SsangYong Stavic / SsangYong Rodius (2005 year). Manual - part 45

1F-21

CHANGED BY

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