DTC Mazda B1131 Short Explanation
Channel: Maxidot Mazda
Date: 2020-06-20

The video focuses on the basic Mazda 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:
Mazda
Code:
B1131
Definition:
Evaporative Emission System Leak Detection Pump Control Circuit Low
Description:
P043E,P043F,P2401, P2402 and P2419 are stored when one of the following conditions is met during the key-off EVAP monitor: The reference orifice is clogged.Reference orifice high-flow.A leak detection pump OFF malfunction.A leak detection pump ON malfunction.A vent valve ON (close) malfunction.
Cause:
 Canister pump module (Reference orifice,leak detection pump,vent valve) Connector or wire harness (Canister pump module - ECM) EVAP system hose (pipe from air inlet port to canister pump module,canister filter,fuel tank vent hose) ECM