PCM sets DTC P0553 if the PCM detects signal higher than the possible range of a properly operating sensor.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Electrical Monitoring | 1. Poor Connector Connection 2. Open in A/C Pressure Sensor Ground Circuit 3. Short to Battery in A/C Pressure Sensor Signal Circuit 4. Defected A/C Pressure Sensor |
Enable Conditions |
•
Battery voltage higher than 10V and lower than 16V
•
No relevant DTC present | |
Threshold value |
•
A/C Pressure Sensor Signal Voltage higher than 4.7V | |
Diagnosis Time |
•
30 sec. | |
MIL On Condition |
•
- |
