Engine-CodesLexus – P1607 Lexus

P1607 Lexus Code - Cruise Control Input Processor

Quick Answer

The P1607 diagnostic trouble code (DTC) in a Lexus vehicle refers to an issue with the cruise control input processor. Common causes include Faulty cruise control input processor, Wiring or connection issues in the cruise control system, Malfunctioning cruise control switch. 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
P1607 Lexus indicates Cruise Control Input Processor.
Common causes
Common causes include Faulty cruise control input processor, Wiring or connection issues in the cruise control system, Malfunctioning cruise control switch.
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.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1607 Lexus Description

The P1607 diagnostic trouble code (DTC) in a Lexus vehicle refers to an issue with the cruise control input processor. This code indicates that there is a malfunction in the system responsible for processing input signals from the cruise control switch. The cruise control input processor plays a crucial role in managing the vehicle's cruise control system. When this component fails or malfunctions, it can lead to the cruise control system being inoperative, causing inconvenience and potentially affecting the vehicle's performance.

OBDII Code P1607 Lexus - Cruise Control Input Processor
P1607 Lexus Code - Cruise Control Input Processor

Common Causes of P1607 Lexus

  1. Faulty cruise control input processor
  2. Wiring or connection issues in the cruise control system
  3. Malfunctioning cruise control switch
  4. Electronic control module (ECM) issues
  5. Software glitches in the vehicle's control systems

Symptoms of P1607 Lexus

  1. Inoperative cruise control system
  2. Cruise control system not responding to input commands
  3. Illumination of the cruise control warning light on the instrument panel
  4. Erratic behavior of the cruise control system

How to Fix P1607 Lexus

  1. Diagnose the root cause of the issue by using a diagnostic scanner to retrieve the specific error codes.
  2. Inspect the cruise control input processor, wiring, and connections for any visible damage or loose connections.
  3. Test the cruise control switch to ensure it is functioning correctly.
  4. If the cruise control input processor is found to be faulty, replace it with a new component.
  5. Clear the error codes from the vehicle's ECM and test the cruise control system to verify that the issue has been resolved.

Cost to Fix P1607 Lexus

The cost of repairing the P1607 code in a Lexus vehicle can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. In general, the cost of parts for replacing the cruise control input processor can range from $100 to $300, while labor costs can add an additional $100 to $200. Overall, the total repair cost for addressing the P1607 code typically falls within the range of $200 to $500. However, it is important to note that prices may differ based on the location, vehicle make and model, and the shop's labor rates. It is recommended to obtain quotes from local auto repair shops for a more accurate estimate.

Tech Notes for P1607 Lexus

Check the Engine Control Module (ECM) fuse, if the fuse is OK then try erasing the code first and if the code comes back you may have to reprogram or replace the ECM.

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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 P1607 Lexus Code

1. What are the common symptoms of OBDII code P1607 in a Lexus related to the Cruise Control Input Processor?

- Common symptoms may include the cruise control system not engaging or working intermittently, the cruise control light flashing, and the vehicle experiencing a decrease in fuel efficiency.

2. What are the potential causes of OBDII code P1607 in a Lexus?

- The code P1607 in a Lexus is often caused by a faulty cruise control input processor, damaged wiring or connectors in the cruise control system, or a malfunction in the vehicle's electronic control module.

3. How can I diagnose OBDII code P1607 in my Lexus Cruise Control Input Processor?

- To diagnose code P1607, you can use an OBDII scanner to check for the specific code, inspect the cruise control system wiring and connectors for any damage, and perform a thorough visual inspection of the cruise control components.

4. What are some repair tips for fixing OBDII code P1607 in a Lexus related to the Cruise Control Input Processor?

- Repair tips may include checking and repairing any damaged wiring or connectors in the cruise control system, replacing the cruise control input processor if faulty, and resetting the vehicle's electronic control module to clear the code.

5. Is it safe to continue driving my Lexus with OBDII code P1607 related to the Cruise Control Input Processor?

- It is generally safe to continue driving your vehicle with code P1607, but it is recommended to address the issue promptly to ensure the proper functioning of the cruise control system and prevent any potential fuel efficiency issues.

6. Can OBDII code P1607 in a Lexus be reset without fixing the underlying issue with the Cruise Control Input Processor?

- While you can reset the code temporarily, it is essential to fix the root cause of the issue to prevent the code from reappearing and ensure the proper functioning of the cruise control system in your Lexus.

7. How much does it typically cost to repair OBDII code P1607 in a Lexus related to the Cruise Control Input Processor?

- The cost of repairing code P1607 can vary depending on the specific cause of the issue, but it may involve replacing the cruise control input processor, repairing damaged wiring, or addressing any other underlying problems in the system.

8. Are there any DIY fixes for addressing OBDII code P1607 in a Lexus Cruise Control Input Processor?

- DIY fixes may include checking and repairing simple wiring issues, cleaning connectors, and resetting the electronic control module. However, more complex repairs may require professional assistance.

9. How long does it take to repair OBDII code P1607 in a Lexus related to the Cruise Control Input Processor?

- The repair time for code P1607 can vary based on the specific cause of the issue and the complexity of the repair needed. Simple fixes may take a few hours, while more involved repairs could take longer.

10. Can a Lexus dealership or mechanic help diagnose and repair OBDII code P1607 related to the Cruise Control Input Processor?

- Yes, a Lexus dealership or qualified mechanic can diagnose and repair code P1607 by using specialized diagnostic tools, expertise in Lexus vehicles, and access to genuine replacement parts if needed.

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