SsangYong Stavic / SsangYong Rodius (2005 year). Manual — part 53
1F-53
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
ENGINE CONTROLS
M162 GSL ENG SM - 2005.7
Circuit Description
The ECM supplies a 5 or 2.5 volt reference signal and a ground to the APP sensor 1or 2. The ECM calculates on these
signal lines. The APP sensor output changes as the accelerator pedal is moved. The output of the APP 1and APP2
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 voltages will 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).
Acceleration Pedal Position Sensor 1 Inspection
1. Turn the ignition switch to “ON” position.
2. Measure the signal voltage between the ECM pin No. 47andNo. 31while operating the accelerator pedal as following
conditions.
• Not depress the pedal (closed throttle position)
• Fully depress the pedal (full throttle with kick down)
Notice
If measured value is not within the specified value, check the pedal valve sensor and the supply voltage to
APP 1 sensor.
Acceleration Pedal Position Sensor 2 Inspection
1. Turn the ignition switch to “ON” position.
2. Measure the signal voltage between the ECM pin No. 48 and No. 50 while operating the accelerator pedal as
following conditions.
• Not depress the pedal (closed throttle position)
• Fully depress the pedal (full throttle with kick down)
Notice
If measured value is not within the specified value, check the pedal valve sensor and the supply voltage to
APP sensor 2.
Condition of Throttle Valve
Closed throttle valve
Fully depressed throttle valve
Specified Value (V)
0.3 ~ 0.7
4.3 ~ 4.8
Condition of Throttle Valve
Closed throttle valve
Fully depressed throttle valve
Specified Value (V)
0.1 ~ 0.4
2.1 ~ 2.5
1F-54
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
ENGINE CONTROLS
M162 GSL ENG SM - 2005.7
COOLING FAN
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.
Failur Code
Description
Trouble Area
Maintenance Hint
• Inspection the Engine Control
Module (ECM) pin 35 about short
circuit or open with bad contact
• Inspection the power source
• Inspection the cooling fan
• Inspection the ECM
Cooling fan (HI) relay
short circuit to ground
or open
Cooling fan short circuit to
ground or open with bad contact
45
Cooling fan (HI) relay
short circuit to power
Cooling fan short circuit to power
44
1F-55
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
ENGINE CONTROLS
M162 GSL ENG SM - 2005.7
A/C COMPRESSOR RELAY
Circuit Description
When the ECM detects that A/C has been requested, the ECM will 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.
Failur Code
Description
Trouble Area
Maintenance Hint
• Monitoring the actual operation
through scan tool
• Inspection the Engine Control
Module (ECM) pin 44 about short
circuit or open with bad contact
• Inspection the relay short circuit
or open
• Inspection the ECM
A/c compressor relay
short circuit to ground
or open
229
A/C compressor relay
short circuit to battery
When malfunction of A/C
compressor control
228
1F-56
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
ENGINE CONTROLS
M162 GSL ENG SM - 2005.7
CRUISE CONTROL SWITCH
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.
Failur Code
Description
Trouble Area
Maintenance Hint
• Monitoring the actual recognition
status and vehicle speed signal
through scan tool
• Inspection the Engine Control
Module (ECM) pin 52 53 54 55 57
about short circuit or open with
bad contact
• Inspection the CAN and ABS
• Inspection the cruise control lever
switch
• Inspection the ECM
Cruise control “OFF”
due to message
counter failure
Cruise control system
message counter fault
129
Vehicle speed signal
failure
When malfunction of auto-cruise
system Implausible condition of
vehicle speed signal.
130
Vehicle speed signal
failure
131
Cruise control lever
failure
Cruise control lever
defective
132
Cruise control
acceleration failure
Cruise control system Implau-
sible condition of acceleration
signal
133
Cruise control
deceleration failure
Cruise control system Implau-
sible condition of deceleration
signal
134
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