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Engine-Codes - Generic - U1460

U1460 - Engine Idle Speed Message Rationality

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

U1460 Possible Causes

What does this mean?
  • Faulty Transmission Control Module (TCM)
  • Transmission Control Module (TCM) harness is open or shorted
  • Transmission Control Module (TCM) circuit poor electrical connection

How is the U1460 code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

What is the cost to diagnose the U1460 code

Labor: 1.0

The cost to diagnose the U1460 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
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Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

U1460 Meaning

This diagnostic checks the availability and rationality of the Engine Idle Speed signal which is sent by the Engine Control Module (ECM) via a Controller Area Network (CAN) message. The diagnostic determines the availability by checking the received value is not equal to the Signal Not Available (SNA) default value. Then the diagnostic checks the rationality by confirming the signal value is within the range defined by a lower and upper threshold. When the CAN signal value is below a calibratable lower threshold or it exceeds a calibratable upper threshold or the signal is not available, the Powertrain Control Module (PCM) sends a Signal Not Available (SNA) default value to the PCM. When the PCM reads one of these conditions then the Diagnostic Trouble Code (DTC) U1460 is set.

More Information

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