AutoCodes – Chrysler – P0505 Chrysler

P0505 Chrysler Code - Idle Control System Malfunction

Quick Answer

The throttle body has an air control passage that provides air for the engine at idle (the throttle plate is closed). Common causes include Faulty Idle Control System motor, Idle Control System motor harness is open or shorted, Idle Control System motor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0505 Chrysler indicates Idle Control System Malfunction.
Common causes: Common causes include Faulty Idle Control System motor, Idle Control System motor harness is open or shorted, Idle Control System motor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 14,006

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P0505 Chrysler Description

The throttle body has an air control passage that provides air for the engine at idle (the throttle plate is closed). The IAC motor pintle protrudes into the air control passage Throttle Body Air Control Passage and regulates air flow through it. Based on various sensor inputs, the Powertrain Control Module (PCM) adjusts engine idle speed by moving the IAC motor pintle in and out of the air control passage. The IAC motor is positioned when the ignition key is turned to the On position.

OBDII Code P0505 Chrysler - Idle Control System Malfunction - AutoCodes.com — P0505 Chrysler Code - Idle Control System Malfunction

What does this mean?

What are the Possible Causes of the DTC P0505 Chrysler?

Faulty Idle Control System motor
Idle Control System motor harness is open or shorted
Idle Control System motor circuit poor electrical connection
Faulty Powertrain or Engine Control Module
Vaccum leaks or damaged hoses or improper routing

How to Fix the DTC P0505 Chrysler?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0505 Chrysler code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.