P0622 FORD Generator Field Terminal Circuit

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 description If the battery is OK then the alternator is more than likely the problem. Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0622 FORD…

P0620 FORD Generator Control Circuit

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 obd code mean? The Engine Control Module (ECM) has fault detection circuitry which monitors the state of the generator turn on signal circuit. If the fault…

P0563 FORD System Voltage High

Possible causes – Battery defective– Loose or missing alternator drive belt– Faulty alternator– Open or short system voltage circuit Tech description Higher than expected voltage problems are most likely caused by bad voltage regulator. The voltage regulator is part of the alternator. When is the obd code mean? The P0563 code is detected when the…

P1450 FORD Unable to Bleed Up Bleed Fuel Tank Vacuum

Possible causes – Blocked EVAP canister or vent solenoid– Kinked or collasped hose between canister and fuel tank– Failed fuel tank pressure (FTP) sensor– Fuel filler cap stuck closed, preventing vacuum relief When is the obd code mean? Engine Control module (ECM) running system monitor and detected excessive vacuum in the fuel tank/EVAP system Symptoms…

P0230 FORD The ECM Has Detected A Fault In The Fuel Pump Circuit

Possible causes – Blown Fuel Pump fuse– Open Fuel Pump Monitor Circuit– Faulty Fuel Pump Relay– Damaged ECM Tech description For some FORD models:1. Disconnect the inertia switch harness connector2. Turn key to ON position (Engine OFF)3. Measure voltage of circuit between inertia switch harness connector and ground4. If battery voltage is found, replaced Inertia…

P0232 FORD Fuel Pump Secondary Circuit High

Possible causes – Blown Fuel Pump fuse– Open Fuel Pump Monitor Circuit– Faulty Fuel Pump Relay– Damaged Engine Control Module (ECM) Tech description For some FORD models:1. Disconnect the inertia switch harness connector2. Turn key to ON position (Engine OFF)3. Measure voltage of circuit between inertia switch harness connector and ground4. If battery voltage is…

P0231 FORD Fuel Pump Secondary Circuit Low

Possible causes – Blown Fuel Pump fuse– Open Fuel Pump Monitor Circuit– Faulty Fuel Pump Relay– Damaged Engine Control Module (ECM) Tech description For some FORD models:1. Disconnect the inertia switch harness connector2. Turn key to ON position (Engine OFF)3. Measure voltage of circuit between inertia switch harness connector and ground4. If battery voltage is…

P0237 FORD Turbo/Boost Sensor A Circuit Low Input

Possible causes – Boost pressure sensor harness is open or shorted– Boost pressure sensor circuit poor electrical connection– Faulty boost pressure sensor– Faulty Turbo/Super Charger– Engine over temperature– Ignition misfire exceeds the calibrated threshold– Faulty Knock sensor (KS) When is the obd code mean? – The ECM has detected a fault in the MAP sensor…

P0234 FORD Turbocharger/Supercharger A Overboost Condition

Possible causes – Boost pressure sensor harness is open or shorted– Boost pressure sensor circuit poor electrical connection– Faulty boost pressure sensor– Faulty Turbo/Super Charger– Engine over temperature– Ignition misfire exceeds the calibrated threshold– Faulty Knock sensor (KS) When is the obd code mean? This diagnostic trouble code (DTC) P0234 will set if the boost…

P0235 FORD Turbocharger/Supercharger Boost Sensor A Circuit Malfunction

Possible causes – Boost pressure sensor harness is open or shorted– Boost pressure sensor circuit poor electrical connection– Faulty boost pressure sensor– Faulty Turbo/Super Charger– Engine over temperature– Ignition misfire exceeds the calibrated threshold– Faulty Knock sensor (KS) When is the obd code mean? This diagnostic trouble code (DTC) P0235 will set if the boost…