B0797 Mercedes Cl Class OBD Code

OBD/2 B0797 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.

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.

B0797 Mercedes Cl Class Error Code Repair Process :

For throttle position not available check engine light is perhaps the most troubling of lights because it could mean so many different things, from you didn't screw the gas cap on tightly enough to look out for pistons flying through the hood and into the stratosphere. The easiest way to find out what this light is telling you is to hook your vehicle up to a scan tool. B0797 error code diagnostic tool looks a little like an oversized calculator and plugs into a communication port inside the car. After you instruct it to perform the scan, it speaks throttle position not available with your car's computers to find out exactly what's prompting the light to turn on.

Common Causes of Mercedes Cl Class B0797 OBD2 Code

A common cause of code B0797 is the failure of Throttle Position Not Available, but there are several other possible causes as well, such as ;

Failures of clutch motion/travel sensors.
Faulty Mass Air Flow (MAF) sensor
Fuel injectors may be faulty
Incorrect fuel filler cap used

B0797 is a kind of Body Trouble Code

Auto body problems aren't always easy to spot. Diagnosing auto body problems sometimes requires a little know-how. In this section you'll find articles dedicated to teaching you how to diagnose auto body problems.

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

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B0797 Mercedes Cl Class OBD Code

B0797 Mercedes Cl Class Error Code Repair Process :

Common Causes of Mercedes Cl Class B0797 OBD2 Code

B0797 code for other Mercedes cars