Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-P050B00

Condition
The Engine control module (ECM) checks the function for catalytic converter warm-up.
The Engine control module (ECM) calculates the difference between the requested energy applied for catalytic converter warm-up and the actual excess energy for catalytic converter warm-up.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- The difference between applied energy for warm-up of the catalytic converter and the actual energy for warm-up of the catalytic converter is too great.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Cold engine.
- Warming-up of catalytic converter started.

Note! The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.

Substitute value
- None.

Possible source
- Blocked intake system.
- Clogged air filter.
- Sticking/slow throttle.
- Mechanical fault causes in the engine.

Fault symptom[s]
- Malfunction indicator light (MIL), on