DTC P0550:00: Notes
DTC P0550:00 (L3 WITH TC) DETECTION CONDITION AND POSSIBLE CAUSE
| DTC P0550:00 |
PSP switch circuit malfunction |
| DETECTION CONDITION |
- The PCM monitors the PSP switch signal, If the input voltage is low voltage (switch stays on) for 1 min. when the VSS is above 60.0 km/h {37.4 mph}
and the ECT is above 60°C {140°F},
the PCM determines that the PSP switch circuit has a malfunction.
Diagnostic support note
- This is a continuous monitor (CCM).
- 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 (Mode 2)/Snapshot data is available.
- DTCs are stored in PCM memory.
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| POSSIBLE CAUSE |
- PSP switch connector or terminals malfunction
- PSP switch malfunction
- Short to ground in wiring harness between PSP switch terminal A and PCM terminal 1 AD
- PCM connector or terminals malfunction
- Open circuit in wiring harness between PSP switch terminal A and PCM terminal 1AD
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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