Diesel Oxidation Catalyst Has Incorrect Inlet Temperature
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| Diagnostic Trouble Code for DOC Has Incorrect Inlet Temperature | |||
|---|---|---|---|
| J1939 Code | CDL Code | Code Description
(code descriptions may vary) |
Comments |
| 4765-17 | E2165 (1) | Aftertreatment #1 Diesel Oxidation Catalyst Intake Gas Temperature : Low - least severe (1) | ECM detects that the DOC inlet temperature is below the acceptable range during hydrocarbon dosing.
The code is logged. |
| Follow the troubleshooting procedure to identify the root cause of the fault. | |||
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| Associated Codes | |
|---|---|
| J1939 Codes | CDL Codes |
| 649-5 | 3512-5 |
| 649-6 | 3512-6 |
| 649-7 | E1263 (2) |
| 5625-3 | 3513-3 |
| 5625-4 | 3513-4 |
Complete the procedure in the order in which the steps are listed.
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| Troubleshooting Test Steps | Values | Results |
|---|---|---|
1. Check for Diagnostic Trouble Codes A. Turn the keyswitch to the ON position. Do not start the engine. B. Connect to the electronic service tool. C. Check for associated diagnostic trouble codes. |
Diagnostic trouble codes |
Result: A 4765-17 code is active or recently logged. Proceed to Test Step 2. Result: An associated code is active or recently logged. Troubleshoot the logged or active code. Refer to Troubleshooting, "Diagnostic Trouble Codes". Result: No associated diagnostic trouble codes are active or recently logged. Proceed to Test Step 3. |
2. Check the Exhaust System A. Check the exhaust system for gas leaks between the Exhaust Back Pressure Regulator (EBPR) and the Clean Emissions Module (CEM). B. Check for missing or damaged exhaust system insulation. C. Make sure that the exhaust piping between the EBPR and the CEM is no longer than |
Exhaust system |
Result: The exhaust system has a gas leak. Repair: Make the necessary repairs. Proceed to Test Step 3. Result: The exhaust system insulation is damaged or missing. Repair: Make the necessary repairs. Proceed to Test Step 3. Result: The exhaust system is not within the specification. Repair: Contact the Dealer Solutions Network (DSN). Proceed to Test Step 3. |
3. Check the Exhaust System Temperature A. Connect to the electronic service tool. B. Run the engine. C. Perform the "Manual Hydrocarbon Dosing Capability Test". |
Test |
Result: The "Manual Hydrocarbon Dosing Capability Test" completed successfully. Return the unit to service. Result: The "Manual Hydrocarbon Dosing Capability Test" failed. Associated diagnostic trouble codes are active. Troubleshoot the logged or active code. Refer to Troubleshooting, "Diagnostic Trouble Codes". Result: The "Manual Hydrocarbon Dosing Capability Test" failed. An error code is generated by the electronic service tool. Troubleshoot the error code. Refer to Troubleshooting, "Service Tool Error Identifiers". Result: The "Manual Hydrocarbon Dosing Capability Test" failed. No associated diagnostic trouble codes are active. Contact the Dealer Solutions Network (DSN). |
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