Signal description. Connector 4T65 EV/EV-GT
See Signal description. Connector 4T65 EV/EV-GT
Signal description. Transmission control module (TCM)
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 terminals before taking readings.
| U = | DC voltage in volts (V) | U AC = | AC voltage in volts (V) |
|---|---|---|---|
| U bat = | Battery voltage | F = | Frequency in Hertz (Hz) |
| U low = | Voltage approximately 0 V | % duty = | Duty cycle (pulse ratio) as a percentage (%) |
| T = | Time in milliseconds (ms) |
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Engine idling | Other |
|---|---|---|---|---|---|
| #A35 | #A35 | Power supply | Ubat | Supply from relay 2/101 CEM | |
| #A37 | #A37 | Signal, oil temperature sensor (OT) | 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, vehicle speed sensor (SP1) | 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, engine speed (RPM) sensor (SP2) | Tooth against sensor: 14 mA Cover against sensor: 7 mA | The sensor generates a pulsed signal (quadratic wave) with a fixed pulse ratio when the pulse wheel rotates. Frequency increases with speed | |
| #A45 | #A45 | Signal, gear-shift position sensor C | Gear selector positions D, 4, 3 and L: U=0-0.5 V Other positions: U=0-2 V below Ubat | The signal is grounded in positions D, 4, 3 and L | |
| #A46 | #A46 | Signal, gear-shift position sensor A | Gear selector position P, R, 4, 3: U=0-0.5 V Other positions: U=0-2 V below Ubat | The signal is grounded in positions P, R, 4, and 3 | |
| #A47 | #A47 | Control signal, shift solenoid S4 | Activated: U=0-2 V below Ubat Not activated: Ulow | The solenoid receives voltage when activated by the control module in 3rd, 4th and 5th gears | |
| #A48 | #A48 | Control signal, shift solenoid S3 | Activated: U=0-2 V below Ubat Not activated: Ulow | The solenoid is supplied with voltage when activated by the control module in 1st, 2nd and 3rd gears | |
| #A49 | #A49 | Control signal, line pressure solenoid SLS | F=300 Hz Frequency is constant, independent of driving conditions. The signal duty cycle is modified when the line pressure is adapted | Voltage decreases with increasing throttle opening | |
| #A50 | #A50 | Control signal, shift solenoid S1 | Activated: U=0-2 V below Ubat Not activated: Ulow | The solenoid is supplied with voltage when activated by the control module in 1st gear | |
| #A51 | #A51 | Control signal, lock-up solenoid SLU | F=300 Hz Frequency is constant, independent of driving conditions. The signal duty cycle is modified when the line pressure is adapted | The solenoid is supplied with voltage when it is activated by the control module | |
| #A52 | #A52 | Control signal, line pressure solenoid SLT | F=300 Hz Frequency is constant, independent of driving conditions. The signal duty cycle is modified when the line pressure is adapted | The solenoid is supplied with voltage when it is activated by the control module | |
| #A53 | #A53 | Power ground | Ulow | N/A | |
| #A54 | #A54 | Signal ground for the gear selector module (GSM) | Ulow | From 2001 - Connection #6 on the gear selector module (GSM) | |
| #A55 | #A55 | Signal ground, oil temperature sensor (OTG) | Ulow | Ground | |
| #A57 | #A57 | Power supply, speed sensor (SP1) | Uapprox.1 V | N/A | |
| #A59 | #A59 | Power supply, engine speed (RPM) sensor (SP2) | Uapprox.1 V < Ubat | N/A | |
| #B3 | #A63 | Signal, gear-shift position sensor PA | Gear selector position P, N, 4, L: U=0-0.5 V Other positions: U=0-2 V below Ubat | The signal is grounded in positions P, N, 4, and L | |
| #B4 | #A64 | Signal, gear-shift position sensor B | Gear selector position R, N, D, 3: U=0-0.5 V Other positions: U=0-2 V below Ubat | Signal grounded in positions R, N, D, 3 | |
| #B6 | #A66 | Control signal, shift solenoid S5 | Activated: U=0-2 V below Ubat Not activated: Ulow | The solenoid is supplied with voltage when it is activated by the control module in position R and during shifting from 2nd to 3rd gear | |
| #B7 | #A67 | Signal ground, line pressure solenoid (SLSG) | U=Ulow | N/A | |
| #B8 | #A68 | Control signal, shift solenoid S2 | Activated: U=0-2 V below Ubat Not activated: Ulow | The solenoid is supplied with voltage when activated by the control module in 1st and 5th gears | |
| #B9 | #A69 | Signal ground, lock-up solenoid (SLUG) | U=Ulow | N/A | |
| #B10 | #A70 | Signal ground, throttle solenoid (SLTG) | U=Ulow | N/A | |
Connector A terminals #A35 - #A70
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Engine idling | Other |
|---|---|---|---|---|---|
| #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 | N/A | Between the transmission control module (TCM) and the gear selector module (GSM) | |
| #B32 | #B22 | Diagnostic lead C-link | N/A | N/A | |
Connector B terminals #B1 - #B22