HARNESS AS-TRANSMISSION 3324905 - Caterpillar

Which Generate This Code:The Electronic Control Module (ECM) detects all of the following conditions:
The inlet air restriction is at least 9 kPa (36 inch of H2O) in either the right turbocharger or in the left turbocharger..
274-03 Atmospheric Pressure open/short to +batt is not active.
274-04 Atmospheric Pressure short to ground is not active.
275-03 Right Turbo Inlet Pressure open/short to +batt is not active.
275-04 Right Turbo Inlet Pressure open/short to ground is not active.
276-03 Left Turbo Inlet Pressure open/short to +batt (if equipped) is not active.
276-04 Left Turbo Inlet Pressure open/short to ground (if equipped) is not active.System Response:The ECM will log the event. The ECM will transmit a warning to the display in the cab. The ECM will derate the engine power by a maximum of 15 percent. The ECM will determine the value of the left air filter restriction and/or of the right air filter restriction. The ECM will use the value that is greater as the actual pressure of the air inlet restriction. The E272 Air Inlet Restriction Warning is active until the ECM is powered down.
Low power
There may be a problem with the air inlet system.
There may be a problem with one of the air inlet pressure sensors.Test Step 1. Check for Active Diagnostic Codes
Connect the Caterpillar Electronic Technician (Cat ET) to the data link connector.
Turn the keyswitch to the ON position.
Check for any active diagnostic codes or logged diagnostic codes.Expected Result:No diagnostic codes are present.Results:
OK - Proceed to Test Step 2.
Not OK - Repair: Repair the diagnostic codes that are present. Refer to the appropriate topic in the "Troubleshooting With a Diagnostic Code" section of this manual.Ensure that the repair eliminates the problem.STOPTest Step 2. Check the Air Inlet System for Restrictions
Perform a check of the air inlet system. Inspect the air filter and the rest of the air inlet system for restrictions.Expected Result:There are no restrictions in the air inlet system.Results:
OK - There may be an intermittent problem.Repair: Monitor the operation of the engine.Repair the problem.Ensure that the repair eliminates the problem.STOP
Not OK - Repair: Repair the problem.Ensure that the repair eliminates the problem.STOP