B2451 Peugeot 307 OBD Code

OBD/2 B2451 error code description and symptoms.

HO2S Sensor Circuit Malfunction (HO2S-11) During testing the HO2S Heaters are checked for opens/shorts and excessive current draw.
The test fails when current draw exceeds a calibrated limit and/or an open or short is detected. Short to VPWR in harness or HO2S. Water in harness connector. Open VPWR circuit. Open GND circuit. Low battery voltage. Corrosion or poor mating terminals and wiring Damaged HO2S heater. Damaged PCM.

A good starting point in your diagnosis is checking all system fuses and fusible links. This can be done using the DVOM on the voltage setting. You will want to test the fuses with circuits loaded. Some fuses will appear normal until a load is placed on their respective circuit; at which point they will fail. This has been the cause of many 'phantom malfunctions'. Consult your vehicle information source for fuse and fusible link locations. If all fuses are in working order, you may want to check TCM relay operation by swapping identical relays. Usually the horn relay, starter relay, fuel pump relay, air conditioning clutch relay, and controller relays are similar enough in design to swap for diagnostic purposes.

B2451 Peugeot 307 Error Code Repair Process :

The scent may B2451 signal oil or coolant leaking from their normally closed-loop systems, or it may indicate dangerous exhaust gases invading your car's interior. Car and truck exhaust contains toxic gases such B2451, so if the inside of your car b2451 aux heater fuel pump circuit short to ground as if you were standing behind your car, get out and get it fixed. Fight the urge to take a little nap first. So sleepy. That's the carbon monoxide talking, friends. At least open a window on your way to the shop.

Common Causes of Peugeot 307 B2451 OBD2 Code

A common cause of code B2451 is the failure of B2451 Aux Heater Fuel Pump Circuit Short to Ground, but there are several other possible causes as well, such as ;

Exhaust tube
Damaged ECM
Clogged or faulty fuel injector (s)
Fuel Injectors circuit poor electrical connection

B2451 is a kind of Body Trouble Code

Auto body problems aren't always easy to spot. Diagnosing auto body problems sometimes requires a little know-how. In this section you'll find articles dedicated to teaching you how to diagnose auto body problems.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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B2451 Peugeot 307 OBD Code

B2451 Peugeot 307 Error Code Repair Process :

Common Causes of Peugeot 307 B2451 OBD2 Code

B2451 code for other Peugeot cars