Alfa Romeo GT 2.0 JTS – STARTING AND RECHARING – – Mechanical gearbox – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION

Wiring diagram - STARTING AND RECHARING - Alfa Romeo GT 2.0 JTS

STARTING AND RECHARING - WIRING DIAGRAM Alfa Romeo GT 2.0 JTS

Components - STARTING AND RECHARING - Alfa Romeo GT 2.0 JTS

Component code	Name	Assembly reference
A1	BATTERY (+)
A10	ALTERNATOR	-
A10	ALTERNATOR
A20	STARTER'' MOTOR
B1	JUNCTION UNIT	-
B1	JUNCTION UNIT
B1	JUNCTION UNIT
B2	JUNCTION UNIT UNDER DASHBOARD
B5	MAXI FUSE-1 BOX	-
B99	MAXIFUSE BOX ON BATTERY
D4	FRONT/ENGINE CONNECTION ( CONNECTORS )	-
D7	RECHARGING FRONT CONNECTION ( CONNECTORS )	-
E50	INSTRUMENT PANEL
H1	IGNITION SWITCH
J5	STARTING ENABLEMENT RELAY ( FRONT )	-
M1	BODY COMPUTER
M54	SELESPEED TRANSMISSION CONTROL UNIT	2127E

Location of components - STARTING AND RECHARING - Alfa Romeo GT 2.0 JTS

STARTING AND RECHARING - LOCATION OF COMPONENTS Alfa Romeo GT 2.0 JTS

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Components - STARTING AND RECHARING - Alfa Romeo GT 2.0 JTS

Component code	Name	Assembly reference
A1	BATTERY (+)
A10	ALTERNATOR	-
A10	ALTERNATOR
A20	STARTER'' MOTOR
B1	JUNCTION UNIT	-
B1	JUNCTION UNIT
B1	JUNCTION UNIT
B2	JUNCTION UNIT UNDER DASHBOARD
B5	MAXI FUSE-1 BOX	-
B99	MAXIFUSE BOX ON BATTERY
D4	FRONT/ENGINE CONNECTION ( CONNECTORS )	-
D7	RECHARGING FRONT CONNECTION ( CONNECTORS )	-
E50	INSTRUMENT PANEL
H1	IGNITION SWITCH
J5	STARTING ENABLEMENT RELAY ( FRONT )	-
M1	BODY COMPUTER
M54	SELESPEED TRANSMISSION CONTROL UNIT	2127E

Description - STARTING AND RECHARING - Alfa Romeo GT 2.0 JTS

The ignition and recharging circuit comprises the battery, starter motor and alternator.The starter motor consists of a direct current motor supplied by the battery and an excitation solenoid. When the ignition key is turned to the extreme position (START), the starter motor windings are supplied, producing electro-magnetic forces which rotate the motor pinion. At the same time, the solenoid is energized and operates the mechanism for engaging the pinion in the flywheel ring gear, thus turning over the engine.The alternator recharges the battery during normal engine rotation. The alternator shaft (rotor) is turned by the crankshaft by means of a belt. When supplied with an excitation current, the rotor sets up a magnetic field that induces an alternating current in the fixed coil (stator). A diode rectifying bridge located on the back of the alterator transforms the alternating current into a direct current, which is sent to recharge the battery.A voltage regulator, also built into the alternator, maintains a constant voltage supply (about 14V) throughout the load and engine speed ranges.The efficiency of the recharging system is controlled by the Body Computer, which measures the D+ signal coming from the alternator with the engine running (rpm over 700).If a fault is detected, the relevant warning light on the instrument panel is switched on.The Body Computer also acquires the battery voltage value in the 6-18V field.The information is then supplied to the CAN network for the controls unit node on the door which excludes some services in the case of a voltage drop (for example.

Functional description - STARTING AND RECHARING - Alfa Romeo GT 2.0 JTS

When ignition switchH1is turned to the extreme position (AVV) - pin 50 - the solenoid winding is energized - pin 50 - for the starter motorA20.This supply comes from the battery via the line of maxifuse IGN ofB99.Pin 30 ofA20, the actual starter motor, receives the voltage coming directly from the batteryA1.The direct current generated by the alternatorA10 (pin B+) is sent to the batteryA1, passing through the motorA20. When the alternator does not turn, and so does not recharge the battery, an earth signal is sent from pin D+ to the Body Computer - pin 19 of connector A: this is connected via the CAN line to the instrument panelE50and manages, as described above, the switching on of the recharging warning light on the instrument panelE50.