Signal Specification
General
All the values given below are between the respective terminal in column 1 and terminal # C1:7 in column 1 (power ground) unless otherwise stated in brackets.
NOTE:
It is important to check 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 % |
SIGNAL TABLE, ACTIVE HEADLAMPS
| Control module terminal | Signal type | Ignition off Active/Inactive | Ignition on Active/Inactive | Miscellaneous |
|---|---|---|---|---|
| #C1:1 | Left headlamp control unit (LHCU), LIN communication | During communication the voltage is 0 V - Ubat | ||
| #C1:2 | Right headlamp control unit (RHCU), LIN communication | During communication the voltage is 0 V - Ubat | ||
| #C1:3 | Left headlamp control unit (LHCU), power supply | U low /Ulow | Ubat /Ubat | |
| #C1:4 | Right headlamp control unit (RHCU), power supply | U low /Ulow | Ubat /Ubat | |
| #C1:5 | Communication CAN_L high speed network | During communication the voltage is 1.5-2.5 V | ||
| #C1:6 | Communication CAN_H high speed network | During communication the voltage is 2.0-3.5 V | ||
| #C1:7 | Power ground | U low /Ulow | U low /Ulow | |
| #C1:8 | Rear axle sensor, ground | U low /Ulow | Ulow | |
| #C1:9 | Front axle sensor, ground | U low /Ulow | Ulow | |
| #C1:10 | 15-feed | U low /Ulow | Ubat /Ubat | |
| #C1:11 | Left headlamp, power ground | U low /Ulow | U low /Ulow | |
| #C1:12 | Right headlamp, power ground | U low /Ulow | U low /Ulow | |
| #C1:13 | - | - | - | |
| #C1:14 | - | - | - | |
| #C1:15 | - | - | - | |
| #C1:16 | - | - | - | |
| #C1:17 | Rear axle sensor, power supply | U low /Ulow | Ubat | |
| #C1:18 | Rear axle sensor, control signal | U low /Ulow | U=0-5 V | |
| #C1:19 | Front axle sensor, power supply | U low /Ulow | Ubat | |
| #C1:20 | Front axle sensor, control signal | U low /Ulow | U=0-5 V | |
SIGNAL TABLE, BI-XENON LAMPS
| Control module terminal | Signal type | Ignition off Active/Inactive | Ignition on Active/Inactive | Miscellaneous |
|---|---|---|---|---|
| #C1:1 | Left headlight vertical motor circuit, terminal 8 | U low /Ulow | U = Ubat f=25kHz Pulse ratio 0-100% |
Pulse width modulation (PWM) signal. The pulse ratio varies depending on whether the motor is active. |
| #C1:2 | Right headlamp vertical motor circuit, terminal 8 | U low /Ulow | U = Ubat f=25kHz Pulse ratio 0-100% |
Pulse width modulation (PWM) signal. The pulse ratio varies depending on whether the motor is active. |
| #C1:3 | Left headlight vertical motor circuit, terminal 7 | U low /Ulow | U = Ubat f=25kHz Pulse ratio 0-100% |
Pulse width modulation (PWM) signal. The pulse ratio varies depending on whether the motor is active. |
| #C1:4 | Right headlamp vertical motor circuit, terminal 7 | U low /Ulow | U = Ubat f=25kHz Pulse ratio 0-100% |
Pulse width modulation (PWM) signal. The pulse ratio varies depending on whether the motor is active. |
| #C1:5 | Communication CAN_L high speed network | During communication the voltage is 1.5-2.5 V | ||
| #C1:6 | Communication CAN_H high speed network | During communication the voltage is 2.0-3.5 V | ||
| #C1:7 | Power ground | U low /Ulow | Ulow | |
| #C1:8 | Rear axle sensor, ground | U low /Ulow | Ulow | |
| #C1:9 | Front axle sensor, ground | U low /Ulow | Ulow | |
| #C1:10 | 15-feed | U low /Ulow | Ubat | |
| #C1:11 | Left headlight vertical motor circuit, terminal 12 | U low /Ulow | Ubat f=25kHz Pulse ratio 0-100% |
Pulse width modulation (PWM) signal. The pulse ratio varies depending on whether the motor is active. |
| #C1:12 | Right headlamp vertical motor circuit, terminal 12 | U low /Ulow | Ubat f=25kHz Pulse ratio 0-100% |
Pulse width modulation (PWM) signal. The pulse ratio varies depending on whether the motor is active. |
| #C1:13 | Left headlight vertical motor circuit, terminal 11 | U low /Ulow | Ubat f=25kHz Pulse ratio 0-100% |
Pulse width modulation (PWM) signal. The pulse ratio varies depending on whether the motor is active. |
| #C1:14 | Right headlamp vertical motor circuit, terminal 11 | U low /Ulow | Ubat f=25kHz Pulse ratio 0-100% |
Pulse width modulation (PWM) signal. The pulse ratio varies depending on whether the motor is active. |
| #C1:15 | - | - | - | |
| #C1:16 | - | - | - | |
| #C1:17 | Rear axle sensor, power supply | U low /Ulow | Ubat | |
| #C1:18 | Rear axle sensor, control signal | U low /Ulow | U=0-5 V | |
| #C1:19 | Front axle sensor, power supply | U low /Ulow | Ubat | |
| #C1:20 | Front axle sensor, control signal | U low /Ulow | U=0-5 V | |