Signal specification
All values specified below are between the relevant terminal and terminal #8 (power ground).
Note. It is important to check ground terminals before taking readings.
| U= | DC voltage in volts (V) | ||
|---|---|---|---|
| U bat = | Battery voltage (V) | ||
| U low = | Voltage approximately 0 V |
Scheme 68
| Control module terminal | Signal type | Ignition off | Ignition on | Other |
|---|---|---|---|---|
| #A1 | Voltage feed control module | U low | U bat | Ignition switch position II. |
| #A2 | ||||
| #A3 | ||||
| #A4 | ||||
| #A5 | ||||
| #A6 | ||||
| #A7 | ||||
| #A8 | Ground | U low | U low | |
| #A9 | ||||
| #A10 | ||||
| #A11 | ||||
| #A12 | Serial communication (LIN) | During communication the voltage is 0V - U bat | ||
| #A13 | ||||
| #A14 | ||||
| #A15 | ||||
| #A16 |
Signal table, connector A
Scheme 69
| Control module terminal | Signal type | Ignition off | Ignition on | Other |
|---|---|---|---|---|
| #B1 | Signal ground, front parking sensors | U low | U low | |
| #B2 | Voltage supply, front parking sensors | U low | U bat | |
| #B3 | ||||
| #B4 | ||||
| #B5 | Signal, parking sensor 5 (outer left front) | |||
| #B6 | Signal, parking sensor 6 (inner left front) | |||
| #B7 | Signal, parking sensor 7 (inner right front) | |||
| #B8 | Signal, parking sensor 8 (outer right front) | |||
| #B9 | ||||
| #B10 | ||||
| #B11 | ||||
| #B12 |
Signal table, connector B, center terminal
Scheme 70
| Control module terminal | Signal type | Ignition off | Ignition on | Other |
|---|---|---|---|---|
| #C1 | Signal ground, rear parking sensors | U low | U low | |
| #C2 | Signal, parking sensor 3 (inner right rear) | |||
| #C3 | Signal, parking sensor 2 (inner left rear) | |||
| #C4 | Signal, parking sensor 4 (outer right rear) | |||
| #C5 | Signal, parking sensor 1 (outer left rear) | |||
| #C6 | Voltage supply, rear parking sensors | U low | U bat | |
| #C7 | Signal ground, rear parking sensors | U low | U low | |
| #C8 | Signal ground, rear parking sensors | U low | U low | |
| #C9 | Signal ground, rear parking sensors | U low | U low | |
| #C10 | Voltage supply, rear parking sensors | U low | U bat | |
| #C11 | Voltage supply, rear parking sensors | U low | U bat | |
| #C12 | Voltage supply, rear parking sensors | U low | U bat |
Signal table, connector C