AutoCodes – Honda – P1242 Honda

P1242 Honda Code - Throttle Valve Control Motor Circuit 2 Malfunction

Quick Answer

P1242 Honda indicates Throttle Valve Control Motor Circuit 2 Malfunction. Common causes include Dirty Throttle Body, Faulty Throttle Control Motor, Throttle Control Motor harness is open or shorted. 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: P1242 Honda indicates Throttle Valve Control Motor Circuit 2 Malfunction.
Common causes: Common causes include Dirty Throttle Body, Faulty Throttle Control Motor, Throttle Control Motor harness is open or shorted.
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 2,746

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 Jul 21, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
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Code P1242 Honda Description

OBDII Code P1242 Honda - Throttle Valve Control Motor Circuit 2 Malfunction - AutoCodes.com — P1242 Honda Code - Throttle Valve Control Motor Circuit 2 Malfunction

What does this mean?

What are the Possible Causes of the DTC P1242 Honda?

Dirty Throttle Body
Faulty Throttle Control Motor
Throttle Control Motor harness is open or shorted
Throttle Control Motor circuit poor electrical connection

How to Fix the DTC P1242 Honda?

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 P1242 Honda 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.