Fault Codes:
Caterpillar CAT320 $11B9
Solution:
The maintenance steps operate under the optimal engine condition, but the SCR inlet temperature required for after-treatment regeneration cannot be obtained. Please refer to Fault Diagnosis and Troubleshooting," Incorrect Intake Temperature of SCR Catalyst ". If the problem persists, please contact the Agent Solutions Network (DSN) for further advice.
Fault Description:
The inlet temperature of the SCR catalyst in post-treatment #1 is too low
