SsangYong Rexton. Service manual — part 439

SSANGYONG Y200

1F2-82 M161 ENGINE CONTROLS

ELECTRONIC THROTTLE CONTROLLER SAFETY MALFUNCTION

Failure

Code

Description

Trouble Area

Maintenance Hint

Throttle actuator

learning data fault

Exceed fuel-cut safety

time

Cruise control

interruption memory

failure

Call Monitoring

Servo motor control

output interruption

memory failure

Servo motor open/short

ECM failure

(incompatible CPU)

ECM failure (CPUs

communication failure)

ECM failure (CPU 2

configuration failure)

ECM failure

(CPU 2 fault)

ECM failure

(CPU run time failure

between CPUs)

ECM failure (CPU 2

cruise control message

counter failure)

Over deceleration limit

(CPU 2)

Over acceleration limit

(CPU 2)

Cruise control lever dual

operation (CPU 2)

Cruise control lever

safety terminal failure

(CPU 2)

Unusual pedal position

variation (CPU 2)

Unusual throttle position

variation (CPU 2)

Unusual throttle

controller monitoring

data comparison fault

(CPU 2)

System internal failure

•

Inspection the Engine Control Module

(ECM)

110

117

120

138

139

140

186

187

188

189

190

231

232

233

234

235

236

237

238

M161 ENGINE CONTROLS 1F2-83

SSANGYONG Y200

Failure

Code

Description

Trouble Area

Maintenance Hint

Unusual accelerator

pedal position sensor

comparison fault

(CPU 2)

Throttle potentiometer

comparison fault

(CPU 2)

Unusual CPU

communication (CPU 2)

Unusual CPU

configuration (CPU 2)

A/D converter failure

(CPU 2)

Accelerator pedal

position sensor setpoint

fault between CPU 1

and CPU 2

Position controller

setpoint fault between

CPU 1 and CPU 2

MSR setpoint fault

between CPU 1 and

CPU 2

Idle control setpoint

fault between CPU 1

and CPU 2

A/D converter overflow

(CPU 2)

ROM fault (CPU 2)

RAM fault (CPU 2)

Cycle monitor fault

(CPU 2)

System internal failure

•

Inspection the Engine Control Module
(ECM)

239

240

241

242

243

244

245

246

247

248

249

250

251

SSANGYONG Y200

1F2-84 M161 ENGINE CONTROLS

IMMOBILIZER

YAD1F630

Circuit Description

Immobilizer is a device disabling vehicle ignition unless a specific key is used and designed to help prevent
vehicle theft.

Immobilizer is comprised of two devices, a key with encoded transponder and ECM with the same encoding of
the transponder. When a key is inserted into the hole to start vehicle and turned to ON, the ECM reads and
decodes the transponder code and, if the same, starts the engine, it is called immobilizer. It means immobilizer
system disables starting by stopping fuel supply if the code in the transponder does not match the code stored
in ECM each other.

Failure

Code

Description

Trouble Area

Maintenance Hint

Communication with

transponder missing

Unprogramed ECM with

immobilizer

When missing the transpon-

der signal

When malfunction of

immobilizer

Required immobilizer

encoding, no paired

condition of immobilizer even

through start trial

•

Inspection the Engine Control Module

(ECM) pin 13, 14 about short circuit or
open with bad contact

•

Inspection the power source or ground

short circuit or open of immobilizer unit

•

Inspection the transponder condition

(broken etc.)

•

Inspection the ECM

•

Fulfill the immobilizer pairing

25

141

M161 ENGINE CONTROLS 1F2-85

SSANGYONG Y200

MAINTENANCE AND REPAIR

ON-VEHICLE SERVICE

DISCHARGING THE PRESSURE IN
FUEL SYSTEM

Removal and Installation Procedure

1. Remove the fuel pressure test connector.

Installation Notice

YAA1F700

YAA1F710

YAA1F170

Tightening Torque

25 N•m (18 lb-ft)

2. Remove the fuel pressure in fuel systemby

pressing the service valve with a clean, pointy
tool.

Notice: Place a cloth so that the fuel doesn’t stain
around.

3. Installation should follow the removal procedure

in the reverse order.

FUEL PUMP

Tools Required

661 589 00 46 00

Fuel Tank Cap Wrench

Removal and Installation Procedure

Caution: The fuel system is under pressure. To avoid
fuel spillage and the risk of personal injury or fire,
it is necessary to relieve the fuel system pressure
before disconnecting the fuel lines.

1. Relieve the fuel system pressure. Refer to

“Discharging the Pressure in Fuel System” in this
section.

2. Disconnect the negative battery cable.

3. Put aside the floor carpet to remove the fuel pump

access cover.

4. Remove the fuel pump access cover.

5. Remove the fuel pump wiring connectors.

6. Disconnect the fuel supply and return pipes.

7. Remove the fuel pump locking cap band.