Signal specification
All the values listed below are between the terminal in column 1 and terminal #A53 (signal ground), unless otherwise indicated in brackets.
NOTE:
Connect the breakout box and check the ground connections before starting to measure.
| U = | DC voltage in volts (V) | UAC = | AC voltage in volts (V) |
| Ubat = | battery voltage | F = | frequency in Hertz (Hz) |
| Ulow = | voltage approximately 0 V | % duty = | duty cycle (pulse ratio) in percent (%) |
| t = | time in milliseconds (ms) |
Connector A terminals #A35 - #A70
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Engine idling | Miscellaneous |
|---|---|---|---|---|---|
| #A35 | #A35 | Power supply | Ubat | Model year dependent: Up to and incl. 2004 Supply from CEM relay CMI21(2/101) From and incl. 2005 Supply from connection #B20 on Central electronic module (CEM) |
|
| #A37 | #A37 | Signal, oil temperature sensor | Cold gearbox (+20°C): U=2.4 V Hot gearbox (+100°C): U=0.3-0.5 V |
U decreases with increasing temperature | |
| #A39 | #A39 | Signal, gearbox output speed sensor signal | Tooth against sensor: 14 mA Cover against sensor: 7 mA |
The sensor generates a pulsed signal (quadratic wave) with fixed pulse ratio when the pulse wheel rotates. Frequency increases with speed | |
| #A41 | #A41 | Signal, gearbox input speed sensor | Tooth against sensor: 14 mA Cover against sensor: 7 mA |
The sensor generates a pulsed signal (quadratic wave) with fixed pulse ratio when the pulse wheel rotates. Frequency increases with speed | |
| #A44 | #A44 | Signal (-) from gear position sensor via Transmission Control Module (TCM) to Central Electronic Module (CEM) | Gear-shift selector in position P = Ulow In all other positions Ubat |
Start immobilizer. The signal is grounded when the gear selector is in position P and N, which makes engine start possible. | |
| #A45 | #A45 | Signal, gear-shift position sensor C | Gear selector positions D, 3, L: U=0-0.5 V Other positions: U=0-2 V below Ubat |
The signal is grounded in positions D, 3, L | |
| #A46 | #A46 | Signal, gear-shift position sensor A | Gear selector position P, R, 3, L: U=0-0.5 V Other positions: U=0-2 V below Ubat |
Signal is grounded in positions N, D | |
| #A50 | #A50 | Control signal, shift solenoid S1 | Activated: U=0-2 V below Ubat Not activated: Ulow |
The solenoid receives voltage when activated by the control module in 1st and 4th gears | |
| #A51 | #A51 | Control signal, lock-up solenoid SL | Activated: U=0-2 V below Ubat Not activated: Ulow |
The solenoid is supplied with voltage when it is activated by the control module | |
| #A52 | #A52 | Control signal, line pressure solenoid STH | U=1.6 V | Voltage decreases with increasing throttle opening | |
| #A53 | #A53 | Signal ground | Ulow | - | |
| #A54 | #A54 | Signal ground for the gear selector module (GSM) | Ulow | From and incl. 2001 Connection #A6 on the gear selector module (GSM) |
|
| #A55 | #A55 | Signal ground oil temperature sensor | Ulow | Ground | |
| #A57 | #A57 | Power supply, vehicle speed sensor (VSS) | U≈1 V | N/A | |
| #A59 | #A59 | Power supply, engine speed (RPM) sensor | U≈1 V | N/A | |
| #B3 | #A63 | Signal, gear-shift position sensor PA | Gear selector positions P, N, 3: U=0-0.5 V Other positions: U=0-2 V below Ubat |
The signal is grounded in positions P, N, 3 | |
| #B4 | #A64 | Signal, gear-shift position sensor B | Gear selector position R, N, D, 3, L: U=0-0.5 V Other positions: U=0-2 V below Ubat |
Signal grounded in positions R, N, D, 3 | |
| #B5 | #A65 | Pressure sensor signal PS4 | Active = Ubat , Not active = 0 V | Pressure sensor PS4 is usually closed. It transmits a signal to the control module indicating the position of solenoid SL. When lock-up is requested, the pressure sensor must be Not active . When there is no lock-up, the pressure sensor must be Active . | |
| #B8 | #A68 | Control signal, shift solenoid S2 | Activated: U=0-2 V below Ubat Not activated: Ulow |
The solenoid receives voltage when activated by the control module in 1st and 2nd gears | |
| #B10 | #A70 | Signal ground, line pressure solenoid STH | F=300 Hz Frequency is constant, irrespective of driving conditions. The signal duty cycle is modified when the line pressure is adapted | N/A | |
Connector B terminals #B1 - #B22
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Engine idling | Miscellaneous |
|---|---|---|---|---|---|
| #B11 | #B1 | Communication cable for the control modules (CAN) | 2-3 V | Between the transmission control module (TCM) and the engine control module (ECM) | |
| #B12 | #B2 | Communication cable for the control modules (CAN) | 2-3 V | Between the transmission control module (TCM) and the anti-lock brake system module (ABS) as well as the central electronic module (CEM) | |
| #B23 | #B13 | Communication cable for the control modules (CAN) | 2-3 V | Between the transmission control module (TCM) and the engine control module (ECM) | |
| #B24 | #B14 | Communication cable for the control modules (CAN) | 2-3 V | Between the transmission control module (TCM) and the anti-lock brake system module (ABS) as well as the central electronic module (CEM) | |
| #B31 | #B21 | VOLCANO lite communication cable | 8-11 V | Between the transmission control module (TCM) and the gear selector module (GSM) | |