Signal Description, Closing Velocity Module (CVM)
General
All the values given below are between the respective terminal in column 1 and terminal #C1-7 in column 2 (power ground) unless otherwise stated in parenthesis after the table entry.
NOTE:
It is important to connect the breakout box and check the ground connections before starting to measure.
There may be several connections and connectors between the control module and components.
| 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, CONNECTOR C1
| Breakout box connection (951 1508) |
Control module terminal | Signal type | Ignition on | Idle | Miscellaneous |
|---|---|---|---|---|---|
| #A13 | #C1:1 | Communication CAN_L, Internal CAN | Communication with Supplemental Restraint System Module (SRS) | Communication with Supplemental Restraint System Module (SRS) | - |
| #A14 |
#C1:2 | Communication CAN_H, Internal CAN | Communication with Supplemental Restraint System Module (SRS) | Communication with Supplemental Restraint System Module (SRS) | - |
| #A15 |
#C1:3 | Communication CAN_L high speed network | During communication the voltage is 1.5 - 2.5 V | The voltage is 1.5-2.5 V during communication | - |
| #A16 |
#C1:4 | Communication CAN_H high speed network | During communication the voltage is 2.0 - 3.5 V | During communication the voltage is 2.0 - 3.5 V | - |
| #A17 |
#C1:5 | 15-feed | U = Ubat | U = Ubat | - |
| #C1:6 | - | - | - | - | |
| #A19 | #C1:7 | Ground | U=Ulow | U=Ulow | - |