This document is a CAT C-12 idle shutdown troubleshooting procedure published by Caterpillar for on-highway truck engines. It addresses diagnostic trouble code 0071-01 (47), explaining the conditions that trigger the idle shutdown event and the steps required to diagnose and resolve it. The guide is part of the broader 3406E, C-10 and C-12 troubleshooting media set.
Official CAT C-12 idle shutdown document details
| Brand | Caterpillar (CAT) |
| Model coverage | C-12 Truck Engine 9NS (9NS00001-UP); also references 3406E, C-10 |
| System / Group | Engine Controls — SMCS 1901-038 / DTC 0071-01 Idle Shutdown (47) |
| Publication no. | RENR1328-08 |
| Year / Revision | Published 01/10/2008, updated 16/10/2008 |
| Pages | 1 |
| File size | 0.1 MB |
| Format | |
| Language | English |
Document table of contents
- Conditions Which Generate This Code — ECM detection of idle shutdown timer expiration
- System Response — ECM behavior after engine shutdown, auxiliary output programming details, customer password requirements
- Test Step 1 — Idle Shutdown Timer Test procedure and expected results
Applicable truck models
This troubleshooting bulletin applies to Caterpillar on-highway truck engines in the 3406E, C-10, and C-12 families. The specific configuration referenced is the C-12 Truck Engine serial prefix 9NS (9NS00001-UP). Other serial prefixes covered under the same media number include 8YS, 5DS, and 1LW. Workshops servicing Class 8 trucks equipped with these Caterpillar powertrains will find this document directly relevant. For additional product and service information, visit the Caterpillar official support page.
Who needs this C-12 idle shutdown manual
Fleet mechanics and independent workshop owners diagnosing an unexpected engine shutdown linked to DTC 0071-01 (47) on Caterpillar 3406E, C-10, or C-12 engines need this reference. It clarifies how the ECM handles auxiliary outputs programmed to “Engine Shutdown Output” and notes that customer passwords are required to clear the diagnostic code, making it essential reading before connecting an electronic service tool.
The full PDF is available in the DiagTechPro manuals library; a free account is required to download.
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