Connector B, #B1-B30
WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.
All values given below are between the terminal in column 1 and terminal #20 (signal ground) unless otherwise stated in brackets after the table entry.
NOTE:
It is important to connect the breakout box and check 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 approx. 0 V | % duty = | duty cycle (pulse ratio) as a percentage (%) |
| t = | time in milliseconds (ms) | - | - |
| Terminal. | Signal type | Ignition on. | Engine idling. | Remarks | Scrolling value in Volvo Scan Tool (ST) |
|---|---|---|---|---|---|
| #B1 | Signal, torque limiting, turbocharger (TC) to engine control module (ECM) | U=0-2 V under Ubat | U=Ulow | Ulow on torque limiting request (1st gear, Winter mode and high oil temperature) | 41 |
| #B2 | Signal, torque limiting (TC1) (To engine control module (ECM)) | EZ129K: U≈5.0 V Fenix 5.2: U=0-2 V under Ubat Motronic 4.3: U=0-2 V under Ubat Motronic 4.4: U=0-2 V under Ubat | Ulow on torque limiting request | 38 | |
| #B3 | Signal, torque limiting (TC2) (To engine control module (ECM)) | EZ129K: U≈5.0 V Fenix 5.2: U=0-2 V under Ubat Motronic 4.3: U=0-2 V under Ubat Motronic 4.4: U=0-2 V under Ubat | Ulow on torque limiting request | 39 | |
| #B4 | Signal, torque limiting acknowledgment (TCM) (From engine control module (ECM)) | EZ129K: U≈5.0 V Fenix 5.2: U=0-2 V under Ubat Motronic 4.3: U=0-2 V under Ubat Motronic 4.4: U=0-2 V under Ubat | Ulow when request has been received | 40 | |
| #B5 | - | - | - | - | - |
| #B6 | - | - | - | - | - |
| #B7 | Control signal, automatic transmission warning lamp | Lamp lit: U=0-2 V Lamp out: Ubat | If the warning lamp flashes the value varies. | 34 | |
| #B8 | - | - | - | - | - |
| #B9 | - | - | - | - | - |
| #B10 | - | - | - | - | - |
| #B11 | - | - | - | - | - |
| #B12 | Signal, load (TQ) (From engine control module (ECM)) | LH3.2: U=0-1 V under Ubat
Fenix 5.2: U=1-2 V under Ubat
Motronic 4.3: U=0-1 V Motronic 4.4: U=0-1 V f≈35 Hz |
f increases with speed and load | 35 | |
| #B13 | - | - | - | - | - |
| #B14 | Signal, constant idle speed compensation P/N position (To engine control module (ECM)) | P/N position: LH 3.2: U=5.0 V Fenix 5.2: U=0-2 V under Ubat Motronic 4.3: U=0-2 V under Ubat Motronic 4.4: U=0-2 V under Ubat Other positions: LH 3.2: U≈0.1 V Fenix 5.2: U=0-1 V Motronic 4.3: U=0-1 V Motronic 4.4: U=0-1 V | - | 33 | |
| #B15 | Signal, malfunction indicator lamp (MIL) request (MILR) (To engine control module (ECM). Only in markets with OBD II) | U≈0-1 V | U=0-2 V under UbatNote! Other values apply if there are diagnostic trouble codes (DTCs) stored in the transmission control module (TCM) | - | 40 |
| #B16 | Signal, mode selector (MS2) | Mode selector position E and W: Ulow Other position: U=0-2 V under Ubat | The signal is grounded in position E and when W is pressed | 8 | |
| #B17 | Signal, mode selector (MS1) | Mode selector positions S and W: Ulow Other position: U=0-2 V under Ubat | The signal is grounded in position S and when W is pressed | 7 | |
| #B18 | - | - | - | - | - |
| #B19 | - | - | - | - | - |
| #B20 | Signal, throttle position (TP) sensor (VTH) (from engine control module (ECM)) | U≈0.5 V at closed throttle position (CTP) (idling) U≈4.5 V at wide open throttle (WOT) | - | 14 | |
| #B21 | - | - | - | - | - |
| #B22 | Diagnostic lead K-link Volvo on-board diagnostic (OBD) system and OBD II | U=0-2 V under Ubat If the fault-tracing instrument is connected to the data link connector (DLC) other values apply. | - | - | |
| #B23 | - | - | - | - | - |
| #B24 | - | - | - | - | - |
| #B25 | - | - | - | - | - |
| #B26 | Signal, stop (brake) light switch | Open: U≈U low Closed: U=0-2 V under Ubat | Stop (brake) light switch closes during braking and the control module receives a signal. | 11 | |
| #B27 | - | - | - | - | - |
| #B28 | - | - | - | - | - |
| #B29 | - | - | - | - | - |
| #B30 | Signal, kickdown switch (KD) | Open: U=0-2 V under Ubat Closed: U=Ulow | Kickdown switch (KD) closes on kickdown and the signal is grounded. | 12 | |