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Home >> Jeep >> 2008 >> Wrangler Rubicon, Standard >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0203 To P0420 >> P0203-Fuel Injector 3 Circuit >> Possible Causes

Possible Causes

Possible Causes 
(F342) ASD OUTPUT CIRCUIT
(K13) INJECTOR CONTROL NO.3 CIRCUIT OPEN
(K13) INJECTOR CONTROL NO.3 CIRCUIT SHORTED TO GROUND
FUEL INJECTOR
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.