Possible causes – A/C system low or over charge with refrigerant– Faulty A/C refrigerant pressure sensor– Cooling fans in-operative– A/C refrigerant pressure sensor circuit open or shorted– A/C refrigerant pressure sensor circuit poor electrical connection When is the code detected?

Possible causes – A/C system low or over charge with refrigerant– Faulty A/C refrigerant pressure sensor– Cooling fans in-operative– A/C refrigerant pressure sensor circuit open or shorted– A/C refrigerant pressure sensor circuit poor electrical connection When is the code detected?

Possible causes – A/C system low or over charge with refrigerant– Faulty A/C refrigerant pressure sensor– Cooling fans in-operative– A/C refrigerant pressure sensor circuit open or shorted– A/C refrigerant pressure sensor circuit poor electrical connection When is the code detected?

Possible causes – A/C system low or over charge with refrigerant– Faulty A/C refrigerant pressure sensor– Cooling fans in-operative– A/C refrigerant pressure sensor circuit open or shorted– A/C refrigerant pressure sensor circuit poor electrical connection When is the code detected?

Possible causes – A/C system low or over charged with refrigerant– Faulty A/C Refrigerant Pressure Sensor– Cooling fans in-operative– A/C Refrigerant Pressure Sensor harness is open or shorted– A/C Refrigerant Pressure Sensor circuit poor electrical connection When is the code

Possible causes – Battery charge– Faulty Generator– Generator harness is open or shorted– Generator circuit poor electrical connection– Engine Control Module (ECM) controlled generator– Faulty ECM Tech notes If the battery is OK then the alternator is more than likely

Possible causes – Battery charge– Faulty Generator– Generator harness is open or shorted– Generator circuit poor electrical connection– Engine Control Module (ECM) controlled generator– Faulty ECM When is the code detected? The Engine Control Module (ECM) has fault detection circuitry

Possible causes – Blown Fuel Pump fuse– Open Fuel Pump Monitor Circuit– Faulty Fuel Pump Relay– Damaged ECM When is the code detected? The code will be set if an incorrect voltage on the control circuit of the fuel pump

Possible causes – Blown Fuel Pump fuse– Open Fuel Pump Monitor Circuit– Faulty Fuel Pump Relay– Damaged Engine Control Module (ECM) When is the code detected? The code will be set if a low voltage on the control circuit of

Possible causes – Blown Fuel Pump fuse– Open Fuel Pump Monitor Circuit– Faulty Fuel Pump Relay– Damaged Engine Control Module (ECM) When is the code detected? The code will be set if a low voltage on the control circuit of

Possible causes – Cruise control servo control poor electrical connection– Faulty cruise control servo Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Damaged, missing or loosely installed fuel filler cap Tech notes Check for a loose, missing or damage fuel filler the cap. When is the code detected? EVAP control system has a very large leak such as fuel

Possible causes – Dirty Fuel Injector 1– Faulty Fuel Injector 1– Plugged Fuel Injector 1– Fuel injector 1 harness is open or shorted– Fuel injector 1 circuit poor electrical connection Tech notes Clogged or partially clogged fuel injector can cause

Possible causes – Dirty Fuel Injector 2– Faulty Fuel Injector 2– Plugged Fuel Injector 2– Fuel injector 2 harness is open or shorted– Fuel injector 2 circuit poor electrical connection Tech notes Clogged or partially clogged fuel injector can cause

Possible causes – Dirty Fuel Injector 2– Faulty Fuel Injector 2– Plugged Fuel Injector 2– Fuel injector 2 harness is open or shorted– Fuel injector 2 circuit poor electrical connection Tech notes Clogged or partially clogged fuel injector can cause

Possible causes – Dirty Fuel Injector 3– Faulty Fuel Injector 3– Plugged Fuel Injector 3– Fuel injector 3 harness is open or shorted– Fuel injector 3 circuit poor electrical connection Tech notes Clogged or partially clogged fuel injector can cause

Possible causes – Dirty Fuel Injector 3– Faulty Fuel Injector 3– Plugged Fuel Injector 3– Fuel injector 3 harness is open or shorted– Fuel injector 3 circuit poor electrical connection Tech notes Clogged or partially clogged fuel injector can cause

Possible causes – Dirty Fuel Injector 4– Faulty Fuel Injector 4– Plugged Fuel Injector 4– Fuel injector 4 harness is open or shorted– Fuel injector 4 circuit poor electrical connection Tech notes Clogged or partially clogged fuel injector can cause

Possible causes – Dirty Fuel Injector 4– Faulty Fuel Injector 4– Plugged Fuel Injector 4– Fuel injector 4 harness is open or shorted– Fuel injector 4 circuit poor electrical connection Tech notes Clogged or partially clogged fuel injector can cause

Possible causes – Dirty Fuel Injector 5– Faulty Fuel Injector 5– Plugged Fuel Injector 5– Fuel injector 5 harness is open or shorted– Fuel injector 5 circuit poor electrical connection Tech notes Clogged or partially clogged fuel injector can cause