OBD Guide
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P1523

Electronic Throttle Control Throttle Return

P1523 is an OBD-II diagnostic trouble code meaning: Electronic Throttle Control Throttle Return. Common causes: throttle return spring malfunction, dirty or stuck throttle valve. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Reduced engine power
  • Switching to emergency mode
  • Unstable operation at idle
  • Check Engine Light Illuminates
  • Acceleration problems

Causes

  • Throttle return spring malfunction
  • Dirty or stuck throttle valve
  • Problems with the throttle motor
  • Open or short circuit in control circuit
  • Throttle Position Sensor Malfunction

How to Fix

  1. Check the throttle mechanism for binding
  2. Clean the throttle valve from dirt
  3. Check the condition of the return spring
  4. Diagnose the electric motor and position sensors
  5. Check the integrity of wiring and connectors

Related codes

P1520P1521P1522

Error P1523 by Vehicle Brand

BMWBuickCadillacChevroletChryslerGMGMCKiaOldsmobileSaturnVolkswagen

FAQ

What does the P1523 code mean?

P1523 is an OBD-II diagnostic trouble code that indicates: Electronic Throttle Control Throttle Return

What causes a P1523 error code?

The most common causes of P1523 include: Throttle return spring malfunction; Dirty or stuck throttle valve; Problems with the throttle motor; Open or short circuit in control circuit.

How do I fix a P1523 diagnostic trouble code?

To fix P1523: Check the throttle mechanism for binding. Clean the throttle valve from dirt. Check the condition of the return spring. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1523?

Limited driving only, diagnose soon

How much does it cost to fix P1523?

The estimated repair cost for P1523 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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