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AutoCodes – Toyota – P1607 Toyota

P1607 Toyota 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 Toyota 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.
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Code Popularity 6,906
How popular is this code, among other codes? Low
What is this?
Table of contents Created and updated by William Orellana on Sep 14, 2022
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Code P1607 Toyota 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 Toyota - Cruise Control Input Processor - AutoCodes.com
P1607 Toyota Code - Cruise Control Input Processor
What does this mean?

What are the Possible Causes of the DTC P1607 Toyota?

  • 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 Toyota?

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

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1607 Toyota 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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Information for Specific Toyota Models

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.

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