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.
Signal Description
General
All the values given below are between the respective terminal in column 1 and terminal #C1:10 in column 2 (power ground) unless otherwise stated in parenthesis after the table entry.
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 Active/Inactive | Ignition on Active/Inactive | Miscellaneous |
| #1 | #C1:1 | Heating coil forward-aimed camera | Ulow / Ulow |
Ulow / Ubat |
|
| #2 | #C1:2 | LED 1 left | Ulow / Ulow |
Ulow / Ubat |
Pulse width modulation (PWM) signal |
| #3 | #C1:3 | LED 2 middle | Ulow /Ulow |
Ulow / Ubat |
Pulse width modulation (PWM) signal |
| #4 | #C1:4 | LED 3 right | Ulow / Ulow |
Ulow / Ubat |
Pulse width modulation (PWM) signal |
| #5 | #C1:5 | - | |||
| #6 | #C1:6 | Communication CAN H middle speed network |
During communication the voltage is 1.5 - 2.5 V |
||
| #7 | #C1:7 | Communication CAN_L middle speed network | During communication the voltage is 2.0 - 3.5 V | ||
| #8 | #C1:8 | Local CAN bus FLR, high signal | |||
| #9 | #C1:9 | Local CAN bus FLR, low signal | |||
| #10 | #C1:10 | Power ground | Ulow / Ulow |
Ulow / Ulow |
|
| #11 | #C1:11 | 15-feed | Ulow / Ulow |
Ulow / Ubat |
|
| #12 | #C1:12 | Power supply | Ulow /Ubat |
Ulow /Ubat |
Via relay, interior lighting CEM. |
| #13 | #C1:13 | - | |||
| #14 | #C1:14 | Ground, heating coil forward-aimed camera. | Ulow / Ulow |
Ulow / Ulow |
|
| #15 | #C1:15 | Indicator visual collision warning ground | Ulow / U low |
Ulow / Ulow |
|
| #16 | #C1:16 | - | |||
| #17 | #C1:17 | - | |||
| #18 | #C1:18 | Communication CAN_H, Sensor-CAN | During communication the voltage is 2.0 - 3.5 V | Latest used on S60 (11-) and V60. Otherwise spare. | |
| #19 | #C1:19 | Communication CAN_L, Sensor-CAN | During communication the voltage is 1.5 - 2.5 V | Latest used on S60 (11-) and V60. Otherwise spare. | |
| #20 | #C1:20 | - | |||
| #21 | #C1:21 | - | |||
| #22 | #C1:22 | - | |||
| #23 | #C1:23 | - | |||
| #24 | #C1:24 | - | |||
| Connector C:2 | |||
| Control module terminal | Signal type | Ignition on Active/Inactive | Miscellaneous |
| #C1:1 | Forward facing camera, communication data | 0-4 V | |
| #C2:2 | Voltage supply, forward-aimed camera | 4.4 V | |
| #C2:3 | Ground, forward-aimed camera | Ulow | |
| #C2:4 | Forward-aimed camera, clock | 0-4 V | |
| #C2:5 | Video return signal | ||
| #C2:6 | Video signal | 1.0 Vp-p | |
| #C2-S | Cable protective ground | 0 V | The video cable has protective grounding to counteract interference. |
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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.
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