left rear | U = Ulow | U = 8.8 -16.0V | - |
| #44 | #C3:4 | Signal, parking sensor outer right rear | U = Ulow | U = 8.8 -16.0V | - |
| #45 | #C3:5 | Signal, parking sensor outer left rear | U = Ulow | U = 8.8 -16.0V | - |
| #46 | #C3:6 | - | - | - | - |
| #47 | #C3:7 | - | - | - | - |
| #48 | #C3:8 | Signal ground, rear parking sensors | U = Ulow | U = Ulow | - |
| #49 | #C3:9 | - | - | - | - |
| #50 | #C3:10 | - | - | - | - |
| #51 | #C3:11 | Voltage supply, rear parking sensors | U = Ulow | U = Ubat | - |
| #52 | #C3:12 | - | - | - | - |
RENDER: 1.0x
NO RELATED
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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.