28-29
 
     
Knock sensors, checking 
     
Notes:  
     
To functionally check knock sensors   Repair 
Group 01, Read measuring value block, display 
group 015 and/or 016. 
     
Component locations   page 28
-1 .
     
Knock sensors can not be checked electrically, 
check DTC memory   page 01
-13
 . 
     
Use connector insertion tool 3247 for knock 
sensor removing and installing. 
     It is important that exact knock sensor 
tightening torque of 20 Nm (15 ft lb) be 
maintained to make sure that there is proper 
knock sensor function. 
     Visually check the knock sensor connector for 
corrosion. 
     When repairing or replacing knock sensor 
connector terminals, ONLY replace with gold 
plated terminals. 
     
Checking knock sensor wiring  
Pa
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