AutoCodes – Nissan – P1243 Nissan

P1243 Nissan Code - Supercharger Bypass Valve Circuit Malfunction

Quick Answer

P1243 Nissan indicates Supercharger Bypass Valve Circuit Malfunction. Common causes for P1243 Nissan include wiring or connector problems, a faulty related sensor or actuator, and control module or calibration issues. 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: P1243 Nissan indicates Supercharger Bypass Valve Circuit Malfunction.
Common causes: Common causes for P1243 Nissan include wiring or connector problems, a faulty related sensor or actuator, and control module or calibration issues.
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 3,565

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 21, 2019

Description
How To Fix
Cost to Diagnose
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Code P1243 Nissan Description

OBDII Code P1243 Nissan - Supercharger Bypass Valve Circuit Malfunction - AutoCodes.com — P1243 Nissan Code - Supercharger Bypass Valve Circuit Malfunction

How to Fix the DTC P1243 Nissan?

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 P1243 Nissan 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.