P0487 Citroen Cx OBD Code

OBD/2 P0487 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.

P0487 Citroen Cx Error Code Repair Process :

If your p0487 exhaust gas recirculation throttle control circuit a open check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system P0487 and engine control unit are in charge of monitoring a bunch of different p0487 exhaust gas recirculation throttle control circuit a open, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Citroen Cx P0487 OBD2 Code

A common cause of code P0487 is the failure of P0487 Exhaust Gas Recirculation Throttle Control Circuit A Open, but there are several other possible causes as well, such as ;

Exhaust tube
Clogged or faulty fuel injector (s)
Ignition coils circuit poor electrical connection
Continuous oil flow to the VCT piston chamber

P0487 is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

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

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P0487 Citroen Cx OBD Code

P0487 Citroen Cx Error Code Repair Process :

Common Causes of Citroen Cx P0487 OBD2 Code

P0487 code for other Citroen cars