Signal Specification, Power Steering Control Module (PSCM)
General
All values listed below should be measured between the respective terminal (column 1, Terminal control module) and power ground (terminal B2) unless stated otherwise in the column Miscellaneous.
NOTE:
There is no cable harness on the Power Steering Control Module (PSCM) for connecting the breakout box. It is therefore important when any measurements are carried out that great care is taken to prevent short-circuits and damage to connectors.
| U= | DC voltage in volts (V) | UAC = | AC voltage in volts (V) |
| Ubat = | Battery voltage in volts (V) | f = | Frequency in Hertz (Hz) |
| Ulow = | Voltage approximately 0 V | PWM = | Pulse width modulated signal in % |
| t = | Time in seconds (s) | I = | Current in amperes (A) |
| Control module terminal | Breakout box connection | Signal type | Ignition on | Engine idling | Miscellaneous |
| #A1 | - | Relay 15-feed, voltage feed | U = Ubat | U = Ubat | Ignition off: U = Ulow |
| #A2 | - | HS-CAN L | - | - | |
| #A3 | - | HS-CAN H | - | - |
| Control module terminal | Breakout box connection | Signal type | Ignition on | Engine idling | Miscellaneous |
| #B1 | - | 30-supply (power supply from battery) | U = Ubat | U = Ubat | Ignition off: U = Ubat |
| #B2 | - | Power ground | U = Ulow | U = Ulow | Ground terminal, connected to the chassis |