C0543 Trouble Code

View C0543 obd/2 error code description and symptoms. C0543 engine photo

Mass Air Flow (MAF) Sensor Intermittent The MAF sensor circuit is monitored by the PCM for sudden voltage (or air flow) input change through the comprehensive component monitor (CCM). If during the last 40 warm-up cycles in key ON engine running the PCM detects a voltage (or air flow) change beyond the minimum or maximum calibrated limit, a continuous memory diagnostic trouble code (DTC) is stored.

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.

Difficulty Level (Expert)
Level
Repair Time (60 Min.)
Time
Cost Prediction : $ 75-90

C0543 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine C0543 light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If memory #1 output short to vbatt so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the memory #1 output short to vbatt.

Wrench Tool C0543 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 C0543

A common cause of code C0543 is the failure of Memory #1 output Short to VBatt, but there are several other possible causes as well, such as ;

C0543 code for all cars

You can view according C0543 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+C0543 Suzuki Cappuccino +C0543 Chevrolet Vega +C0543 Amc Hornet +C0543 Mercedes-benz R Class +C0543 Talbot 95

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