SsangYong Korando III (2010 year). Service manual — part 122

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7) Immobilizer Control

(1) Overview

The Immobilizer System provides an additional theft deterrent to the vehicle in which it is installed and

prevents it from being started by unauthorized persons. The transponder integrated in the key and the

engine control unit have the same code. When the ignition key with the integrated transponder is turned

to the ON position, the ECU (Engine Control Unit) checks the crypto code of the key and, if correct,

allows the vehicle to start the engine.

For details, refer to Chapter "BCM".

(2) Components

Conditions for cooling fan

▶

Immobilizer

antenna

Immobilizer

key

Start motor

Instrument

cluster

BCM

G20DF ECU

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Key approval process

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When turning the ignition switch to ON position, the power is supplied to BCM and ECU. ECU

communicate with the immobilizer key to check if it is valid crypto code. If it is valid, ECU start to control

the engine when turning the ignition switch to START position.

The system has 10 seconds of valid time-out period. If the engine does not start in this period, the key

approval process should be done again.

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8) CAN Configuration (P-CAN/B-CAN)

(1) CAN Configuration (P-CAN/B-CAN)

Name

Function

ECU

Electronic Control Unit

TCU

Transmission Control Unit

EPS

Electronic Power Steering Unit

BCM

Body Control Moudule

SKM

Smart Key Moudule

CAN system communicates with the system units in vehicle. It consists of P-CAN and B-CAN according

to the communication speed.

P-CAN & B-CAN: SKM, Instrument cluster, BCM, Disgnostic connector

P-CAN: ECU, ABS & ESP, TCU, E-coupling, EPS unit

Terminal resistance: installed on ECU and BCM

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(2) Wiring Connection of CAN Communication

Splice pack

Wiring

Location

S101

Floor wiring (LH)

Under fuse & relay box in engine
compartment

S102

Floor wiring (RH)

Inside of right fender

S201

Main wiring

Behind instrument cluster (cowl cross
member)

S202

Main wiring

Behind instrument cluster (cowl cross
member)

S205

Floor wiring (LH)

Under driver’s door scuff