SIGNAL SPECIFICATION, PARKING ASSISTANCE MODULE (PAM)
All values specified below are between the relevant terminal and terminal #A8 (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 475
| Control module terminal | Signal type | Ignition off | Ignition on | Other |
|---|---|---|---|---|
| #A1 | 15 supply | U low | U bat | Ignition position II and III. |
| #A2 | ||||
| #A3 | ||||
| #A4 | ||||
| #A5 | ||||
| #A6 | ||||
| #A7 | CAN L | During communication the voltage is 1.0-2.5 V. | ||
| #A8 | Ground | U low | U low | |
| #A9 | ||||
| #A10 | ||||
| #A11 | ||||
| #A12 | ||||
| #A13 | ||||
| #A14 | CAN H | During communication the voltage is 2.5-4.0 V. | ||
| #A15 | ||||
| #A16 |
SIGNAL TABLE CONNECTOR A
Scheme 476
| Control module terminal | Signal type | Ignition off | Ignition on | Other |
|---|---|---|---|---|
| #B1 | Signal ground, front parking sensor | U low | U low | |
| #B2 | Voltage supply, front parking sensors | U low | U bat | |
| #B3 | ||||
| #B4 | ||||
| #B5 | Signal, parking sensor 8 (outer right front) | |||
| #B6 | Signal, parking sensor 7 (inner right front) | |||
| #B7 | Signal, parking sensor 6 (inner left front) | |||
| #B8 | Signal, parking sensor 5 (outer left front) | |||
| #B9 | ||||
| #B10 | ||||
| #B11 | ||||
| #B12 |
SIGNAL TABLE CONNECTOR B, CENTER TERMINAL
Scheme 477
| Control module terminal | Signal type | Ignition off | Ignition on | Other |
|---|---|---|---|---|
| #C1 | ||||
| #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 | ||||
| #C7 | ||||
| #C8 | Signal ground, rear parking sensors | U low | U low | |
| #C9 | ||||
| #C10 | ||||
| #C11 | Voltage supply, rear parking sensors | U low | U bat | |
| #C12 |
SIGNAL TABLE CONNECTOR C
SIGNAL SPECIFICATION, ENGINE CONTROL MODULE (ECM)
All the values given below are measured between the terminal in column 1 (Term. control module) and terminal #A5 (#A5) unless otherwise indicated in column 6 (Other).
Control module connections
- #A1-#A52 correspond to adapter connector A (breakout box #A1-#A52).
- #B1-#B42 correspond to adapter connector B (breakout box #B1-#B42).
Note. It is important to connect the breakout box and check the ground terminals before taking readings.
| U= | DC voltage in volts (V) | U low = | Voltage approximately 0 V |
|---|---|---|---|
| U bat = | Battery voltage (V) |
| Control module terminal | Breakout box terminal | Signal type | Ignition on | Idling | Other |
|---|---|---|---|---|---|
| #A1 | #A1 | Ignition coil cylinders 2 and 3, control signal | 12 V | ||
| #A2 | #A2 | ||||
| #A3 | #A3 | Ignition coil cylinders 1 and 3, control signal | 12 V | ||
| #A4 | #A4 | ||||
| #A5 | #A5 | Power ground 4 | U=U low | U=U low | |
| #A6 | #A6 | Throttle unit, potentiometer 1 and 2, signal ground | |||
| #A7 | #A7 | Generator, control signal | Pulse width modulation (PWM) signal | ||
| #A8 | #A8 | System relay, control signal | U=U low | ||
| #A9 | #A9 | Air conditioning (A/C) relay, control signal | A/C-relay activated: U=U low A/C-relay not activated U=U bat | ||
| #A10 | #A10 | Cooling fan control module, control signal | PWM signal to cooling fan control module. | ||
| #A11 | #A11 | ||||
| #A12 | #A12 | Injector cylinder 4, control signal | U=U bat | T = 1-3 ms | T increases with engine speed and load |
| #A13 | #A13 | Injector cylinder 2, control signal | U=U bat | T = 1-3 ms | T increases with engine speed and load |
| #A14 | #A14 | ||||
| #A15 | #A15 | ||||
| #A16 | #A16 | ||||
| #A17 | #A17 | Air conditioning (A/C) pressure sensor, power supply | 5 V | ||
| #A18 | #A18 | ||||
| #A19 | #A19 | Power supply, sensor | 5 V | ||
| #A20 | #A20 | Pressure/temperature sensor, intake pipe, pressure signal | Working range: 10-115 kpa (0.40 V - 4.65 V). | ||
| #A21 | #A21 | Throttle unit, potentiometer 2, signal | |||
| #A22 | #A22 | Throttle unit, potentiometers 1 and 2, power supply | 5 V | ||
| #A23 | #A23 | ||||
| #A24 | #A24 | ||||
| #A25 | #A25 | ||||
| #A26 | #B26 | ||||
| #A27 | #B27 | Injector cylinder 1, control signal | U=U bat | T = 1-3 ms | T increases with engine speed and load |
| #A28 | #A28 | Injector cylinder 3, control signal | U=U bat | T = 1-3 ms | T increases with engine speed and load |
| #A29 | #A29 | ||||
| #A30 | #A30 | ||||
| #A31 | #A31 | Knock sensor, signal ground (-) | |||
| #A32 | #A32 | Knock sensor, signal (+) | |||
| #A33 | #A33 | Generator, control signal | |||
| #A34 | #A34 | ||||
| #A35 | #A35 | Ground | U=U low | U=U low | |
| #A36 | #A36 | ||||
| #A37 | #A37 | ||||
| #A38 | #A38 | Rear heated oxygen sensor (HO2S), signal (+) | |||
| #A39 | #A39 | Air conditioning (A/C) pressure sensor, ground | |||
| #A40 | #A40 | Brake light signal from central electronic module (CEM) | U=U bat | ||
| #A41 | #A41 | ||||
| #A42 | #A42 | Power ground 3 | U=U low | U=U low | |
| #A43 | #A43 | ||||
| #A44 | #A44 | ||||
| #A45 | #A45 | Ground | U=U low | U=U low | |
| #A46 | #A46 | Ground | U=U low | U=U low | |
| #A47 | #A47 | Accelerator pedal (AP) position sensor | Pulse width modulation (PWM) signal | ||
| #A48 | #A48 | Electronic throttle unit, potentiometer 1 | |||
| #A49 | #A49 | Front heated oxygen sensor (HO2S), signal (+) | |||
| #A50 | #A50 | ||||
| #A51 | #A51 | Power supply, sensor | 5 V | ||
| #A52 | #A52 | Pressure/temperature sensor, inlet manifold, power supply | 5 V |
CONNECTOR A
| Control module terminal | Breakout box terminal | Signal type | Ignition on | Idling | Other |
|---|---|---|---|---|---|
| #B1 | #B1 | Ground | U=U low | U=U low | |
| #B2 | #B2 | Front heated oxygen sensor (HO2S), signal ground | U=U low | U=U low | |
| #B3 | #B3 | Pressure/temperature sensor, inlet manifold, temperature signal | |||
| #B4 | #B4 | Ground | U=U low | U=U low | |
| #B5 | #B5 | Ground | U=U low | U=U low | |
| #B6 | #B6 | Front heated oxygen sensor preheating, control signal | U=U bat | Preheating off: U=U bat . Preheating on: U=U low . | Frequency increases at high engine speed. |
| #B7 | #B7 | Power ground 1 | U=U low | U=U low | |
| #B8 | #B8 | Power supply via system relay | U=U bat | U=U bat | 12 V power supply to engine control module (ECM) from system relay. |
| #B9 | #B9 | Power supply (30- supply) | U=U bat | U=U bat | Power supply 12 V directly from the battery. |
| #B10 | #B10 | ||||
| #B11 | #B11 | ||||
| #B12 | #B12 | ||||
| #B13 | #B13 | Engine coolant temperature (ECT) sensor, signal ground | |||
| #B14 | #B14 | Rear heated oxygen sensor (HO2S), signal ground | |||
| #B15 | #B15 | ||||
| #B16 | #B16 | EVAP valve, control signal | U=U bat | ||
| #B17 | #B17 | Pressure/temperature sensor, inlet manifold, ground | |||
| #B18 | #B18 | ||||
| #B19 | #B19 | HS CAN L (-) | |||
| #B20 | #B20 | ||||
| #B21 | #B21 | Power supply (wake up, 15-feed) | 12 V | 12 V | |
| #B22 | #B22 | Air conditioning (A/C) pressure switch, low pressure side, signal | |||
| #B23 | #B23 | ||||
| #B24 | #B24 | ||||
| #B25 | #B25 | Power supply, sensor | 5 V | ||
| #B26 | #B26 | Impulse sensor, signal ground | U=sinus voltage | Frequency increases at high engine speed. | |
| #B27 | #B27 | Camshaft position (CMP) sensor, signal ground | |||
| #B28 | #B28 | ||||
| #B29 | #B29 | Power steering switch, signal | |||
| #B30 | #B30 | Starter relay, control signal | |||
| #B31 | #B31 | HS CAN H (+) | |||
| #B32 | #B32 | ||||
| #B33 | #B33 | ||||
| #B34 | #B34 | Air conditioning (A/C) pressure sensor, signal | |||
| #B35 | #B35 | Oil pressure switch | Supplied U bat from the engine control module (ECM). Switch closed (oil pressure): U low Switch open circuit (no/low oil pressure): U bat . | ||
| #B36 | #B36 | Engine coolant temperature (ECT) sensor, signal | Approx. 3.1 V at +20°C Approx. 2.9 V at +25°C. Approx. 0.8 V at +80°C. | ||
| #B37 | #B37 | Impulse sensor, signal (+) | U=sinus voltage | Frequency increases at high engine speed. | |
| #B38 | #B38 | Camshaft position sensor, signal (+) | |||
| #B39 | #B39 | Rear heated oxygen sensor preheating, control signal | U=U bat | Preheating off: U=U bat Preheating on: U=U low | |
| #B40 | #B40 | Power ground 2 | U=U low | U=U low | |
| #B41 | #B41 | Throttle motor, power supply | |||
| #B42 | #B42 | Throttle motor, ground |
CONNECTOR B
See also:
• CHECKING WIRING AND TERMINALS