SsangYong Stavic / SsangYong Rodius (2005 year). Service manual — part 45
1F-21
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EFFECTIVE DATE
AFFECTED VIN
ENGINE CONTROLS
M162 GSL ENG SM - 2005.7
Circuit Description
The KS system is used to detect engine detonation, allowing the ECM to retard the ignition control spark timing based
on the KS signal being received. The KS signal’s amplitude and frequency depend upon the amount of knock being
experienced. The ECM monitors the KS signal and can diagnose the KS sensor and circuitry.
Knock Sensor Resistance Inspection
1. Disconnect the coupling from ECM while the ignition switch is in “OFF” position.
2. Measure the resistance between the coupling terminal pin No. 118 and No. 117 and terminal pin No. 115 and No.
114 using a multimeter.
Notice
Replace the KS if the measured values is out of the specified values. Check the connector and wire connection
between ECM and the KS if the measured values are normal.
Specified value
>10 M
Ω
Failur Code
Maintenance Hint
• Inspection the ECM pin 118,
117about short circuit or open with
bad contact
• Inspection the KS 1 malfunction
• Inspection the ECM
• Inspection the ECM pin 115, 114
about short circuit or open with
bad contact
• Inspection the KS 2 malfunction
• Inspection the ECM
Trouble Area
Description
57
When recognition in more than
control gain threshold at normal
operational condition of other
system during over 75 and 3,000 rpm
running area (cylinder 4, 5, 6)
No. 2 knock sensor
signal failure
56
When recognition in more than
control gain threshold at normal
operational condition of other
system during over 75 and 3,000 rpm
running area (cylinder 1, 2, 3)
No. 1 knock sensor
signal failure
1F-22
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
ENGINE CONTROLS
M162 GSL ENG SM - 2005.7
SPARK PLUG
1. Ignition coil cable cover
2. Bolt
3. Spark plug
T 1/1 Ignition Coil . . . . . . . ... Cylinder 2 and 5
T 1/2 Ignition Coil . . . . . . . ... Cylinder 3 and 4
T 1/3 Ignition Coil . . . . . . . ... Cylinder 1 and 6
1F-23
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
ENGINE CONTROLS
M162 GSL ENG SM - 2005.7
Circuit Description
The ECM monitors the crankshaft and camshaft positions to detect if the engine is misfiring. The ECM looks for a quick
drop in crankshaft speed. Misfire multiple cylinder is monitored by engine roughness measuring. The actual roughness
value is compared with the actual (emission and catalyst damage) threshold.
Failur Code
Description
Trouble Area
Maintenance Hint
• Inspection the ignition system
• Inspection the injection system
• Inspection the fuel pressure
• Inspection the compression pressure
• Inspection the valve timing or clearance
• Inspection the air flow sensor
• Inspection the crankshaft position
sensor and air gap
• Inspection the engine wiring system
• Inspection the Engine Control Module
(ECM)
Random / Multiple
Misfire
When detection misfire of
multiple cylinder for source of
over the emission threshold
or catalyst damage
68
Spark Plug Cable Resistance Inspection
1. Turn the ignition switch “OFF” position.
2. Disconnect the spark plug cables Refer to Section 1E1, Engine electrical.
3. Measure the spark plug resistance using a multimeter.
Specified value
1.8 ~ 2.2 k
Ω
Notice:
Replace the spark plug cable if the measured values is out of the specified values.
1F-24
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
ENGINE CONTROLS
M162 GSL ENG SM - 2005.7
SYSTEM VOLTAGE
Failur Code
Description
Trouble Area
Maintenance Hint
• Monitoring the actual battery
voltages through the scan tool
• Inspection the Engine Control
Module (ECM) pin 12, 11, 10, 5
about short circuit or open with
bad contact
• Inspection the over voltage
protection relay
• Inspection the battery
• Inspection ECM
System voltage too low
Malfunction in recognition of
system source voltage. Less
than minimum 8 volts in
2,000 rpm below, or less than 10
volts in 2,000 rpm above.
08
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