Output Signals - Volvo B6324S Functional Description

Component
A/C Compressor Control Valve
A/C Relay
Alternator, LIn (bus)
Battery (kl.30)
CAn
CPS - Cam Profile Shifting
Diagnose Module – Tank Lea-
kage (DMTL)
ECM Power
Electronic Throttle Module
Electronic Fan Control Module
(EFCM)
EVAP Canister Purge Valve
Ignition Coils/Power Stages
(1-6)
Instrument panel
Starter Motor Relay
System relay
VVT Control Valves, intake (One
for each bank)
Pump Electronic Module (PEM)
Spark plugs (1-6)
TCM (Automatic transmission
only)
VIS - Variable Intake System
6

Output signals

Purpose
Controlling the A/C compressor displacement. not used by emission related functions.
Connecting and disconnecting A/C compressor. not used by emission related func-
tions.
Exchange of information between the ECM and the other units occurs as well with the
use of LIn serial communication. not used by emission related functions.
Provides the ECM with RAM backup voltage.
Exchange of information between the ECM and other Control units.
Is used to control the CPS valves for variable inlet valve lift.
Detects leakages above 0.5 mm in tank using overpressure.
Main ECM power supply
To control the engine torque at all driving conditions by regulating the throttle plates, and
hence air flow to the engine, with an electrical motor.
The EFCM allows continuously variable control of the fan motor'srotation rate.
To control the purge flow from canister to engine.
The ignition coils store energy from the battery and transform to a high voltage ignition
pulse to the spark plugs out of a control signal from the ECM.
Displays the MIL.
Relay to switch on and off starter motor.
Controlled by the ECM. To switch on and off EMS components.
Is used to control the Intake VVT valve for VVT Timing.
The PEM is a component within a demand controlled fuel supply system (DECOS).
It's a power stage that is used to control the flow rate and pressure of the fuel pump
continuously.
Transfer the high-tension ignition voltage generated within the coil into the cumbustion
chamber. no output signal directly from the ECM.
Receiving signals (through CAn) from ECM. hard wired Park/neutral signal from TCM
to ECM.
Is used to control the variable intake systems two electricaly controled tuning valves.