DTC P050B; Pcm Cold Start Ignition Timing Performance Problem: Notes
WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
DETECTION CONDITION & POSSIBLE CAUSE
| DTC P050B:00 |
Cold start ignition timing performance problem |
| DETECTION CONDITION |
- PCM internal RAM malfunction.
Diagnostic support note
- This is a continuous monitor (cold start emission reduction strategy monitoring).
- The check engine light 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 first drive cycle.
- FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
- DTC is stored in the PCM memory.
|
| FAIL-SAFE FUNCTION |
Not applicable |
| POSSIBLE CAUSE |
- PCM internal RAM malfunction
|
| SYSTEM WIRING DIAGRAM |
Not applicable |