AutoCodes – Lexus – P1607 Lexus

P1607 Lexus Code - Cruise Control Input Processor

Quick Answer

The Engine Control Module (ECM) continuously monitors its main and sub-CPUs for cruise control. Common causes include Faulty Engine Control Module (ECM), Engine Control Module harness is open or shorted, Engine Control Module 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
P1607 Lexus indicates Cruise Control Input Processor.
Common causes
Common causes include Faulty Engine Control Module (ECM), Engine Control Module harness is open or shorted, Engine Control Module 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 1,164
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 14, 2022
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Code P1607 Lexus Description

The Engine Control Module (ECM) continuously monitors its main and sub-CPUs for cruise control. This self-check ensures that the ECM is functioning correctly. If outputs from the CPUs differ and deviate from the standards, the ECM will illuminate the MIL and set the Diagnostic Trouble Code (DTC) immediately.
OBDII Code P1607 Lexus - Cruise Control Input Processor - AutoCodes.com
P1607 Lexus Code - Cruise Control Input Processor

What are the Possible Causes of the DTC P1607 Lexus?

  • Faulty Engine Control Module (ECM)
  • Engine Control Module harness is open or shorted
  • Engine Control Module circuit poor electrical connection

How to Fix the DTC P1607 Lexus?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1607 Lexus 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.

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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