This code 2962 DTCs document is a troubleshooting procedure for an EGR temperature fault on ISB, ISC, and ISL engines. It explains the circuit description, fault logic, likely causes, cooling system checks, EGR system inspections, and INSITE service tool steps used to clear the code. The file is supplied as a 10-page English PDF for workshop reference.
Official code 2962 DTCs document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB6.7 CM2150 (2007-09); extract also references ISB, ISC, and ISL engines |
| System/Group | DTCs; Exhaust Gas Recirculation Temperature Sensor Circuit |
| Year/Revision | Last Modified: 20-Jul-2010 |
| Pages | 10 |
| File size | 0.2 MB |
| Format | |
| Language | English |
Document table of contents
- Overview
- Circuit Description
- Component Location
- FAULT CODE 2962
- Conditions for Running the Diagnostics
- Conditions for Setting the Fault Codes
- Action Taken When the Fault Code is Active
- Conditions for Clearing the Fault Code
- Shop Talk
- Associated Procedures
- Troubleshooting Steps
- Guided Step 1 – Check the fault codes.
- Guided Step 2 – Check the cooling system.
- Guided Step 3 – Check the EGR system.
- Guided Step 4 – Clear the fault code.
Applicable truck models
This procedure applies to Cummins ISB6.7 CM2150 coverage from the listed file group, and the extract also names ISB, ISC, and ISL in relation to the Exhaust Gas Recirculation Temperature Sensor Circuit. The fault is identified as Fault Code 2962, PID P412, SPN 412, FMI 0/16, with an amber lamp and a severe fueling derate when EGR temperature exceeds the engine protection limit. For manufacturer information, visit Cummins official website.
Who needs this code 2962 DTCs manual
Mechanics and workshop owners need this code 2962 DTCs manual when diagnosing high EGR temperature complaints, amber CHECK ENGINE light events, or derate conditions on covered Cummins engines. It is useful when using INSITE electronic service tool to check active and inactive fault codes, review Fault Codes 1899 or 2359, verify coolant mixture, confirm coolant level, inspect EGR differential pressure sensor leaks, clean plugged EGR differential pressure flow ports, and decide whether EGR cooler cleaning is required.
The diagnostic notes that the fault may not be active with no load in the shop, because the engine must be loaded to trigger the condition. Possible causes listed include a fouled EGR cooler, plugged or leaking EGR differential flow ports, a damaged EGR valve, a stuck open turbocharger control valve, low readings from the EGR differential pressure sensor or EGR valve position sensor, high exhaust temperatures, low coolant level, high coolant temperature, incorrect coolant/water mixture, and a stuck closed variable geometry turbocharger.
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