AutoCodes – Nissan – P1818 Nissan

P1818 Nissan Code - Actuator Position Switch

Quick Answer

The actuator position switch detects the current actuator motor range of the transfer case. Common causes include Faulty Actuator Position Switch, Actuator Position Switch harness is open or shorted, Actuator Position Switch 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: P1818 Nissan indicates Actuator Position Switch.
Common causes: Common causes include Faulty Actuator Position Switch, Actuator Position Switch harness is open or shorted, Actuator Position Switch 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 21,634

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 Sep 21, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1818 Nissan Description

The actuator position switch detects the current actuator motor range of the transfer case. DTC P1818 will set if either of the following occur:
- Improper signal from actuator position switch is input due to open or short circuit.
- Malfunction is detected in actuator position switch.

OBDII Code P1818 Nissan - Actuator Position Switch - AutoCodes.com — P1818 Nissan Code - Actuator Position Switch

What does this mean?

What are the Possible Causes of the DTC P1818 Nissan?

Faulty Actuator Position Switch
Actuator Position Switch harness is open or shorted
Actuator Position Switch circuit poor electrical connection

How to Fix the DTC P1818 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 P1818 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.