ECD SYSTEM, Diagnostic DTC:P2226/A5, P2228/A5, P2229/A5

DTC Code DTC Name
P2226/A5 Barometric Pressure Circuit
P2228/A5 Barometric Pressure Circuit Low Input
P2229/A5 Barometric Pressure Circuit High Input

DESCRIPTION

To detect atmospheric pressure, the built-in atmospheric pressure sensor in the ECM is used for the common rail system. Following the changes in the atmospheric pressure, the ECM corrects the fuel injection volume, timing and duration, and adjusts the common rail internal fuel pressure in order to optimize engine combustion.

DTC No. DTC Detection Condition Trouble Area

P2226/A5

P2228/A5

P2229/A5

Atmospheric pressure sensor malfunction

(1 trip detection logic)

 ECM

INSPECTION PROCEDURE

Note

After replacing the ECM, the new ECM needs registration Click here and initialization Click here.

Tech Tips

Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was running or stopped, if the engine was warmed up or not, and other data from the time the malfunction occurred.

PROCEDURE


  1. REPLACE ECM


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