OBD Guide
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U1460

Engine Idle Speed Message Rationality

U1460 is an OBD-II diagnostic trouble code meaning: Engine Idle Speed Message Rationality. Common causes: wiring harness damage, malfunction of the idle speed sensor. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Unstable engine operation at idle
  • Floating idle speed
  • Check Engine Light Illuminates
  • Reduced engine power
  • Problems starting the engine

Causes

  • Wiring harness damage
  • Malfunction of the idle speed sensor
  • Problems with the engine control unit (ECU)
  • Interference in the electrical system
  • Software errors in the control system

How to Fix

  1. Check the integrity of the wiring harness
  2. Diagnose the idle speed sensor
  3. Check connections and contacts in the circuit
  4. Update ECU software
  5. Check for interference in the electrical system

Related codes

U1461U1462U1459

FAQ

What does the U1460 code mean?

U1460 is an OBD-II diagnostic trouble code that indicates: Engine Idle Speed Message Rationality

What causes a U1460 error code?

The most common causes of U1460 include: Wiring harness damage; Malfunction of the idle speed sensor; Problems with the engine control unit (ECU); Interference in the electrical system.

How do I fix a U1460 diagnostic trouble code?

To fix U1460: Check the integrity of the wiring harness. Diagnose the idle speed sensor. Check connections and contacts in the circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U1460?

Yes, but get it checked soon

How much does it cost to fix U1460?

The estimated repair cost for U1460 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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