proceeding with this trouble area.
P0230
Fuel Pump Circuit Malfunction
• Blown or missing fuse/relay
• Short to battery between fuel pump relay and ECM
• Open between fuel pump relay and ECM
• Faulty fuel pump relay
P0261
Injector Circuit Low Input
(Cylinder -1)
• Short to GND between injector and ECM
• Faulty fuel injector
P0264
Injector Circuit Low Input
(Cylinder -2)
P0267
Injector Circuit Low Input
(Cylinder -3)
P0270
Injector Circuit Low Input
(Cylinder -4)
P0273
Injector Circuit Low Input
(Cylinder -5)
P0276
Injector Circuit Low Input
(Cylinder -6)
P0262
Injector Circuit High Input
(Cylinder -1)
• Open between injector fuse and injector
• Open or short to battery between injector and ECM
• Faulty fuel injector
P0265
Injector Circuit High Input
(Cylinder -2)
P0268
Injector Circuit High Input
(Cylinder -3)
P0271
Injector Circuit High Input
(Cylinder -4)
P0274
Injector Circuit High Input
(Cylinder -5)
P0277
Injector Circuit High Input
(Cylinder -6)
P0300
Random Misfire Detected
• Vacuum leak in air intake system
• CKP sensor circuit malfunction
• Faulty CKP sensor
• Ignition circuit malfunction
• Faulty ignition coil or plug wire
• Spark plug malfunction
• Low compression due to blown head gasket, leaking valve or
piston ring
• Low/high fuel pressure due to faulty pressure regulator,
restricted fuel lines,plugged fuel filter or faulty fuel pump
• Fuel injector circuit malfunction
• Faulty fuel injector
If any fuel injector codes (or pending codes) are present, do all
repairs associated with those codes before proceeding with
this trouble area.
P0301
Misfire Detected (Cylinder -1)
P0302
Misfire Detected (Cylinder -2)
P0303
Misfire Detected (Cylinder -3)
P0304
Misfire Detected (Cylinder -4)
P0305
Misfire Detected (Cylinder -5)
P0306
Misfire Detected (Cylinder -6)
Page 9 of 14
24.04.2008
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