FINAL DRIVE GP 5T7155 - Caterpillar

Table 1
J1939 Code and Description CDL Code and Description Comments
5480-16
Aftertreatment #1 DEF Controller Temperature : High - moderate severity (2) E14130(2)
High Aftertreatment #1 DEF Controller #1 Temperature The temperature of the Dosing Control Unit (DCU) has exceeded the trip point of 116° C (240° F).
Illustration 1 g06194551
DCU
Complete the procedure in the order in which the steps are listed.
Table 2
Troubleshooting Test Steps Values Results
1. Determine the Source of the High Temperature
A. Evaluate the installation location of the DCU.
B. Check for heat sources close to the DCU.
Heat Source
Result: The DCU is located close to a heat source.
Repair: Eliminate the heat source by installing a heat shield or moving the component creating the heat.
Proceed to Test Step 2.
2. Replace the DCU
A. Replace the DCU.
DCU
Result: The DCU was replaced.
Verify that the problem is resolved.
If the procedure did not correct the issue, contact your Cat dealer Technical Communicator (TC). For further assistance, your TC can confer with the Dealer Solutions Network (DSN).