fault code 2964 DTCs is the Cummins ISX11.9 CM2250 troubleshooting document for Intake Manifold 1 Temperature – Data Valid But Above Normal Operational Range – Least Severe Level (SPN 105, FMI 0/15). This 7-page factory guide explains the circuit, the conditions that set the code, and the guided repair steps used with the INSITE electronic service tool. The intake manifold 1 temperature sensor is a variable resistor sensor and is used to measure the temperature of the air entering the intake manifold of the engine.
Official document details
| Brand | Cummins |
| Model coverage | ISX11.9 CM2250/ISB6.7 CM2250/ISC8.3 and ISL9 CM2250/ISX15 CM2250 |
| System / group | ISX11.9 CM2250 (2010-12) / DTCs |
| Fault code | 2964 (PID P105) |
| SPN / FMI | 105 / 0/15 |
| Warning lamp | None |
| Bulletin number | 2883445 |
| Revision | Last modified 11-Jun-2010 |
| Pages | 7 |
| File size | 0.2 MB |
| Format | |
| Language | English |
fault code 2964 DTCs table of contents
- Overview and circuit description
- Component location
- Conditions for running the diagnostics
- Conditions for setting the fault code
- Action taken when the fault code is active
- Conditions for clearing the fault code
- Shop Talk and possible causes
- Associated procedures table
- Guided troubleshooting steps
Applicable truck models
This troubleshooting procedure applies to Cummins ISX11.9 CM2250/ISB6.7 CM2250/ISC8.3 and ISL9 CM2250/ISX15 CM2250 engines. FAULT CODE 2964 Intake Manifold 1 Temperature – Data Valid But Above Normal Operational Range – Least Severe Level CODE REASON EFFECT Fault Code:. The document states the code is set when ecm detects that the intake manifold temperature is greater than 120°c [248°f]. When the code is active, no dashboard warning lamp is commanded on for this information fault code. Full specifications and procedure references are published by Cummins on the Cummins official website.
Who needs this fault code 2964 DTCs manual
Diesel technicians and workshop owners diagnosing Data Valid But Above Normal Operational Range – Least Severe Level on ISX11.9 CM2250 engines need this reference. Possible causes documented in the Shop Talk section include plugged charge-air cooler fins, restricted airflow through the charge-air cooler, an undersized charge-air cooler, high turbocharger compressor outlet temperature. The guide walks through each guided step and the INSITE electronic service tool tests required to validate the repair and clear the code.
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