Signal Description. Accessory Electronic Module (AEM)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Volvo S80, 2005 Volvo S80, 2004 Volvo S80, 2003 Volvo S80, and 2002 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
It is important to connect the breakout box and check the ground terminals before taking readings.
Other information
| U= | DC voltage in volts (V) | UAC = | AC voltage in volts (V) |
| Ubat = | Battery voltage (V) | f = | Frequency in Hertz (Hz) |
| Ulow = | Voltage approximately 0 V | % duty = | Duty cycle (pulse ratio) as a percentage (%) |
| t = | Time in milliseconds (ms) | - | - |
| Connector A, terminals #A1-#A4 The following values are measured between the relevant terminal in column 1 and terminal #A1 (power ground) unless otherwise stated.
NOTE:
Check the ground terminals before starting to take readings with the breakout box.
|
| Terminal in the breakout box | Terminal in connector | Signal type | Ignition off | Ignition on | Other | ||
|---|---|---|---|---|---|---|---|
| - | - | - | Activated | Not activated | Activated | Not activated | - |
| #51 | #A1 | Power ground | Ulow | Ulow | Ulow | Ulow | - |
| #52 | #A2 | 30-supply to the accessory electronic module | Ubat | Ubat | Ubat | Ubat | - |
| #53 | #A3 | Communication CAN L low speed network | 1.5-2.5 V | 1.5-2.5 V | 1.5 V, at communication | ||
| #54 | #A4 | Communication CAN_H low speed network | 2.5-3.5 V | 2.5-3.5 V | 3.5 V, at communication | ||
| Connector B, terminals #B1 - #B50 The following values are measured between the relevant terminal in column 1 and terminal #A1 (power ground) unless otherwise stated.
NOTE:
Check the ground terminals before starting to take readings with the breakout box.
|
| Terminal in the breakout box | Terminal in connector | Signal type | Ignition off | Ignition on | Other | ||
|---|---|---|---|---|---|---|---|
| - | - | - | Activated | Not activated | Activated | Not activated | - |
| #1 | #B1 | Remote start, power supply | Ubat | Ubat | Ubat | Ubat | Remote start module always activated |
| #2 | #B2 | Remote start, ground | Ulow | Ulow | Ulow | Ulow | - |
| #3 | #B3 | Remote start, digital input signal | Ulow | U=3 V or U=5 V | Ulow | U=3 V or U=5 V | Pulses with variable time periods |
| #4 | #B4 | Electric engine block heater, ground | Ulow | Ulow | Ulow | Ulow | - |
| #5 | #B5 | Electric engine block heater, control signal | Ubat | Ulow | Ubat | Ulow | - |
| #6 | #B6 | Reverse (reversing) warning system, power supply | Ulow | Ulow | Ubat | Ulow |
NOTE:
Does not apply to S80 2004-
|
| #7 | #B7 | Reverse (reversing) warning system buzzer, digital input signal | Ubat | Ubat | Ulow | Ubat |
NOTE:
Does not apply to S80 2004-
|
| #8 | #B8 | Reverse (reversing) warning system, ground | Ulow | Ulow | Ulow | Ulow |
NOTE:
Does not apply to S80 2004-
|
| #9 | #B9 | - | - | - | - | - | - |
| #10 | #B10 | - | - | - | - | - | - |
| #11 | #B11 | Car phone mute, digital input signal | Ubat | Ubat | Ulow | Ubat | - |
| #12 | #B12 | Mute signal (radio), digital output signal | Ubat | Ubat | Ulow | Ubat | - |
| #13 | #B13 | Rheostat signal (radio), digital output signal | Ulow | Ulow | PWM = 6.3%-100% |
PWM = 6.3%-100% |
Pulse width modulation (PWM) signal |
| #14 | #B14 | Speed signal (radio), digital output signal | Ubat | Ubat | PWM = 30%-70% |
PWM = 30%-70% |
Pulse width modulation (PWM) signal |
| #15 | #B15 | Alarm signal P0, digital output signal | Ulow | Ubat | Ubat | Ubat | Status "Ignition off " on condition the ignition key is out |
| #16 | #B16 | Alarm signal P1, digital output signal | Ulow | Ubat | Ubat | Ubat | Status "Ignition off " on condition the ignition key is out |
| #17 | #B17 | - | - | - | - | - | - |
| #18 | #B18 | - | - | - | - | - | - |
| #19 | #B19 | - | - | - | - | - | - |
| #20 | #B20 | - | - | - | - | - | - |
| #21 | #B21 | - | - | - | - | - | - |
| #22 | #B22 | - | - | - | - | - | - |
| #23 | #B23 | - | - | - | - | - | - |
| #24 | #B24 | - | - | - | - | - | - |
| #25 | #B25 | - | - | - | - | - | - |
| #26 | #B26 | - | - | - | - | - | - |
| #27 | #B27 | - | - | - | - | - | - |
| #28 | #B28 | - | - | - | - | - | - |
| #29 | #B29 | - | - | - | - | - | - |
| #30 | #B30 | Aerial amplifier, power supply | Ulow | Ulow | Ubat | Ubat | U=Ubat at ignition key position I |
| #31 | #B31 | - | - | - | - | - | - |
| #32 | #B32 | - | - | - | - | - | - |
| #33 | #B33 | Alarm signal S0, digital output signal | U bat | U bat | U low | U bat | - |
| #34 | #B34 | Alarm signal P1, digital output signal | U low | U low | U bat | U low | - |
| #35 | #B35 | - | - | - | - | - | - |
| #36 | #B36 | - | - | - | - | - | - |
| #37 | #B37 | - | - | - | - | - | - |
| #38 | #B38 | - | - | - | - | - | - |
| #39 | #B39 | - | - | - | - | - | - |
| #40 | #B40 | - | - | - | - | - | - |
| #41 | #B41 | - | - | - | - | - | - |
| #42 | #B42 | - | - | - | - | - | - |
| #43 | #B43 | - | - | - | - | - | - |
| #44 | #B44 | - | - | - | - | - | - |
| #45 | #B45 | - | - | - | - | - | - |
| #46 | #B46 | - | - | - | - | - | - |
| #47 | #B47 | - | - | - | - | - | - |
| #48 | #B48 | - | - | - | - | - | - |
| #49 | #B49 | - | - | - | - | - | - |
| #50 | #B50 | - | - | - | - | - | - |