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HOSE AS 3904571 - Caterpillar



3904571 HOSE AS Caterpillar parts HOSE
Rating:
21
Alternative (cross code) number:
CA3904571
390-4571
3904571
Caterpillar 3904571 HOSE AS

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Illustration 4 g01959833
P16 harness connector for the ITSM (r) Cylinder 1 (yellow) (f) Cylinder 1 (red) (R) Cylinder 2 (yellow) (W) Cylinder 2 (red) (J) Cylinder 3 (yellow) (E) Cylinder 3 (red) (k) Cylinder 4 (yellow) (a) Cylinder 4 (red) (AC) Cylinder 5 (yellow) (v) Cylinder 5 (red) (V) Cylinder 6 (yellow) (M) Cylinder 6 (red) (q) Cylinder 7 (yellow) (e) Cylinder 7 (red) (AE) Cylinder 8 (yellow) (y) Cylinder 8 (red) (H) Cylinder 9 (yellow) (B) Cylinder 9 (red) (Z) Cylinder 10 (yellow) (P) Cylinder 10 (red) (u) Cylinder 11 (yellow) (j) Cylinder 11 (red) (AG) Cylinder 12 (yellow) (AA) Cylinder 12 (red) (g) Left turbocharger inlet (yellow) (X) Left turbocharger inlet (red) (C) Left turbocharger outlet (yellow) (F) Left turbocharger outlet (red) (N) Right turbocharger inlet (yellow) (S) Right turbocharger inlet (red)
Disconnect the 54-pin connector from the ITSM. Thoroughly inspect the 54-pin connectors. Ensure that the connectors are in good condition.Note: When the 54-pin connectors are disconnected, an active "current below normal" diagnostic code will be generated for all of the thermocouples. This is normal. Only pay attention to the diagnostic codes for the suspect thermocouple.
Access the "Active Diagnostic" screen for the ITSM on Cat ET. Allow a minimum of 30 seconds for any diagnostic codes to be generated. Observe the "Active Diagnostic" screen.
Install a jumper wire into the terminals for the suspect sensor on the 54-pin connector on the ITSM. For identification of the terminals, refer to Illustration 1.
Observe the "Active Diagnostic" screen. Allow a minimum of 30 seconds for any diagnostic codes to be generated.Expected Result:When the 54-pin connectors were disconnected, an "current below normal" diagnostic code was generated for the suspect sensor. When the jumper wire was installed, a "voltage below normal" diagnostic code was generated.Results:
Yes - When the 54-pin connectors were disconnected, an "current below normal" diagnostic code was generated for the suspect sensor. When the jumper wire was installed, a "voltage below normal" diagnostic code was generated. The ITSM is OK. There is a problem in the harness between the ITSM and the connector for the suspect thermocouple.Repair: Remove the jumper wire. Replace the harness in order to ensure reliable operation. Clear the logged diagnostic codes and verify


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