Caterpillar — C11, C13, C15 and C18 Industrial Engines

RENR5042-02 71 Troubleshooting Section Results: System Response: OK STOP. The Electronic Control Module (ECM) will log the diagnostic code. The ECM flags atmospheric pressure as invalid data and a default value of 100 kPa (15 psi) is used. i02071664 CID 0273 FMI 00 Turbo Outlet Pressure above normal Possible Performance Effect: SMCS Code: 1917-038 Low power Troubleshooting: Conditions Which Generate This Code: Perform the following diagnostic procedure: “Engine Pressure Sensor Open or Short Circuit - Test” The Electronic Control Module (ECM) detects all of the following conditions: The outlet pressure of the turbocharger is greater than 200 kPa (29 psi). Results: OK STOP.

The engine speed is within 50 rpm of low idle for five seconds. i02281092 CID 0274 FMI 04 Atmospheric Pressure short to ground The ECM has been powered for at least three seconds. System Response: SMCS Code: 1923-038 The ECM will log the diagnostic code. Conditions Which Generate This Code: The ECM flags turbocharger compressor outlet pressure as invalid data and a default value of 0 kPa (0 psi) is used. The signal voltage from the atmospheric pressure sensor is below 0.2 VDC for at least eight seconds. System Response: Possible Performance Effect: The Electronic Control Module (ECM) will log the diagnostic code.

The ECM flags atmospheric pressure as invalid data and a default value of 100 kPa (15 psi) is used. Low power Troubleshooting: Perform the following diagnostic procedure: “Engine Pressure Sensor Open or Short Circuit - Test” Possible Performance Effect: Low power Results: Troubleshooting: OK STOP. Perform the following diagnostic procedure: “Engine Pressure Sensor Open or Short Circuit - Test” i02281091 CID 0274 FMI 03 Atmospheric Pressure open/short to +batt Results: OK STOP. SMCS Code: 1923-038 Conditions Which Generate This Code: The signal voltage from the atmospheric pressure sensor is above 4.8 VDC for at least eight seconds.