C0765 Mazda Mazda 3 Iii OBD Code

OBD/2 C0765 error code description and symptoms.

Brake Switch Circuit Input Malfunction Indicates PCM did not receive a brake pedal position (BPP) input. Open or short in BPP circuit Open or short in stoplamp circuits Damaged PCM Malfunction in module(s) connected to BPP circuit. (Rear Electronic Module [REM] Windstar and LS6/LS8 or Lighting Control Module (LCM) Continental and Town Car. Damaged brake switch Misadjusted brake switch Check for proper function of stoplamps.

As long as the throttle plate remains closed, the idling speed and quality is controlled by the PCM via the idle control valve, and as can be seen from the above it should be clear that idle control on a gasoline engine is a complex affair. For instance, if the engine is started in sub-zero temperatures, the PCM will command the idling control valve to allow less air to enter the engine to enrich the air/fuel mixture to create a condition which is roughly analogous to how chokes worked on carburetted engines to control idling in cold weather.

C0765 Mazda Mazda 3 Iii Error Code Repair Process :

If your vehicle failed a C0765 test and the C0765 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 anti theft horn output circuit short to batt 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 anti theft horn output circuit short to batt: 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.

Common Causes of Mazda Mazda 3 Iii C0765 OBD2 Code

A common cause of code C0765 is the failure of ANTI THEFT HORN OUTPUT CIRCUIT Short to Batt, but there are several other possible causes as well, such as ;

Failures of clutch motion/travel sensors.
1Camshaft Position Sensor circuit poor electrical connection
Fuel injectors may be faulty
Faulty Crankshaft Position Sensor (POS)

C0765 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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C0765 Mazda Mazda 3 Iii OBD Code

C0765 Mazda Mazda 3 Iii Error Code Repair Process :

Common Causes of Mazda Mazda 3 Iii C0765 OBD2 Code

C0765 code for other Mazda cars