← View Generic P0515 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

P0515: P0515: Idle Air Control (IAC) Valve Circuit Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$50 - $200
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
✅ Yes
Save money
Your Vehicle
2020 Chevrolet
SILVERADO 1500 PICKUP
⚠️

Important for 2020 Chevrolet SILVERADO 1500 PICKUP Owners

Before starting repairs, verify which engine your 2020 Chevrolet SILVERADO 1500 PICKUP has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does P0515 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The P0515 trouble code indicates a malfunction in the idle air control (IAC) valve circuit, which regulates engine idle speed and air/fuel mixture.
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Symptoms

  • • Rough idle
  • • hesitation
  • • stalling
  • • or difficulty starting
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Common Causes

  • • Faulty IAC valve
  • • vacuum leaks
  • • clogged air filter
  • • faulty throttle position sensor
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How to Fix P0515 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check and clean the IAC valve and throttle body. 2. Replace the IAC valve if faulty. 3. Inspect and repair vacuum leaks. 4. Replace the air filter if dirty.

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Need Maintenance Info for Your SILVERADO 1500 PICKUP?

Get oil capacity, filter specs, and torque settings for your specific 2020 Chevrolet SILVERADO 1500 PICKUP.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Idle Air Control (IAC) valve Shop ↗ vacuum hose Shop ↗ air filter Shop ↗

Essential Tool

Must Have

OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with P0515

P0513 Sequential Code

P0513: Idle Air Control (IAC) Motor Circuit Malfunction

Medium
P0514 Sequential Code

P0514: Idle Air Control (IAC) Motor Circuit Malfunction

Medium
P0516 Sequential Code

P0516: Idle Air Control (IAC) Valve Circuit Malfunction

Medium
P0517 Sequential Code

P0517: Idle Air Control (IAC) Motor Circuit Malfunction

Medium

💡 Why These Codes Are Related:

  • • Similar Issues: Same root cause or component failure
  • • Related Problems: Often occur together due to system interactions
  • • Sequential Codes: Progressive failure stages or multiple sensors
  • • Same System: Components within the same automotive system