Mazda CX-5 Service & Repair Manual: Main Relay Control [Skyactiv G 2.0]
Outline
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Supplies power to each part by switching the main relay on/off at the optimal timing according to the vehicle conditions.
Block Diagram
Operation
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When the ignition is switched ON, the main relay turns on and electrical power is supplied to each sensor and device.
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When the ignition is switched off from ON, an on-request signal is received from each control (such as drive-by-wire control, electric variable valve timing control) and the main relay turns on for a specified period.
Front Body Control Module (Fbcm) Removal/Installation
CAUTION:
If configuration is not performed when the front body control module (FBCM)
is replaced with a new one, the vehicle specification information is not stored
in the front body con ...
Multiplex Communication System
A controller area network (CAN) system has been adopted in which multiplex
communication is performed using a single communication path.
A high-speed controller area network (HS-CAN) ...
Other materials:
Water Pump
Purpose, Function
The water pump operates by obtaining drive force from the engine via the
drive belt to pump engine coolant.
Construction
The water pump is installed to the engine front.
The water pump consists of the following parts:
A hard plasti ...
Shift Solenoid No.4 [Fw6 A EL, Fw6 Ax EL]
Purpose/Function
Shift solenoid No.4 adjusts the hydraulic pressure in the high clutch circuit
and the low and reverse brake circuit based on the current demand from the TCM
according to the vehicle conditions.
Construction
Shift solenoid No.4 is installed to the solenoid c ...
Engine Coolant Temperature (ECT) Sensor
Purpose/Function
Detects the ECT as basic information for mainly determining the fuel injection
amount.
Detects the ECT and inputs it to the PCM as an ECT signal.
The ECT sensor No.2 is only used for OBD.
Construction
ECT sensor No.1
Installed to the water out ...
