BRACKET AS 3G2573 - Caterpillar

Illustration 1 g03777701
CEM (typical) (1) Piping for the combustion air (2) Combustion air valve (3) Pressure sensor for the inlet of the combustion air (4) DPF differential pressure sensor (5) Cable for CEM connector to the ECM (6) Actuator for the combustion air valve (7) Inlet for the combustion air valve (8) Inlet for the combustion air to the ARD head (9) ARD head
Table 2
Troubleshooting Test Steps     Values     Results    
1. Check for Associated Diagnostic Trouble Codes
A. Download the "Warranty Report" from the engine ECM before performing any troubleshooting or clearing diagnostic trouble codes.
B. Table 3 lists the diagnostic trouble codes that are associated with an E1170 (2)/ 3837-18 code. Determine if any of the codes in Table 3 are present.
C. Determine the diagnostic code that is present.
   
Diagnostic Code    
Result: An associated diagnostic trouble code is not present.
Proceed to Test Step 2.
Result: An associated diagnostic trouble code is present.
Repair: Troubleshoot the associated code.
STOP.    
2. Inspect the Piping Between the Compressor and the ATAAC
A. Visually Inspect the piping between the compressor and the ATAAC.
B. Check for cracks in the piping.
C. Check for loose hardware or damaged hardware.
   
Piping    
Result: The piping is damaged or cracked.
Repair: Replace the piping or repair the piping. Proceed to Test Step 6.
Result: The piping is not damaged or cracked.
Proceed to Test Step 3.
   
Table 3
Associated Diagnostic Trouble Codes    
CDL Code    J1939 Code    
E1045     102    
E1156     3609    
2489     3487    
2490     3488    
3471     5591    
3472     5591    
3493     3837    
Illustration 2 g01958186
(10) Piping between the compressor and the air valve
Table 4
Troubleshooting Test Steps    Values    Results    
3. Inspect the Piping Between the Compressor and the Air Valve
A. Inspect the piping (10) between the compressor and the air valve.
B. Check for cracks in the piping.
C. Check for loose hardware or damaged hardware.
   
Piping    
Result: The piping is damaged or cracked.
Repair: Replace the piping or repair the piping. Proceed to Test Step 6.
Result: The piping is not damaged or cracked.
Proceed to Test Step 4.
   
Illustration 3 g02220233
CEM (typical) (11) Clamps (12) Piping between the combustion air valve and the pressure sensor
Table 5
Troubleshooting Test Steps    Values    Results    
4. Inspect the Piping from the Combustion Air Valve to the Pressure Sensor
A. Inspect the piping from the combustion air valve to the pressure sensor (12) .
B. Check for air leaks.
C. Check for loose hardware or damaged hardware.
D. Check the clamps on the piping. Make sure that the clamps are tight.
   
Damaged or Cracked Piping or Air Leaks    
Result: The piping is damaged or cracked.
Repair: Replace the piping or repair the piping. Proceed to Test Step 6.
Result: The piping is not damaged or cracked.
Proceed to Test Step 5.
   
5. Inspect the Turbocharger
A. Refer to the Reuse and Salvage Guidelines in order to determine if the turbocharger has failed.
   
Failed Turbocharger    
Result: