What is the diagnostic code for fuel pump secondary circuit low?
What is the diagnostic code for fuel pump secondary circuit low?
P0231 is a diagnostic trouble code (DTC) for “Fuel Pump Secondary Circuit Low”.
What is the OBD code for fuel pump?
All our repairs are backed by our 12-month / 12,000-mile warranty. P0232 is a generic OBD-II code that is triggered when the engine control module (ECM) detects that the secondary circuit to the fuel pump has a high voltage when the fuel pump relay is turned off.
What does the code p0232 mean on a fuel pump?
Fuel Pump Secondary Circuit High What the P0232 code means P0232 is a generic OBD-II code that is triggered when the engine control module (ECM) detects that the secondary circuit to the fuel pump has a high voltage when the fuel pump relay is turned off.
What causes the p0230 OBD-II trouble code?
P0230 is a generic OBD-II code which indicates that the fuel pump primary circuit has a malfunction of the vehicle power to the fuel pump when it is commanded on or off What causes the P0230 code? The engine control module (ECM) detects the primary fuel pump circuit voltage as below specifications from the fuel pump relay to the ECM
Where does the fuel injection code go on a Ranger?
SERIES FUEL/AIR INJECTION CODES ON VEHICLES WITH DUAL OXYGEN SENSORS REFER TO THE LEFT OR FRONT SENSOR. EXCEPT: 1984-1988 3.8L ENGINE S: RIGHT SENSOR
How to service an OBD-I diagnostic trouble code?
Service any EEC codes, erase memory and retest. If code is still present refer to instrument cluster diagnosis manual. (O) System shows voltage at PCM pin 10. Is A/C on ? (O,M) Fuel pump open, bad ground or always on – – Power / Fuel Pump Circuits
What is the OBD code for Ford 3?
(R) No Throttle Position sensor change in “goose” test (must get at least 25% rotation) – TPS (M) Oxygen sensor not switching – system was at adaptive limits – Single, Right or Rear HO2S – Fuel control (R,M) Oxygen sensor not switching – system is or was lean – Single, Right or Rear HO2S – Fuel control
What is the 3.0L Sho fuel pump relay circuit?
3.0L SHO – Low Speed Fuel Pump Relay circuit – Power / Fuel Pump Circuits Vehicles with 2BBL carb – Temperature Compensated Accelerator Pump Solenoid – Solenoids SERIES FUEL/AIR INJECTION CODES ON VEHICLES WITH DUAL OXYGEN SENSORS REFER TO THE LEFT OR FRONT SENSOR.
What does a fuel pump circuit malfunction mean?
A circuit malfunction indicates there is a problem in the circuit, not necessarily in the sensor or actuator, in this case the fuel pump. Do not jump to replace anything unless it has been tested and found faulty. For example, replacing the fuel pump will not solve this problem unless the fuel pump is shorted internally.
What causes a p0230 fuel pump to malfunction?
Potential causes of a P0230 code include: 1 Short to ground on control circuit 2 Fuel pump control circuit open 3 Short to battery voltage on control circuit 4 Harness chafing causing one of above conditions 5 Bad relay 6 Bad PCM
What should the short circuit be on a fuel pump?
Short Circuit Check – With the fuel pump relay removed, you should measure at least 4 Ω through the pump to ground. If you measure <4 Ω, you’ll have to find and repair the short circuit. Repeat the test with the fuel pump disconnected. If the short circuit persists, the short is somewhere between the relay and ground.
P0231 is a diagnostic trouble code (DTC) for “Fuel Pump Secondary Circuit Low”.
A circuit malfunction indicates there is a problem in the circuit, not necessarily in the sensor or actuator, in this case the fuel pump. Do not jump to replace anything unless it has been tested and found faulty. For example, replacing the fuel pump will not solve this problem unless the fuel pump is shorted internally.
Short Circuit Check – With the fuel pump relay removed, you should measure at least 4 Ω through the pump to ground. If you measure <4 Ω, you’ll have to find and repair the short circuit. Repeat the test with the fuel pump disconnected. If the short circuit persists, the short is somewhere between the relay and ground.
Potential causes of a P0230 code include: 1 Short to ground on control circuit 2 Fuel pump control circuit open 3 Short to battery voltage on control circuit 4 Harness chafing causing one of above conditions 5 Bad relay 6 Bad PCM