DTC Dodge B18B7 Short Explanation
Channel: Maxidot Dodge
Date: 2020-07-12

The video focuses on the basic Dodge specific diagnostic error code.
Contents:
0:21 Basic DTC analysis according to OBD2 protocol standard.
1:48 Insight into programming
- an explanation of what a bit is and how a byte is formed
- decoding the Error Code to the base programming
2:58 A diagnostically understandable description of the Diagnostic Trouble Code
3:05 Basic error definition
- Possible causes or errors of the car and its parts describing the mentioned error

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Make:
Dodge
Code:
B18B7
Definition:
Mass Air Flow Sensor 1 Circuit Low
Description:
The Mass Air Flow (MAF) Sensor and the Intake Air Temperature (IAT) Sensor are combined into one component. The Powertrain Control Module (PCM) provides a common 5-Volt Supply and sensor ground that is shared by both sensors. Each of these sensors sends feedback to the PCM on it&#39;s own signal circuit. The MAF Sensor is a transducer that varies resistance according to changes in altitude and atmospheric conditions. With the ignition on and the engine not running, the MAF Sensor provides the PCM with the Barometric Pressure reading. When the engine is running, the MAF Sensor signal supplies the PCM with the current air pressure within the Intake Manifold. The IAT Sensor signal supplies the PCM with the temperature of the air entering the Intake Manifold. This information is used by the PCM, along with other inputs to calculate fuel delivery, and timing needs.
Cause:
LOOSE CONNECTIONS AT THE POWERTRAIN CONTROL MODULE OR AIR FLOW METERPOOR AIR FLOW METER WIRING CONTINUITYAIR FLOW METER