AutoCodes – Infiniti – P1817 Infiniti

P1817 Infiniti Code - Actuator Motor

Quick Answer

The actuator motor receives signals from the transfer control unit and controls shift rods which shift the transfer case. Common causes include Faulty Actuator Motor, Actuator Motor harness is open or shorted, Actuator 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
P1817 Infiniti indicates Actuator Motor.
Common causes
Common causes include Faulty Actuator Motor, Actuator Motor harness is open or shorted, Actuator 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 4,640
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 20, 2019
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Code P1817 Infiniti Description

The actuator motor receives signals from the transfer control unit and controls shift rods which shift the transfer case. DTC P1817 will set when any of the following occur:
- Motor does not operate properly due to open or short circuit in actuator motor.
- Malfunction is detected in the actuator motor. (When 4WD shift switch is operated and actuator motor does not operate)
- Malfunction is detected in transfer shift high relay or transfer shift low relay.
OBDII Code P1817 Infiniti - Actuator Motor - AutoCodes.com
P1817 Infiniti Code - Actuator Motor

What are the Possible Causes of the DTC P1817 Infiniti?

  • Faulty Actuator Motor
  • Actuator Motor harness is open or shorted
  • Actuator Motor circuit poor electrical connection

How to Fix the DTC P1817 Infiniti?

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 P1817 Infiniti 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.

Need more information about the P1817 Infiniti code?

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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.

Frequently Asked Questions about P1817 Infiniti Code

1. What does the OBDII code P1817 mean on an Infiniti?

The P1817 code indicates an issue with the actuator motor in the transmission system, typically related to its position or performance.

2. What are the common symptoms of code P1817 in an Infiniti?

Symptoms may include erratic shifting, transmission stuck in one gear, reduced fuel efficiency, or the Check Engine Light being illuminated.

3. What causes the P1817 code to trigger in an Infiniti?

Common causes include a faulty actuator motor, damaged wiring or connectors, a malfunctioning transmission control module (TCM), or internal transmission issues.

4. Can I drive my Infiniti with the P1817 code?

It is not recommended to drive for extended periods with this code, as it may lead to further transmission damage or unsafe driving conditions.

5. How is the P1817 code diagnosed in an Infiniti?

A technician will use a scan tool to confirm the code, inspect the actuator motor, check the wiring and connections, and possibly test the TCM for proper function.

6. How do I fix the P1817 code on my Infiniti?

Repairs may include replacing the actuator motor, repairing or replacing damaged wiring, or reprogramming or replacing the TCM if necessary.

7. Is the actuator motor the only part that can cause the P1817 code?

No, other components like the wiring, connectors, or TCM can also cause this code if they fail or experience issues.

8. How much does it cost to repair the P1817 code on an Infiniti?

Repair costs can vary widely, from $200 to $1,000 or more, depending on whether the issue is with the actuator motor, wiring, or TCM.

9. Can a software update fix the P1817 code on my Infiniti?

In some cases, a software update to the TCM may resolve the issue if the problem is related to programming errors.

10. What can I do to prevent the P1817 code from reoccurring in my Infiniti?

Regular maintenance, inspecting transmission components for wear, and addressing Check Engine Lights promptly can help prevent recurrence.

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