Connectors, Transmission control module (TCM)
All values listed below are between the terminal in column 1 and terminal #15 (power 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) | UAC = | AC voltage in volts (V) |
| Ubat = | battery voltage | f = | frequency in Hertz (Hz) |
| Ulow = | voltage approximately 0 V | % duty = | duty cycle (pulse ratio) as a percentage (%) |
| t = | time in milliseconds (ms) |
Connector Transmission control module (TCM) terminals #1- #42
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Other |
|---|---|---|---|---|
| #1 | #1 | Power supply | Ubat | |
| #2 | #2 | Control signal, line pressure solenoid SLT | f=300Hz Frequency is constant, independent of driving conditions. The signal duty cycle is modified when the line pressure is adapted | |
| #3 | #3 | Control signal, lock-up solenoid SLU | F = 300Hz The frequency is constant, irrespective of driving conditions. The signal duty cycle is modified when the line pressure is adapted | |
| #4 | #4 | Control signal, line pressure solenoid SLS | f = 300HZ The frequency is constant, irrespective of driving conditions. The signal duty cycle is modified when line pressure is adapted. | |
| #5 | #5 | 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 |
| #6 | #6 | 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 when shifting between 2nd, 3rd and 4th gears. And when back-up gear is selected . |
| #7 | #7 | 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 |
| #8 | #8 | 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 |
| #9 | #9 | Power supply, speed sensor (SP1) | U≈1 V <Ubat | - |
| #10 | #10 | 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 |
| #11 | #11 | Power supply, engine speed (RPM) sensor (SP2) | U≈1 V <Ubat | - |
| #12 | #12 | 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 fixed pulse ratio when the pulse wheel rotates. Frequency increases with speed |
| #13 | #13 | Diagnostic lead Volvo on-board diagnostic (OBD) system |
U=0-2 V below Ubat Other values apply if the fault-tracing instrument is connected to the data link connector (DLC) |
|
| #14 | #14 | KL 15 Ignition switch voltage | U bat | |
| #15 | #15 | KL 31 Power ground | U low | |
| #22 | #22 | 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 |
| #23 | #23 | Signal, kickdown switch (KD) (KD) |
Open: U=0-2 V below Ubat Closed: Ulow |
The kickdown switch (KD) is closed on kickdown and the signal is grounded |
| #24 | #24 | Signal, oil temperature sensor (OT) | Cold transmission (+20°C): U=2.4 V Hot transmission (+100°C): U=0.3-0.5 V |
U decreases with increasing temperature |
| #25 | #25 | Control signal, automatic transmission warning lamp | Lamp lit: U = 0-2V Lamp not lit: Ubat |
If the warning lamp flashes the value changes |
| #26 | #26 | Control module communication cable CAN L | U = 2-3V average voltage | Between the transmission control module (TCM) and h engine control module (ECM) |
| #27 | #27 | Control module communication cable CAN H | U = 2-3V average voltage | Between the transmission control module (TCM) and engine control module (ECM) |
| #30 | #30 | Signal ground, throttle solenoid (SLTG) | Ulow | - |
| #31 | #31 | Signal ground, lock-up solenoid (SLUG) | Ulow | - |
| #32 | #32 | Signal ground, line pressure solenoid (SLSG) | Ulow | - |
| #33 | #33 | 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 |
| #34 | #34 | 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 |
| #35 | #35 | 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 |
| #36 | #36 | 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 |
| #37 | #37 | Signal, Winter mode selector | Activated: Ulow Not activated: U=0-2 V below Ubat |
The signal is grounded when Winter mode switch is pressed |
| #38 | #38 | Stop (brake) light switch signal | Open: U••= U low Closed: U = 0-2 V below Ubat |
The stop lamp switch closes during braking |
| #39 | #39 | Signal ground oil temperature sensor | Ulow | Ground |