C3721 Simca 1300 OBD Code

OBD/2 C3721 error code description and symptoms.

Engine Coolant Temperature (ECT) Circuit High Input Indicates the sensor signal is greater than Self-Test maximum. The ECT sensor maximum is 4.6 volts or -50 C (-58 F). Note on some vehicles that are not equipped with an ECT sensor, CHT can be used and can set this DTC. Open circuit in harness Sensor signal short to power Damaged PCM Improper harness connection Damaged sensor ECT V PID reading greater than 4.6 volts with key ON and engine OFF or during any engine operating mode indicates a hard fault.

Some systems require that the actuator has an adequate supply of brake fluid. Low brake fluid levels can mimic the symptoms of code C3721, so consult the manual to locate the brake fluid reservoir. Bear in mind that a low fluid level can set code C3721 on some applications, so make sure that on fluid operated systems the fluid level is up to the mark before starting an electrical diagnosis.

C3721 Simca 1300 Error Code Repair Process :

If your speed wheel sensor rear center coherency fault 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 C3721 and engine control unit are in charge of monitoring a bunch of different speed wheel sensor rear center coherency fault, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Simca 1300 C3721 OBD2 Code

A common cause of code C3721 is the failure of Speed Wheel Sensor Rear Center Coherency Fault, but there are several other possible causes as well, such as ;

Engine Control Module (ECM)
Air fuel ratio (A/F) Sensor 1 Bank 1 harness is open or shorted
Intake Valve Timing Control Solenoid Valve circuit poor electrical connection
Faulty oil control valve (OCV)

C3721 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.

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

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C3721 Simca 1300 OBD Code

C3721 Simca 1300 Error Code Repair Process :

Common Causes of Simca 1300 C3721 OBD2 Code

C3721 code for other Simca cars