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) | U AC = | AC voltage in volts (V) |
|---|---|---|---|
| U bat = | Battery voltage (V) | F = | Frequency in Hertz (Hz) |
| U low = | Voltage approximately 0 V | T = | Time in seconds |
| PWM = | Pulse width modulated signal as a % |
Scheme 1
| Control module terminal | Signal type | Ignition off Active/Inactive | Ignition on Active/Inactive |
|---|---|---|---|
| #C1:1 | Left headlamp control unit (LHCU), LIN communication | During communication the voltage is 0 V - U bat | |
| #C1:2 | Right headlamp control unit (RHCU), LIN communication | During communication the voltage is 0 V - U bat | |
| #C1:3 | Left headlamp control unit (LHCU), power supply | U low /U low | U bat /U bat |
| #C1:4 | Right headlamp control unit (RHCU), power supply | U low /U low | U bat /U bat |
| #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 /U low | U low /U low |
| #C1:8 | Rear axle sensor, ground | U low /U low | U low |
| #C1:9 | Front axle sensor, ground | U low /U low | U low |
| #C1:10 | 15-feed | U low /U low | U bat /U bat |
| #C1:11 | Left headlamp, power ground | U low /U low | U low /U low |
| #C1:12 | Right headlamp, power ground | U low /U low | U low /U low |
| #C1:13 | |||
| #C1:14 | |||
| #C1:15 | |||
| #C1:16 | |||
| #C1:17 | Rear axle sensor, power supply | U low /U low | U bat |
| #C1:18 | Rear axle sensor, control signal | U low /U low | U=0-5 V |
| #C1:19 | Front axle sensor, power supply | U low /U low | U bat |
| #C1:20 | Front axle sensor, control signal | U low /U low | U=0-5 V |
SIGNAL TABLE, ACTIVE HEADLAMPS
| 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 /U low | U = U bat 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 /U low | U = U bat 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 /U low | U = U bat 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 /U low | U = U bat 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 /U low | U low | |
| #C1:8 | Rear axle sensor, ground | U low /U low | U low | |
| #C1:9 | Front axle sensor, ground | U low /U low | U low | |
| #C1:10 | 15-feed | U low /U low | U bat | |
| #C1:11 | Left headlight vertical motor circuit, terminal 12 | U low /U low | U bat 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 /U low | U bat 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 /U low | U bat 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 /U low | U bat 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 /U low | U bat | |
| #C1:18 | Rear axle sensor, control signal | U low /U low | U=0-5 V | |
| #C1:19 | Front axle sensor, power supply | U low /U low | U bat | |
| #C1:20 | Front axle sensor, control signal | U low /U low | U=0-5 V | |
SIGNAL TABLE, BI-XENON LAMPS