AutoCodes – Generic – P167A

P167A Code - Calibration Mismatch

Quick Answer

During the initial ignition on, the Transmission Control Module (TCM) receives the calibrated data from the EEPROM assembly inside the transmission and stores this information in the EEPROM of the TCM. Common causes include Transmission Control Module (TCM) Relearn Procedure Not Performed. 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: P167A indicates Calibration Mismatch.
Common causes: Common causes include Transmission Control Module (TCM) Relearn Procedure Not Performed.
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 10,410

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 Jan 06, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P167A Description

During the initial ignition on, the Transmission Control Module (TCM) receives the calibrated data from the EEPROM assembly inside the transmission and stores this information in the EEPROM of the TCM. At every ignition on, the TCM compares the stored data in the EEPROM to the transmitted data from the EEPROM in the transmission. If the calibration data does not match the DTC will set and the MIL will illuminate after one failure.

OBDII Code P167A - Calibration Mismatch - AutoCodes.com — P167A Code - Calibration Mismatch

What does this mean?

What are the Possible Causes of the DTC P167A?

Transmission Control Module (TCM) Relearn Procedure Not Performed

How to Fix the DTC P167A?

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 P167A 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 P167A code?

Need more information on how to fix the P167A code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P167A code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P167A Chevrolet — Control Module HO2S 1 System Performance
P167A Chrysler — Calibration Mismatch
P167A Dodge — Calibration Mismatch
P167A Jeep — Calibration Mismatch
P167A RAM — Calibration Mismatch

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 P167A Code

1. What are the common symptoms of OBDII code P167A (Calibration Mismatch)?

- Common symptoms include rough idling, poor engine performance, and decreased fuel efficiency.

2. What can cause the OBDII code P167A (Calibration Mismatch) to trigger?

- The code can be triggered by a mismatch between the calibration of different engine control modules in the vehicle.

3. How serious is the OBDII code P167A (Calibration Mismatch)?

- While the code may not cause immediate harm, it can lead to long-term engine performance issues if left unresolved.

4. Can I continue driving with the OBDII code P167A (Calibration Mismatch) present?

- It is not recommended to drive with this code present, as it can affect engine performance and fuel efficiency.

5. How can I diagnose the OBDII code P167A (Calibration Mismatch)?

- Diagnosing the code typically involves using an OBDII scanner to read the code and checking for any related engine control module issues.

6. What are some possible repair tips for fixing the OBDII code P167A (Calibration Mismatch)?

- Repair tips may include reprogramming or updating the engine control modules to ensure they are calibrated correctly.

7. Can I fix the OBDII code P167A (Calibration Mismatch) myself?

- Depending on your skill level and access to tools, you may be able to address the issue yourself by following repair guides or seeking professional help.

8. Will resetting the OBDII code P167A (Calibration Mismatch) make it go away permanently?

- Resetting the code without addressing the underlying calibration mismatch may only temporarily clear the code, with it likely to return if the issue persists.

9. Are there any recalls related to the OBDII code P167A (Calibration Mismatch)?

- It is advisable to check with your vehicle manufacturer or authorized dealer to see if there are any recalls related to this specific code.

10. How can I prevent the OBDII code P167A (Calibration Mismatch) from occurring in the future?

- Regularly maintaining and servicing your vehicle, including updating software and calibrations as recommended by the manufacturer, can help prevent this issue.