1997 SSANGYONG KORANDO maintenance

1F2 -- 66 M161 ENGINE CONTROLS
D AEW OO M Y_2000
KAB1F260
Failure
CodeDescriptionTrouble AreaMaintenance Hint
00
Engine coolant
temperature sensor low
voltageECT sensor short circuit to
ground or open
01
Engine coolant
temperature sensor high
voltageECT sensor short circuit to
power
DMonitoring the actual coolant
temperaturethroughscantool
02
Engine coolant
temperature sensor
plausibilityMalfunction in recognition of
ECT
When drop to about 50°C
below after warm uptemperaturethroughscantool
DInspection the ECM pin 78, 79 about
short circuit or open with bad contact
DInspection the ECT sensor
DIns
pection the ECM
06
Engine coolant
temperature insufficient
for closed loop fuel
controlMalfunction in recognition of
ECT
When minimum temperature
for lambda control after warm
up
DInspectiontheECM
Circuit Description
The ECT sensor uses a thermistor to control the signal voltage to the ECM. The ECM supplies a voltage on the signal
circuit to the sensor. When the engine coolant is cold, the resistance is high; therefore the ECT signal voltagewill be
high
Engine Coolant Temperature Sensor Inspection
1. Turn the ignition switch to “ON” position.
2. Measure the voltage between the ECM pin No. 78 and No. 79.
Temperature (°C)
Specified Value (V)
203.57
801.22
1000.78

M161 ENGINE CONTROLS 1F2 -- 69
D AEW OO M Y_2000
KAB1F270
Failure
CodeDescriptionTrouble AreaMaintenance Hint
122
Acceleration pedal
position sensor signal
failureWhen malfunction of APP
Sensor
160
Acceleration pedal
position 1 sensor low
voltageAPP 1 sensor short circuit to
ground or open
161
Acceleration pedal
position sensor 1 high
voltageAPP 1 sensor short circuit to
power
DMonitoring the actual values through
162
Acceleration pedal
position sensor 2 low
voltageAPP 2 sensor short circuit to
ground or open
Monitoringtheactualvaluesthrough
scan tool
DInspection the ECM pin 31, 47, 32, 48,
59, 51 about short circuit or open with
badcontact
163
Acceleration pedal
position sensor 2 high
voltageAPP 2 sensor short circuit to
power
badcontact
DInspection the APP sensor
DInspection the ECM
164
Accelerator pedal
position sensor 1 not
plausible with
accelerator pedal
position sensor 2
When difference between
APP 1 sensor and APP 2
sensor
167
Both setpoint
Accelerator pedal
position sensor defectiveWhen defective of both APP
sensor
Circuit Description
The ECM supplies a 5 or 2.5 volt reference signal and a ground to the APP sensor 1 or 2. The ECM calculates on these
signal lines. The APP sensor output changes as the accelerator pedal is moved. The output of the APP 1 and APP 2
sensor are low, about 0.4 ~ 0.7 volts and 0.2 ~ 0.35 volts respectively at the closed throttle position. As pushing the
accelerator pedal, the output increases so that the output voltageswill be about 4.3 ~ 4.8 volts and 2.1 ~ 2.4 volts
individually when accelerating fully with the kick down, at Wide Open Throttle (WOT).

1F2 -- 72 M161 ENGINE CONTROLS
D AEW OO M Y_2000
COOLING FAN
KAB1F290
Failure
CodeDescriptionTrouble AreaMaintenance Hint
44Cooling fan (HI) relay
short circuit to powerCooling fan short circuit to
powerDInspection the Engine Control Module
(ECM) pin 35 about short circuit or
openwithbadcontact
45
Cooling fan (HI) relay
short circuit to ground or
openCooling fan short circuit to
ground or open
openwithbadcontact
DInspection the power source
DInspection the cooling fan
DInspection the ECM
Circuit Description
Ignition voltage is supplied directly to the cooling fan relay coil. The ECM controls the relay by grounding the control
circuit. When the ECM is commanding a command ON, the voltage of the control circuit should be low (near 0 volt).
When the ECM is commanding the control circuit should be high (near battery voltage). If the fault detection circuit
senses a voltage other than what is expected, the fault line status will change causing the fault code to set.

M161 ENGINE CONTROLS 1F2 -- 73
D AEW OO M Y_2000
A/C COMPRESSOR RELAY
KAB1F290
Failure
CodeDescriptionTrouble AreaMaintenance Hint
228A/C compressor relay
short circuit to battery
WhenmalfunctionofA/C
DMonitoring the actual operation
through scan tool
DInspection the Engine Control Module
(ECM)pin44aboutshortcircuitor
229
A/c compressor relay
short circuit to ground or
open
When malfunction ofA/C
compressor control
(ECM)pin44aboutshortcircuitor
open with bad contact
DInspection the relay short circuit or
open
DInspection the ECM
Circuit Description
When the ECM detects that A/C has been requested, the ECMwill activated the A/C clutch relay. When the relay has
been activated, voltage should be present at both the A/C clutch relay and A/C switch circuit at ECM.

1F2 -- 74 M161 ENGINE CONTROLS
D AEW OO M Y_2000
CRUISE CONTROL SWITCH
KAB1F300
Failure
CodeDescriptionTrouble AreaMaintenance Hint
129
Cruise control “OFF”
due to message counter
failureCruise control system
Message counter fault
130Vehicle speed signal
failureWhen malfunction of
auto-- cruise systemDMonitoring the actual recognition
status and vehicle speed signal
throughscantool
131Vehicle speed signal
failure
autocruisesystem
Implausible condition of
vehicle speed signal.through scan tool
DInspection the Engine Control Module
(ECM)pin52,53,54,55,57about
132Cruise control lever
failureCruise control lever defective
(ECM)pin52,53,54,55,57about
short circuit or open with bad contact
DInspection the CAN and ABS
133Cruise control
acceleration failureCruise control system
Implausible condition of
acceleration signal
InspectiontheCANandABS
DInspection the cruise control lever
switch
DInspection the ECM
134Cruise control
deceleration failureCruise control system
Implausible condition of
deceleration signal
p
Circuit Description
Cruise control is an automatic speed control system that maintain a desired driving speed without using the accelerator
pedal. The vehicle speed must be greater than 40 km/h to engage cruise control.

M161 ENGINE CONTROLS 1F2 -- 75
D AEW OO M Y_2000
TRACTION CONTROLSYSTEM (TCS)
KAB1F310
Failure
CodeDescriptionTrouble AreaMaintenance Hint
150TCS input signal short
circuit to batteryTCS short circuit to powerDInspection the Engine Control Module
(ECM) pin 45 about short circuit or
openwithbadcontact
151TCS input signal short
circuit to ground or openTCS short circuit to ground or
open
openwithbadcontact
DInspection the TCS lamp of I/P cluster.
DInspection the ECM
Circuit Description
Battery voltage is supplied to the TCS warning lamp with the ignition in ON and START. The warning lamp can be
activated only by the Electrical Brake Control Module (EBCM) internally supplying ground to terminal 32. If the TCS
input circuit is open or short, this failure codewill be set.

1F2 -- 76 M161 ENGINE CONTROLS
D AEW OO M Y_2000
STOP LAMP SWITCH
KAB1F320
Failure
CodeDescriptionTrouble AreaMaintenance Hint
135Stop lamp switch failure
When malfunction of stop
lamp switch – implausible
condition of stop lamp signal
input
DMonitoring the actual operational
status and vehicle speed signal
through scan tool
DInspection the Engine Control Module
(ECM) pin 49 about short circuit or
open with bad contact
DInspection the contact condition of
stop lamp switch
DInspection the ECM
Circuit Description
The stop lamp switch is normally opened. When the ignition switch ON and brake ON, the battery voltage is supplied to
the ECM. A scan tool should display ON when brake pedal is depressed and should read OFF with brake pedal rele-
ased.

M161 ENGINE CONTROLS 1F2 -- 77
D AEW OO M Y_2000
ENGINE RPM
KAB1F330
Failure
CodeDescriptionTrouble AreaMaintenance Hint
32
Engine rpm output
circuit short circuit to
battery
When short circuit to battery
DMonitoring the actual rpm in cluster
DInspection the Engine Control Module
(ECM) pin 60 about short circuit or
open
33
Engine rpm output
circuit short circuit to
ground or openWhen short circuit to ground
or open
open
DInspection the cluster panel board
circuit
DInspection the ECM