SSANGYONG Rexton Y200 Manual page 550

Failure
Description
Code
No. 1 knock sensor
signal failure
56
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 using a multimeter.
Specified Value
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.
SSANGYONG Y200
Trouble Area
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, 4)
>10 MΩ
M161 ENGINE CONTROLS 1F2-23
Maintenance Hint
•
Inspection the ECM pin 118, 117 about
short circuit or open with bad contact
•
Inspection the KS 1 malfunction
•
Inspection the ECM
YAD1F0F0