SsangYong Korando II (1996-2006 year). Manual — part 111
1F2 -- 22 M161 ENGINE CONTROLS
DAEWOO MY_2000
CRANKSHAFT POSITION (CKP) SENSOR
YAA1F940
This Electronic Ignition (EI) system uses inductive or pick up type magnetic Crankshaft Position (CKP) sensor. The
CKP sensor is located in the opposite side of the crankshaft pulley and triggers the pick-up wheel teeth which is
equipped 60--2 teeth with a gap of 2 teeth at 360 degree spacing. This sensor protrudes through its mount to within 1.1
± 0.14 mm.
The output of the sensor is a sinusoidal signal. Each tooth of the pick-up 60 -- 2 wheel generates a positive half wave.
The Engine Control Module (ECM) uses this sensor signal to generate timed ignition and injection pulses that it sends
to the ignition coils and to the fuel injectors.
M161 ENGINE CONTROLS 1F2 -- 23
DAEWOO MY_2000
KAB1F150
Failure
Code
Description
Trouble Area
Maintenance Hint
17
Crankshaft position
sensor signal failure (no
engine revolution signal)
Even through cam position
recognition is normal, no
crankshaft position signal
recognition.
D
Monitoring the actual rpm through or
scan tool
18
Crankshaft position
sensor signal failure
(rpm > max. value)
When more than applicable
revolution values or
implausible to 60 – 2 teeth.
scan tool
D
Inspection the ECM pin 100, 99 about
short circuit with bad contact
D
Inspection the CKP sensor
20
Crankshaft position
sensor signal failure
(gap recognition failure)
When implausible recognition
of cam and crank angle signal
or intermittent sensing the
signal or error count of
undetected gap.
p
D
Inspection the air gap between sensor
and drive plate
D
Inspection the drive plate (teeth
condition)
D
Inspection the ECM
67
Crankshaft position
sensor adaptation failure
When faulty crank angle
sensor adaption.
p
Circuit Description
The 58X reference signal is produced by the CKP sensor. During one crankshaft revolution, 58 crankshaft pulses will
be produced. The ECM uses the 58X reference signal to calculate engine rpm and CKP. The ECM constantly monitors
the number of pulses on the 58X reference circuit and compares them to the number of Camshaft Position (CMP)
signal pulses being received. If the ECM receives and incorrect number of pulses on the 58X reference circuit, this
failure code will set.
Crankshaft Position Sensor Resistance Inspection
1. Disconnect the coupling “E” of ECM while the ignition switch is in “OFF” position.
2. Measure the resistance between the coupling terminal pin No. 99 and No. 100 using a multimeter.
Specified Value
1,050 ~ 1,400 Ω
Notice: Measure the insulator resistance of the CKP sensor if out of the specified value.
1F2 -- 24 M161 ENGINE CONTROLS
DAEWOO MY_2000
Crankshaft Position Sensor Output Wave Inspection
1. Measure the output wave between the ECM termi-
nals No. 99 and No. 100 using the scan tool or the os-
cilloscope while engine cranking (start motor
activated).
Notice: Check the segment or crankshaft position sen-
sor and air gap if cannot get the output wave as shown in
the figure.
YAA1F270
Crankshaft Position Sensor Insulator 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. 100 and No. 69 using a multimeter.
Specified Value
> 20 kΩ
Notice: Measure the check and ground terminal of the CKP sensor if out of the specified value.
M161 ENGINE CONTROLS 1F2 -- 25
DAEWOO MY_2000
BLANK
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