Signal Specification
All the values given below are between the respective terminal in column 1 and terminal #A9 in column 2 (power ground) unless otherwise stated in brackets after the table entry.
NOTE:
It is important to connect the breakout box and check the ground terminals before taking readings.
| 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 |
Driver door module (DDM) connector A, Passenger door module (PDM) connector A
SIGNAL TABLE CONNECTOR A
| Terminal Breakout box | Terminal Control module | Signal type | Ignition off Active/not active | Ignition on Active/not active | Other |
|---|---|---|---|---|---|
| #1 | A1 | Lock motor 1 (M1) | U bat /U low | U bat /U low | Active when locking. |
| #2 | A2 | Locking motor, common (M2) | U bat /U low | U bat /U low | Active when unlocking. |
| #3 | A3 | Communication cable, control modules (CAN H) | U = 2.5-3.5 V | U = 2.5-3.5 V | - |
| #4 | A4 | Signal from the control for power window mechanism, Up. | U low | U bat /U low | Only Passenger door module (PDM), not connected on the Driver door module (DDM). Active when raising the window. |
| #5 | A5 | Signal from the control for power window mechanism, Down | U low | U bat /Ulow | Only Passenger door module (PDM), not connected on the Driver door module (DDM). Active when lowering the window. |
| #6 | A6 | Central locking control, locking | U low | U bat /Ulow | - |
| #7 | A7 | Central locking control, unlocking | U low | U bat /Ulow | - |
| #8 | A8 | Temperature sensor | U low | U bat /Ulow | - |
| #9 | A9 | Ground | U low | U low | - |
| #10 | A10 | Lock motor 2 (M3) | U bat /U low | U low / U bat | Active during deadlocking. |
| #11 | A11 | Ground (31SB) | U low | U low | - |
| #12 | A12 | Communication cable, control modules (CAN L) | U = 1.5 - 2.5 V | U = 1.5 - 2.5 V | - |
| #13 | A13 | Communication cable, control modules (LIN) | U = 5 - 8 V | U = 5 - 8 V | Control modules in rear doors, control panel in driver's door. |
| #14 | A14 | Control panel driver's door, voltage supply | U low | U bat | Not connected on the Passenger door module (PDM). |
| #15 | A15 | Status door lock (DL) | U low
in locked position U bat in unlocked position |
U low
in locked position U bat in unlocked position |
- |
| #16 | A16 | Control panel lighting | U low | U bat | - |
| #17 | A17 | Ground, temperature sensor | U low | U low | - |
| #18 | A18 | Power supply control module | U bat | U bat | - |
Driver door module (DDM) connector B, passenger door module (PDM) connector B
SIGNAL TABLE, CONNECTOR B
| Terminal Breakout box | Terminal Control module | Signal type | Ignition off Active/not active | Ignition on Active/not active | Other |
|---|---|---|---|---|---|
| #21 | B1 | Ground, temperature sensor | U low | U low | - |
| #22 | B2 | Temperature sensor | U low | U bat | - |
| #23 | B3 | Control module camera, voltage supply | U low | U bat | - |
| #24 | B4 | Communication cable, control modules (LIN) | U low | U bat /U low | Control module camera. |
| #25 | B5 | Reserve | - | - | - |
| #26 | B6 | Reserve | - | - | - |
| #27 | B7 | MC (Mirror Common) | U low | U bat /U low | Door mirror motor, common. |
| #28 | B8 | MUD (Mirror Up and Down) | U low | U bat /U low | Door mirror motor, Up/Down. |
| #29 | B9 | MLR (Mirror Left and Right) | U low | U bat /U low | Door mirror motor, Left/Right. |
| #30 | B10 | MF (Mirror Fold) | U low | U bat /U low | - |
| #31 | B11 | Door mirror heating | U bat /Ulow | U bat /Ulow | - |
| #32 | B12 | Ground, door mirror heating, door mirror lighting and turn signal lamp (31M) | - | U low | - |
| #33 | B13 | Door mirror lighting | U bat /U low | U bat /U low | Not used on all vehicles. |
| #34 | B14 | Turn signal lamp, door mirror | U bat /U low | U bat /U low | - |
Driver door module (DDM) connector C
SIGNAL TABLE CONNECTOR C
| Terminal Breakout box | Terminal Control module | Signal type | Ignition off Active/not active | Ignition on Active/not active | Other |
|---|---|---|---|---|---|
| #21 | C1 | Reserve | - | - | - |
| #22 | C2 | Reserve | - | - | - |
| #23 | C3 | Door mirror potentiometer, reference voltage | Ulow | U = 5 V | Not used on all vehicles. |
| #24 | C4 | Reserve | - | - | - |
| #25 | C5 | Ground, door mirror potentiometer | U low | U low | Not used on all vehicles. |
| #26 | C6 | Reserve | - | - | - |
| #27 | C7 | Reserve | - | - | - |
| #28 | C8 | Reserve | - | - | - |
| #29 | C9 | Reserve | - | - | - |
| #30 | C10 | Door mirror potentiometer (right/left) | U low | U = 1 - 4 V | Not used on all vehicles. |
| #31 | C11 | Reserve | - | - | - |
| #32 | C12 | Door mirror potentiometer (up/down) | U low | U = 1 - 4 V | Not used on all vehicles. |
| #33 | C13 | Reserve | - | - | - |
| #34 | C14 | Reserve | - | - | - |