Signal Specification
General
All the values given below are between the terminals stated in column 1 and terminal #C2:4 in column 2 (power ground).
NOTE:
It is important to connect the breakout box and check the ground terminals before taking readings.
| 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 | Other |
|---|---|---|---|---|---|
| #31 | #C1:1 | - | - | - | - |
| #32 | #C1:2 | Power supply, trailer module (TRM), 30-supply | U = Ubat | U = Ubat | - |
CONNECTOR C2
| Breakout box terminal | Control module terminal | Signal type | Ignition off | Ignition on | Other |
|---|---|---|---|---|---|
| #22 | #C2:1 | CAN H | U = Ulow | During communication U = 2.5 - 4.0 V | - |
| #23 | #C2:2 | CAN L | U = Ulow | During communication U = 1.0 - 2.5 V | - |
| #24 | #C2:3 | Stop lamp, input signal | During activation U = Ubat | During activation U = Ubat | From the central electronic module (CEM) via the vehicle's left-hand tail lamp. |
| #25 | #C2:4 | Ground | Ulow | Ulow | - |
| #26 | #C2:5 | - | - | - | - |
CONNECTOR C3
| Breakout box terminal | Control module terminal | Signal type | Ignition off | Ignition on | Other |
|---|---|---|---|---|---|
| - | #C3:1 | Right turn signal lamp | U = Ulow | During activation and normal function f = 1, 5Hz, PWM = 50 % | - |
| - | #C3:2 | Charging (+12 V) (Certain markets only) | U = Ulow | U = Ubat | Active in ignition switch position I, II and III. |
| - | #C3:3 | Stop lamp, left | During activation U = Ubat | During activation U = Ubat | - |
| - | #C3:4 | - | - | - | - |
| - | #C3:5 | - | - | - | - |
| - | #C3:6 | Back-up (reversing) lamp (certain markets only) | U = Ulow | During activation U = Ubat | - |
| - | #C3:7 | Stop lamp, right | During activation U = Ubat | During activation U = Ubat | - |
| - | #C3:8 | Fog lamp (certain markets only) | U = Ulow | During activation U = Ubat | - |
| - | #C3:9 | - | - | - | - |
| - | #C3:10 | Left turn signal lamp | U = Ulow | During activation and normal function f = 1, 5 Hz, PWM = 50 % | - |
| - | #C3:11 | - | - | - | - |
| - | #C3:12 | Parking lamps | Normally U = Ulow During activation U = Ubat |
U = Ubat | - |