IDLER GP-FRONT 5A5212 - Caterpillar

Which Generate This Code:The secondary Electronic Control Module (ECM) detects one of the following conditions. The left air filter outlet pressure is 8 kPa (1.2 psi) from the compartment pressure. The pressure is less than 45 kPa (6.6 psi). The pressure is greater than 111 kPa (16 psi). The pressure changed more than 5 kPa (0.7 psi) during a calibration attempt. A pressure calibration has not been performed on a new ECM. A manual calibration failed.System Response:The CID-FMI may be viewed on a display module or on the Caterpillar Electronic Technician (ET). The diagnostic codes are active. The diagnostic codes are not logged in memory. The ECM records filter restriction as invalid data. The monitoring system for the inlet air is disabled.Test Step 1. Perform the following test: Analog Sensor - CalibrateResults:
OK - Stop.
REPAIRED, OK - Stop.