CID 0274 FMI 13 Atmospheric Pressure calibration required
Conditions Which Generate This Code:
The ECM detects one of the following conditions:
- The sensor was never calibrated.
- The atmospheric pressure is less than 45 kPa (6.5 psi) during calibration.
- The atmospheric pressure is greater than 111 kPa (16 psi) during calibration.
- The atmospheric pressure changes by 5 kPa (0.75 psi) during calibration.
- 274-03 "Atmospheric Pressure open/short to +batt" is active.
- 274-04 "Atmospheric Pressure short to ground" is active.
System Response:
The ECM will log the diagnostic code. The diagnostic code may be viewed on a display module or on ET. The ECM flags atmospheric pressure as invalid data and a default value of 0 kPa (0 psi) is used for the offset.
- Low power
Further troubleshooting is required.
Test Step 1. Perform the following test: Analog Sensor - Calibrate
Results:
- OK - Stop.
Caterpillar Information System:
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