DTC Detection Logic
WARNING: This page is about a different car, the 2010 Infiniti G37. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTION CONDITION CHART
| DTC No. |
Trouble diagnosis name |
DTC detecting condition |
Possible cause |
| P0452 |
EVAP control system pressure sensor low input |
An excessively low voltage from the sensor is sent to ECM. |
- Harness or connectors (EVAP control system pressure sensor circuit is open or shorted.)
[CKP sensor (POS) circuit is shorted.]
(APP sensor 2 circuit is shorted.)
(Refrigerant pressure sensor circuit is shorted.)
(Brake booster pressure sensor circuit is shorted)
- EVAP control system pressure sensor
- Crankshaft position sensor (POS)
- Accelerator pedal position sensor
- Refrigerant pressure sensor
- Brake booster pressure sensor
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