AutoCodes – Scion – C1591 Scion

C1591 Scion Code - Actuator Neutral Position Calibration Undone

Quick Answer

If the Steering Control ECU or steering actuator is replaced, or if the tie-rod ends are adjusted, Variable Gear Ratio Steering (VGRS) system calibration is required. Common causes include Actuator Neutral Position Calibration. 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: C1591 Scion indicates Actuator Neutral Position Calibration Undone.
Common causes: Common causes include Actuator Neutral Position Calibration.
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 744

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 Nov 05, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code C1591 Scion Description

If the Steering Control ECU or steering actuator is replaced, or if the tie-rod ends are adjusted, Variable Gear Ratio Steering (VGRS) system calibration is required. If the Steering Control ECU detects that steering angle adjustment is incomplete, it will store the Diagnostic Trouble Code (DTC) C1591.

OBDII Code C1591 Scion - Actuator Neutral Position Calibration Undone - AutoCodes.com — C1591 Scion Code - Actuator Neutral Position Calibration Undone

What does this mean?

What are the Possible Causes of the DTC C1591 Scion?

Actuator Neutral Position Calibration

How to Fix the DTC C1591 Scion?

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 does this mean?

Code Tech Notes

There is no malfunction if this DTC is not output again after performing VGRS system calibration.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1591 Scion 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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Need Help with the 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 C1591 Scion Code

1. What are the common symptoms of OBDII code C1591 on a Scion related to Actuator Neutral Position Calibration Undone?

- Common symptoms include poor shifting performance, rough idling, and potentially stalling of the vehicle.

2. What causes the OBDII code C1591 on a Scion indicating Actuator Neutral Position Calibration Undone?

- The code is typically triggered when the actuator neutral position calibration is not set correctly, often due to a faulty sensor or an issue with the actuator itself.

3. How can I diagnose the OBDII code C1591 on my Scion for Actuator Neutral Position Calibration Undone?

- Use a diagnostic scanner to retrieve the code and perform a thorough inspection of the transmission system, including the actuator and related sensors.

4. Can I drive my Scion with the OBDII code C1591 related to Actuator Neutral Position Calibration Undone?

- It is not recommended to drive the vehicle with this code present, as it can lead to further transmission issues and potential safety hazards.

5. How can I reset the OBDII code C1591 on my Scion for Actuator Neutral Position Calibration Undone?

- To reset the code, you will need to address the underlying issue causing the calibration problem and use a diagnostic tool to clear the code from the system.

6. Is it possible to fix the OBDII code C1591 on a Scion related to Actuator Neutral Position Calibration Undone without professional help?

- While some basic troubleshooting steps can be taken, it is recommended to seek professional assistance to properly diagnose and repair the issue.

7. What are the potential repair options for the OBDII code C1591 Scion indicating Actuator Neutral Position Calibration Undone?

- Repair options may include recalibrating the actuator neutral position, replacing faulty sensors or actuators, and ensuring proper transmission fluid levels.

8. Are there any preventative measures to avoid the OBDII code C1591 related to Actuator Neutral Position Calibration Undone on a Scion?

- Regular maintenance of the transmission system, including fluid checks and sensor inspections, can help prevent issues that may trigger this code.

9. How long does it typically take to repair the OBDII code C1591 on a Scion for Actuator Neutral Position Calibration Undone?

- The repair time can vary depending on the specific cause of the calibration issue, but it may take a few hours to a day for professional diagnosis and repair.

10. Can the OBDII code C1591 on a Scion indicating Actuator Neutral Position Calibration Undone cause long-term damage if left unresolved?

- Ignoring this code can lead to further transmission problems and potential damage, so it is important to address it promptly to prevent costly repairs in the future.