DTC P050A:00 [L5]: Notes

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

DETECTION CONDITION & POSSIBLE CAUSES

DTC P050A:00	Cold start idle air control system performance problem
DETECTION CONDITION	The actual idle speed is lower than expected by specified for 8.4 s when the target idle speed correction value for cold start is above 0 RPM or ignition retard value is above 8.9° for California emission regulation applicable model or above 5° for except California emission regulation applicable model. NOTE: If atmospheric pressure is less than 72.3 kPa {542 mmHg, 21.3 inHg} or intake air temperature is below -10°C {14°F}, the PCM cancels diagnosis of P050A:00 Diagnostic support note This is a continuous monitor (cold start emission reduction strategy monitoring). The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM. PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle. FREEZE FRAME DATA is available. The DTC is stored in the PCM memory
POSSIBLE CAUSE	Air suction in intake air system Electronic throttle control system malfunction Throttle valve stuck or blockage PCM malfunction

DTC P050A:00

Cold start idle air control system performance problem

DETECTION CONDITION

The actual idle speed is lower than expected by specified for 8.4 s when the target idle speed correction value for cold start is above 0 RPM or ignition retard value is above 8.9° for California emission regulation applicable model or above 5° for except California emission regulation applicable model.

NOTE:

If atmospheric pressure is less than 72.3 kPa {542 mmHg, 21.3 inHg} or intake air temperature is below -10°C {14°F}, the PCM cancels diagnosis of P050A:00

Diagnostic support note

This is a continuous monitor (cold start emission reduction strategy monitoring).
The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory

POSSIBLE CAUSE

Air suction in intake air system
Electronic throttle control system malfunction
Throttle valve stuck or blockage
PCM malfunction