Chery A1 2009 Service Manual page 233

2.
CHECK KNOCK SENSOR ELECTRICAL CONNECTOR
• Disconnect the knock sensor (1) electrical connec-
tor.
• Inspect the electrical connector for damage.
Is the electrical connector OK?
Yes >>
Go to the next step.
No >>
Repair or replace the electrical connector
as necessary.
3.
CHECK THE KNOCK SENSOR RESISTANCE
• Check the resistance between knock sensor connector E-017, terminal 1 and terminal 2.
• The resistance should be above 1 M .
Is the check result normal?
Yes >>
Go to the next step.
No >>
Replace the knock sensor.
4.
CHECK THE KNOCK SENSOR OUTPUT SIGNAL CIRCUIT
• Disconnect the ECM electrical connector.
• Check the knock sensor circuit resistance as shown in the following table:
ECM TERMINAL
19
20
126
03–
DIAGNOSIS & TESTING
KNOCK SENSOR CIRCUIT
KNOCK SENSOR
TERMINAL
1
2
PZSMD030005
Chery Automobile Co., Ltd.