C1687 Trouble Code

View C1687 obd/2 error code description and symptoms. C1687 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.

At this point we are assuming that the fuses and relays are good. You will need to locate the PCM/TCM and the power input signal circuit using your vehicle information source. Unplug the connector from the PCM/TCM, place the ignition switch in the ON position, and probe the appropriate circuit with the positive test lead of the DVOM.

C1687 Error Code Repair Process :

If your o2 sensor circuit slow response (bank 1 sensor 3) 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 C1687 and engine control unit are in charge of monitoring a bunch of different o2 sensor circuit slow response (bank 1 sensor 3), and if they get a reading that's a little out of whack, up pops the check engine light.

C1687 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 C1687

A common cause of code C1687 is the failure of O2 Sensor Circuit Slow Response (Bank 1 Sensor 3), but there are several other possible causes as well, such as ;

Exhaust tube
Faulty Intake Valve Timing Control Solenoid Valve
Dirty Oil
Ignition coils circuit poor electrical connection

C1687 code for all cars

You can view according C1687 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+C1687 Armstrong Siddeley Hurricane

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