This Cummins VGT fault 1962 document is a troubleshooting manual for Fault Code 1962 on Cummins ISB6.7 CM2150 engines. It explains the VGT actuator driver over-temperature fault, the diagnostic conditions, the amber CHECK ENGINE light response, and guided checks using INSITE™ electronic service tool.
Official Cummins VGT fault 1962 document details
| Brand | Cummins |
|---|---|
| Model coverage | ISB6.7 CM2150 (2007-09) |
| System/Group | DTCs; VGT Actuator Circuit |
| Publication no. | Not specified in the extract |
| Year/Revision | Last Modified: 20-Jul-2010 |
| Pages | 6 |
| File size | 0.2 MB |
| Format | |
| Language | English |
Document table of contents
- Overview
- Circuit Description
- Component Location
- Conditions for Running the Diagnostics
- FAULT CODE 1962
- 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 VGT actuator cooling system.
- Guided Step 1A – Check for fault codes 1843 and 1844.
- Guided Step 1B – Inspect VGT actuator coolant lines for links and blockages.
- Guided Step 2 – Clear the fault code.
- Guided Step 2A – Disable the fault code.
- Guided Step 2B – Clear the inactive fault codes.
Applicable truck models
This file applies to Cummins ISB6.7 CM2150 (2007-09) engine diagnostics in the DTCs group. The extract also references service procedures for ISB CM2150 engines, and related procedure references for ISC and ISL CM2150 engines when repairing or replacing blocked VGT actuator coolant lines. The fault concerns the variable geometry turbocharger actuator, which is located on the turbocharger bearing housing and communicates with the primary engine ECM through the J1939 datalink. The diagnostic runs continuously when the keyswitch is turned on. Manufacturer information is available from Cummins official website.
Who needs this Cummins VGT fault 1962 manual
Workshop owners, diesel mechanics, and fleet technicians need this VGT fault 1962 manual when an ISB6.7 CM2150 logs SPN 641 FMI 0/15 with an amber CHECK ENGINE lamp. The procedure is useful for checking high internal VGT actuator temperature, coolant temperature-related fault codes, actuator coolant line kinks, blockages, and inactive fault clearing.
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