2012 SSANGYONG KORANDO engine

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5. INSPECTION - REGULATING VOLTAGE
Perform the basic inspection. -
Setting up the testers ▶
Preparation ▶
Set up the ammeter and voltmeter as shown
in the figure. 1.
Inspection ▶
Turn the ignition ON and measure the voltage on the voltmeter. 1.
Start the engine and turn all electric devices OFF.
Increase the engine speed to 2,700 rpm and maintain the speed. Measure the voltage when the
output current from alternator decrease below 30A. 2.
3.
Specified valueover 12V
Specified value11.5 ~ 15.5V
Make sure to set up the tester while keeping
its polarity.

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8. DTC SETTING CONDITIONS
Charge warning lamp ON condition ▶
Turn the ignition ON (Engine stopped)
Open or short circuit of L terminal wiring, open or short internal circuit of alternator (fixed control of
13.8V)
Open or short circuit of F terminal wiring, no feedback output signal 1.
2.
3.

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2. OPERATING PROCESS
System diagram ▶
Operation ▶
EEM monitors the electric loads and battery conditions and controls the voltage to improve the fuel
economy and battery charging efficiency.
EBS on “-“ terminal of battery sends the battery information (voltage, current, tem
perature and
SOC) to engine ECU with LIN communication.
Engine ECU outputs the information from EBS and regulating control signal (PWM) according to the
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Engine ECU controls the magnetic resistance between stator coil and rotor coil by controlling the
current in rotor coil according to PWM duty value.
The alternating voltage induced to stator coil is converted to direct voltage by rectifier. And, EBS
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Operation of charge warning lamp ▶
ECU checks the generating voltage from alternator and circuit conditions and sends the warning lamp ON
signal to meter cluster through CAN line.Basic control logic according to the driving conditions ▶
Engine ECU determines the engine loads according to the fuel injection volume and engine speed. It
charges the battery by increasing the generating voltage during deceleration. To improve the fuel
economy by reducing the alternator load during acceleration, engine ECU decreases the generating
voltage and consumes the battery voltage.

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2) CAN Communication Wiring Diagram
Splice pack Wiring Location
S101 Floor wiring (LH) Under fuse and relay box in engine compartment
S102 Floor wiring (RH) Inside of right fender
S201 Main wiring Behind the instrument cluster (cowl cross member)
S202 Main wiring Behind the instrument cluster (cowl cross member)
S205 Floor wiring (LH) Bottom of driver seat (front right)

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2. CHECKING CABLES AND WIRES
Check for loose connection or rust.
Check terminals and wires for corrosion due to electrolyte leakage.
Check terminals and wires for open circuit.
Check the wire insulation and coat for damage, cracks or deterioration.
Check if the conductive parts of the terminals do not contact with vehicle body or other metal parts.
Check that the grounding part has continuity with mounting bolts and vehicle body.
Check that wires are properly routed.
Make sure that wires are securely fixed to avoid contact with sharp body parts and high-temperature
parts, such as the exhaust manifold and exhaust pipes.
The rotating parts, such as fan pulley and fan belt, perturbative parts and wiring should be secured
tightly at regular intervals.
Secure the wiring between the fixed parts, such as the vehicle body, and vibrating parts, such as the
engine, after slackening it slightly to prevent it from being damaged. -
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ICM box
Interior fuse box
Fuse box in engine compartment
The fuse and relay boxes consist of three boxes: Integrated Control Module (ICM) box in which the
relays of rear wiper, rear fog lamp, mirror folding, ACC, IGN1 & 2, horn, tailgate, power outlet, shift lock
(A/T) are integrated, relay & fuse box in engine compartment and interior fuse box.
2. SYSTEM LAYOUT1. OVERVIEW

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3. OPERATING PROCESS
1) Fuse Box In Engine Compartment
The relay & fuse box in engine compartment is located in the left side of the engine compartment. The
wiper relay, horn relay, fog lamp relay, tail lamp relay and PTC relay are included in the PCB. The B+
supply is provided through the ALT+ (A) line, not by an extra fuse.
Capacity and name of engine compartment fuse and relay ▶