B0701 Mercedes S 500 OBD Code

OBD/2 B0701 error code description and symptoms.

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.

Circuit High Input codes like B0701 are mostly caused by defective alternators that develop excessive voltages, although there may be other causes as well, such as short circuits that 'leak' current into a particular system from other, unrelated systems that work on higher voltages. Note that in the case of short circuits that leak power into a control circuit, there is likely to be other, seemingly unrelated trouble codes present along with the code(s) being investigated. Diagnosing a 'high input' code will always involve a thorough testing of the charging system as a first step, followed by measures to isolate the system from all other possible sources of power during resistance, continuity, and reference voltage tests.

B0701 Mercedes S 500 Error Code Repair Process :

If your purge flow sensor circuit high input 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 B0701 and engine control unit are in charge of monitoring a bunch of different purge flow sensor circuit high input, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Mercedes S 500 B0701 OBD2 Code

A common cause of code B0701 is the failure of Purge Flow Sensor Circuit High Input, but there are several other possible causes as well, such as ;

Damaged camshaft position (CMP) sensor
Air fuel ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection
Faulty Air fuel ratio (A/F) Sensor 1 Bank 1
Incorrect Positive Crankcase Ventilation (PCV) hose connection

B0701 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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B0701 Mercedes S 500 OBD Code

B0701 Mercedes S 500 Error Code Repair Process :

Common Causes of Mercedes S 500 B0701 OBD2 Code

B0701 code for other Mercedes cars