engine control unit SSANGYONG KORANDO 1997 Service User Guide

1F2 -- 88 M161 ENGINE CONTROLS
D AEW OO M Y_2000
SERIAL DATA COMMUNICATION
KAB1F350
Failure
CodeDescriptionTrouble AreaMaintenance Hint
23CAN communication
failure: ASR/MSR
When CAN signal message
missing or implausibility for
ASR/MSR unit or not
initialized condition
DInspection the ASR unit with CAN
connection
DInspection the Engine Control Module
(ECM) pin 38, 37 about short circuit or
open with bad contact
DInspection the ECM
24CAN communication
failure: ABS
When CAN signal message
missing or implausibility for
ABS unit or not initialized
conditionDInspection the ABS unit with CAN
connection
DInspection the ECM pin 38, 37 about
short circuit or open with bad contact
DInspection the ECM
26CAN communication
failure: TCU (A/T only)
When CAN signal message
missing or implausibility for
TCU unit or not initialized
conditionDInspection the TCM unit with CAN
connection
DInspection the ECM pin 38, 37 about
short circuit or open with bad contact
DInspection the ECM

M161 ENGINE CONTROLS 1F2 -- 89
D AEW OO M Y_2000
Failure
CodeDescriptionTrouble AreaMaintenance Hint
29
CAN communication
failure: ID 200h not
plausibleWhen CAN signal message
missing or implausibility for
ABS/ABD unit or not
initialized conditionDInspection the ABS/ABD unit with
CAN connection
DInspection the ECM pin 38, 37 about
short circuit or open with bad contact
DInspection the ECM
30
CAN communication
failure: ID 208h not
plausibleWhen CAN signal message
missing or implausibility for
ABS/ABD unit or not
initialized conditionDInspection the ABS/ABD unit with
CAN connection
DInspection the ECM pin 38, 37 about
short circuit or open with bad contact
DInspection the ECM
31
CAN communication
failure: communication
initialization failure
When CAN signal message
missing or implausibility for
each unit (ABS, ASR, TCM,
TOD etc.) or not initialized
conditionDInspection the each control unit with
CAN connection
DInspection the ECM pin 38, 37 about
short circuit or open with bad contact
DInspection the ECM
59
CAN communication
failure: MSR data
transmission not
plausibleWhen CAN signal message
missing or implausibility for
MSR unit or not initialized
condition
DInspection the MSR unit with CAN
connection
DInspection the Engine Control Module
(ECM) pin 38, 37 about short circuit or
open with bad contact
DInspection the ECM
60
CAN communication
failure: ASR data
transmission not
plausibleWhen CAN signal message
missing or implausibility for
ASR unit or not initialized
condition
DInspection the ASR unit with CAN
connection
DInspection the Engine Control Module
(ECM) pin 38, 37 about short circuit or
open with bad contact
DInspection the ECM
Circuit Description
The provision for communicating with the ECM is the Data Link Connector (DLC). It is located in the instrument panel
fuse block. The DLC is used to connect the scan tool. Battery power and ground is supplied for the scan tool through
the DLC. CAN line is used to communicate with the other module such as the Transmission Control Module (TCM) and
Transfer Case Control Unit (TCCU).
Keyword 2000 Serial Data Communications
Each bit of information can have one of two lengths: long or short. This allows vehicle wiring to be reduced by transmit-
ting and receiving multiple signals over a singles wire. The message carried on KWP 2000 data streams are also priori-
tized. If two messages attempt to establish communications on the data line at the same time, only the message with
higher prioritywill must wait.

1F2 -- 94 M161 ENGINE CONTROLS
D AEW OO M Y_2000
IMMOBILIZER
KAB1F360
Failure
CodeDescriptionTrouble AreaMaintenance Hint
25Communication with
transponder missingWhen missing the
transponder signal
DInspection the Engine Control Module
(ECM) pin 13, 14 about short circuit or
open with bad contact
DInspection the power source or ground
short circuit or open of immobilizer unit
DInspection the transponder condition
(broken etc.)
DInspection the ECM
141Unprogramed ECM with
immobilizer
When malfunction of
immobilizer
Required immobilizer
encoding, no paired condition
of immobilizer even through
start trial
DFulfill the immobilizer pairing
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 immobilizersystem disables
starting by stopping fuel supply if the code in the transponder does not match the code stored in ECM each other.

D AEW OO M Y_2000
SECTION 1F3
OM600 ENGINE CONTROLS
Caution: Disconnect the negative battery cable before removing or installing any electrical unit or when a
tool or equipment could easily come in contact with exposed electrical terminals. Disconnecting this cable
will help prevent personal injury and damage to the vehicle. The ignition must also be in LOCK unless other -
wise noted.
TABLE OF CONTENTS
Specifications 1F3 -- 1............................
Fastener Tightening Specifications 1F3 -- 1..........
Maintenance and Repair 1F3 -- 2...................
On -- Vehicle Service 1F3 -- 2.........................
Fuel System 1F3 -- 2.............................
Fuel Injection Pump Coding 1F3 -- 3................
Fuel Tank 1F3 -- 4...............................
Vacuum Control System Test 1F3 -- 5..............
Vacuum Pump Test 1F3 -- 10......................
Vacuum Pump 1F3 -- 12..........................
Vacuum Unit Replacement 1F3 -- 14...............
Idle Speed Adjustment 1F3 -- 15...................Fuel Pump Test 1F3 -- 17.........................
Fuel Pump 1F3 -- 20.............................
Injection Nozzle Test 1F3-- 21.....................
Injection Nozzles 1F3-- 24........................
Injection Nozzle Repair 1F3 -- 26...................
Removal and Installation of
Injection Timing Device 1F3 -- 29.................
Injection Timing Device 1F3 -- 34...................
StartofDeliveryTest
(Position Sensor, RIV Method) 1F3 -- 36..........
Fuel Injection Pump 1F3 -- 45.....................
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
ApplicationN∙mLb-- FtLb-In
Fuel Tank Mounting Nut28 -- 4721 -- 35--
Fuel Pump Pressure Line1310--
Fuel Injection Nozzle35 -- 4026 -- 30--
Fuel Injection Pipe1813--
Nozzle Tensioning Nut8059--
Screw Plug3022--
Left -- Hand Thread Bolt4634--

OM600 ENGINE CONTROLS 1F3 -- 3
D AEW OO M Y_2000
FUEL INJECTION PUMP CODING
Model Code
OM661 LA EnginePES 4M 55C 320 RS 167
OM662 LA EnginePES 5M 55C 320 RS 168
Fuel Injection Pump Code
Example) PES 5M 55C 320 RS 168
PPump
E Self -- Driven
S End Flange Mounting
5 Number of Cylinders (5EA)
MPumpSize
55 Element Diameter
C Modification Letter
320 Assembly Number
R Direction of Rotation (clockwise)
S188 Special Version
RSF Governor
R Governor
S Coil Spring
F Drive Governor
Component Location
1. Fuel Injection Pump
2. Vacuum Unit (Stop Unit)
3. Control Lever
4. PLA Vacuum Unit (Idle Speed Adjustment)
5. Governor
6. Fuel Pump

1F3 -- 14 OM600 ENGINE CONTROLS
D AEW OO M Y_2000
VACUUM UNIT REPLACEMENT
1 Bracket
2Bolt
3 Vacuum Unit
4 Vacuum Line
5 Seal Replace.............................

OM600 ENGINE CONTROLS 1F3 -- 15
D AEW OO M Y_2000
IDLE SPEED ADJUSTMENT
Service Data
EngineIdle Speed
OM661LA Engine750 -- 850 rpm
OM662LA Engine720 -- 820 rpm
Tools Required
667 589 00 21 00 TDC Pulse Generato
Commercial Tool
Digital Testere.g. Bosch, MOT 001.03g
Sun, DIT 9000
Adjustment Procedure
1. Connect the digital tester (1) and TDC pulse sender
unit (11).
2. Run the engine and warm up the coolant to
60~80_C.
TDC pulse generator 667 589 02 21 00
3. Disconnect the vacuum hose (4) from the PLA unit
to check idle speed with tester.
4. Check idle speed with tester.
OM 661LA Engine750 -- 850rpm
OM 662LA Engine720 -- 820rpm
Notice
To adjust idle speed, loosen the locking nut (6) of
PLA unit.

1F3 -- 16 OM600 ENGINE CONTROLS
D AEW OO M Y_2000
5. Ensure not to damage the idle spring in the governor
and adjust idle speed by turning the PLA unit (5)
slowly.
ClockwiseRPM Decrease
CounterclockwiseRPM Increase
Notice
Do not rotate the PLA unit over 1/2 turn from the
position marking. If do, idle spring in the governor
will be severely damaged.
6. After adjustment, tighten the locking nut and place
the position marking with different color of paint.
Notice
If there are no changes in idle speed with PLA unit
adjustment, perform the service at a BOSCH Ser-
vice Center.
7. Connect the vacuum pump to the PLA vacuum unit
and build up vacuum approx. 500mbar. If engine
rpm increases by approx. 100rpm, It is normal.
Vacuum Pump 001 589 73 21 00
8. Connect the vacuum line (4).
9. Switch on all ancillaries and check the idle speed.

OM600 ENGINE CONTROLS 1F3 -- 17
D AEW OO M Y_2000
FUEL PUMP TEST
Notice
Before test, replace the fuel filter cartridge and fuel pre-
filter.
Fuel Feed Test
1. Disconnect the fuel return line (1) and seal up it with
plug.
2. Insert the plastic hose (5) and put the end into the
measuring beaker (6).
3. Disconnect the vacuum line (4) from vacuum unit
(engine stop) (5) and connect the vacuum pump (7)
to the vacuum unit.
4. To avoid the engine starting, build up vacuum
(approx. 500 mbar).
5. Operate the starter motor for exactly 30 seconds
and measure fuel volume in the beaker.
Min. volume150cm3for 30 seconds

1F3 -- 38 OM600 ENGINE CONTROLS
D AEW OO M Y_2000
Digital Tester, RIV Method
(Connection Diagram for Testers Without Adapter)
1 Fuel Injection Pump
2 Rl Sensor
3 Digital Tester4 TDC Pulse Sender Unit
5 Battery