C1250 Trouble Code

View C1250 obd/2 error code description and symptoms. C1250 engine photo

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.

C1250 Error Code Repair Process :

If your vehicle failed a C1250 test and the C1250 Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses c1250 abs inlet valve coil lr circuit failure a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look c1250 abs inlet valve coil lr circuit failure: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression. Use your OBD Express DIY to look at the oxygen sensor outputs, coolant temperature, airflow, calculated engine load, and inlet air temperature.

C1250 is a kind of Chassis Trouble Code

Diagnosing chassis noises can be one of the most frustrating problems technicians face. Fortunately, manufacturers have engineered noise, vibration and harshness (NVH) diagnostic techniques and equipment to find the source of the noise.

Common Causes of C1250

A common cause of code C1250 is the failure of C1250 ABS Inlet Valve Coil LR Circuit Failure, but there are several other possible causes as well, such as ;

Exhaust tube
Faulty Camshaft Position Sensor
Air fuel ratio (A/F) Sensor 1 Bank 1 harness is open or shorted
Oil flow restriction in the oil passages or the VCT valve body

C1250 code for all cars

You can view according C1250 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+C1250 Chevrolet Journey

+C1250 Hispano Suiza Alfonso

+C1250 Lancia K

+C1250 Land Rover Defender

+C1250 Ford Royale

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

About Us | Contact | Privacy