Set Conditions:
•The Powertrain Control Module (PCM) detects that the Knock Sensor input voltage is either:
◦Above 4.8 volts.
◦Less than 0.2 volts when engine speed is above 2000 rpm.
Default Actions:
•MIL light will illuminate.
Possible Causes
KNOCK SENSOR 2 SIGNAL CIRCUIT SHORTED TO VOLTAGE
KNOCK SENSOR 2 SIGNAL CIRCUIT OPEN
KNOCK SENSOR 2 RETURN CIRCUIT OPEN
KNOCK SENSOR 2 SIGNAL CIRCUIT SHORTED TO THE KNOCK SENSOR 2 RETURN CIRCUIT
KNOCK SENSOR 2 SIGNAL CIRCUIT SHORTED TO GROUND
KNOCK SENSOR
POWERTRAIN CONTROL MODULE (PCM)
2012 JKU, shaved 14/SD60hp locked/spooled, 4 link Front 3 link rear, ORis all around, D3 all over, 42" SX2 tires, 20" Trail ready HD double beadlocks, PSC Full hydro