AutoCodes – Generic – P164C

P164C Code - Internal Control Module Start-Stop Performance

Quick Answer

The Powertrain Control Module (PCM) receives input signals from sensors and other components (switches, relays). Common causes include Reprogram Powertrain Control Module (PCM), Faulty Powertrain Control Module, Powertrain Control Module harness is open or shorted. 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: P164C indicates Internal Control Module Start-Stop Performance.
Common causes: Common causes include Reprogram Powertrain Control Module (PCM), Faulty Powertrain Control Module, Powertrain Control Module harness is open or shorted.
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 21,643

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 Aug 13, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P164C Description

The Powertrain Control Module (PCM) receives input signals from sensors and other components (switches, relays). Based on this information, the Powertrain Control Module generates output signals to control various relays, solenoids, and actuators. The Diagnostic Trouble Code (DTC) sets when an error occurs in the Powertrain Control Module.

OBDII Code P164C - Internal Control Module Start-Stop Performance - AutoCodes.com — P164C Code - Internal Control Module Start-Stop Performance

What does this mean?

What are the Possible Causes of the DTC P164C?

Reprogram Powertrain Control Module (PCM)
Faulty Powertrain Control Module
Powertrain Control Module harness is open or shorted
Powertrain Control Module circuit poor electrical connection

How to Fix the DTC P164C?

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

This Diagnostic Trouble Code (DTC) may be accompanied by other DTCs. Check for other DTCs and diagnose those first. If no DTCs are present, continue to follow diagnosis for this DTC.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P164C 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 P164C code?

Need more information on how to fix the P164C code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P164C code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P164C Ford — Internal Control Module Start-Stop Performance
P164C Lincoln — Internal Control Module Start-Stop Performance
P164C Mercury — Internal Control Module Start-Stop Performance

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 P164C Code

1. What are the common symptoms of OBDII code P164C (Internal Control Module Start-Stop Performance)?

- The common symptoms include issues with the start-stop system not functioning properly, engine stalling or hesitation during start or stop, and potential illumination of the check engine light.

2. What are the possible causes of OBDII code P164C?

- The code P164C can be triggered by various issues such as a faulty start-stop system control module, wiring or connector problems, software glitches, or a weak car battery.

3. How is OBDII code P164C diagnosed?

- Diagnosis of code P164C typically involves using an OBDII scanner to retrieve the code, checking the freeze frame data for more information, and performing a thorough inspection of the start-stop system components.

4. Can a weak car battery cause OBDII code P164C to appear?

- Yes, a weak car battery can potentially trigger code P164C as the start-stop system heavily relies on a properly functioning battery to operate efficiently.

5. What are some repair tips for addressing OBDII code P164C?

- Repair tips may include checking and replacing the car battery if needed, inspecting the start-stop system components for any faults, ensuring all wiring and connectors are secure, and updating the control module software if applicable.

6. Is it safe to continue driving with OBDII code P164C present?

- It is generally not recommended to ignore OBDII codes like P164C, as they can indicate underlying issues that may affect the vehicle's performance and safety. It's best to address the problem promptly.

7. Can I reset OBDII code P164C on my own?

- While you can clear the code using an OBDII scanner, it is crucial to investigate and resolve the root cause of the issue to prevent the code from reappearing.

8. Is OBDII code P164C specific to certain car makes and models?

- OBDII code P164C can appear in various car makes and models that are equipped with a start-stop system, but the specific diagnostic and repair procedures may vary.

9. Will OBDII code P164C cause any drivability issues?

- Depending on the severity of the problem, OBDII code P164C can potentially cause drivability issues such as engine stalling, rough idling, or difficulty starting the vehicle.

10. How much does it typically cost to repair OBDII code P164C?

- The cost of repairing OBDII code P164C can vary depending on the underlying cause, parts needed for replacement, labor costs, and whether the repair is done at a dealership or an independent mechanic.