C3826 Mercedes-benz W196 OBD Code

OBD/2 C3826 error code description and symptoms.

Low Speed Fuel Pump Primary Circuit Malfunction The PCM monitors the low speed fuel pump (LFP) primary circuit output from the PCM.
The test fails if: When the LFP circuit is commanded on (grounded), excessive current draw is detected on the LFP circuit; or when the LFP circuit is commanded off, voltage is not detected on the LFP circuit (the PCM expects to detect VPWR voltage coming through the low speed fuel pump relay coil to the LFP circuit). Open or shorted low fuel pump (LFP) circuit Open VPWR to low speed fuel pump relay Damaged low speed fuel pump relay Damaged PCM An open circuit or short to ground can only be detected with the low speed fuel pump.

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.

C3826 Mercedes-benz W196 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine C3826 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 traction control module request circuit failure 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 traction control module request circuit failure.

Common Causes of Mercedes-benz W196 C3826 OBD2 Code

A common cause of code C3826 is the failure of Traction Control Module Request Circuit Failure, but there are several other possible causes as well, such as ;

EVAP canister or fuel tank leaks
Failures of clutch motion/travel sensors.
Incorrect Positive Crankcase Ventilation (PCV) hose connection
Faulty spark plug (s)

C3826 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.

C3826 Mercedes-benz W196 OBD Code

C3826 Mercedes-benz W196 Error Code Repair Process :

Common Causes of Mercedes-benz W196 C3826 OBD2 Code

C3826 code for other Mercedes-benz cars