COMPRESSOR AS 0R2910 - Caterpillar

Use this procedure to diagnose electronic faults in the air filter restriction switch circuit.This procedure covers the following diagnostic code:
Table 1
Diagnostic Trouble Codes for the Air Filter Restriction Switch
J1939 Code Description Notes
107-2 Engine Air Filter 1 Differential Pressure : Erratic, Intermittent, or Incorrect This code indicates a fault in the circuit for the air filter restriction switch.
The Electronic Control Module (ECM) detects the following conditions:
The signal from the air filter restriction switch indicates a restriction.
The engine is not running.
The ECM has been powered for at least 6 seconds.
The warning lamp will come on.
Monitoring of air filter restriction when the engine is running will be disabled whilst this code is active. If the engine is equipped with an air filter restriction switch, the type of switch that is installed can be either "Normally Open" or "Normally Closed". The parameter for the type of switch that is installed can be set using