AutoCodes – Generic – C1459

C1459 Code - Adaptive Mode Switch Circuit Failure

Quick Answer

The Anti-Lock Brake System (ABS) Actuator And Electric Unit (Control Unit) monitors the Adaptive Mode Switch. Common causes include Faulty Adaptive Mode Switch, Adaptive Mode Switch harness is open or shorted, Adaptive Mode 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: C1459 indicates Adaptive Mode Switch Circuit Failure.
Common causes: Common causes include Faulty Adaptive Mode Switch, Adaptive Mode Switch harness is open or shorted, Adaptive Mode 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 5,884

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 Oct 05, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1459 Description

The Anti-Lock Brake System (ABS) Actuator And Electric Unit (Control Unit) monitors the Adaptive Mode Switch. The ABS Actuator And Electric Unit sets the OBDII code when the Adaptive Mode Switch is not to factory specifications.

OBDII Code C1459 - Adaptive Mode Switch Circuit Failure - AutoCodes.com — C1459 Code - Adaptive Mode Switch Circuit Failure

What does this mean?

What are the Possible Causes of the DTC C1459?

Faulty Adaptive Mode Switch
Adaptive Mode Switch harness is open or shorted
Adaptive Mode Switch circuit poor electrical connection

How to Fix the DTC C1459?

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 C1459 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 C1459 code?

Need more information on how to fix the C1459 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1459 code diagnosed by a professional: Find a repair shop in your area

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 C1459 Code

1. What are the common symptoms of OBDII code C1459 (Adaptive Mode Switch Circuit Failure)?

- Common symptoms include rough idling, engine stalling, decreased fuel efficiency, and difficulty shifting gears.

2. What can cause the OBDII code C1459 to trigger?

- The code C1459 can be triggered by a faulty adaptive mode switch, damaged wiring or connectors, or a problem with the transmission control module.

3. How can I diagnose the cause of the Adaptive Mode Switch Circuit Failure (C1459)?

- Diagnose the issue by inspecting the adaptive mode switch, checking the wiring and connectors for damage, and using a scan tool to read the code and monitor related sensor data.

4. Can I drive my vehicle with the OBDII code C1459 (Adaptive Mode Switch Circuit Failure) present?

- It is not recommended to drive with the code C1459 present, as it can lead to further damage to the transmission or other components.

5. How do I repair the Adaptive Mode Switch Circuit Failure (C1459)?

- Repair options may include replacing the adaptive mode switch, repairing damaged wiring or connectors, or recalibrating the transmission control module.

6. Is it possible to reset the OBDII code C1459 (Adaptive Mode Switch Circuit Failure) without repairs?

- While clearing the code may temporarily turn off the check engine light, the underlying issue causing the code will persist until properly diagnosed and repaired.

7. Can a DIY enthusiast fix the OBDII code C1459 (Adaptive Mode Switch Circuit Failure)?

- Depending on the individual's skill level and access to tools, a DIY enthusiast may be able to diagnose and replace the adaptive mode switch or repair wiring issues causing the code.

8. How much does it cost to repair the OBDII code C1459 (Adaptive Mode Switch Circuit Failure) at a mechanic?

- The cost of repairing the code C1459 can vary depending on the cause of the issue, but it may range from $200 to $500 at a mechanic's shop.

9. Will the OBDII code C1459 (Adaptive Mode Switch Circuit Failure) affect my vehicle's performance?

- Yes, the code C1459 can impact your vehicle's performance by causing drivability issues, transmission problems, and potentially leading to further mechanical problems if left unresolved.

10. How long does it typically take to repair the OBDII code C1459 (Adaptive Mode Switch Circuit Failure)?

- The repair time for the code C1459 can vary based on the exact cause of the issue, but it may take a few hours to a day for a mechanic to diagnose and fix the problem.