AutoCodes – Cadillac – B172E Cadillac

B172E Cadillac Code - Driver Seat Cushion Left Rear Haptic Movement

Quick Answer

The safety alert seat provides a vibration in the driver’s seat bottom cushion to alert the driver of a number of concerns. Common causes include Faulty Driver Seat Cushion Left Rear Haptic Movement Motor, Driver Seat Cushion Left Rear Haptic Movement Motor harness is open or shorted, Driver Seat Cushion Left Rear Haptic Movement Motor 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: B172E Cadillac indicates Driver Seat Cushion Left Rear Haptic Movement.
Common causes: Common causes include Faulty Driver Seat Cushion Left Rear Haptic Movement Motor, Driver Seat Cushion Left Rear Haptic Movement Motor harness is open or shorted, Driver Seat Cushion Left Rear Haptic Movement Motor 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 435

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Apr 21, 2023

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code B172E Cadillac Description

The safety alert seat provides a vibration in the driver’s seat bottom cushion to alert the driver of a number of concerns. Two seat haptic movement motors are utilized to create the vibration and are located on the left and right sides of the seat cushion. Utilizing two motors allows the vibration to be localized to the left or right side of the seat, depending on the side of the vehicle generating the alert, or to vibrate both simultaneously.

The Seat Memory Control Module receives serial data messages from other modules and provides voltage to control the seat haptic movement motors. The Seat Memory Control Module will pulse the left, right, or both motors with the number of pulses requested over serial data. The Seat Memory Control Module monitors the control circuits for open, short to ground, and short to voltage conditions and will set Diagnostic Trouble Code (DTC) if a circuit fault is detected.

The seat haptic movement motor is DC motor located in the driver’s seat bottom cushion. Two seat haptic movement motors are used in the seat bottom cushion, positioned on the left and right side. An offset weight is attached to the motor. When activated, the spinning offset weight creates a vibration felt by the driver through the seat cushion.

Each seat haptic movement motor receives a constant chassis ground. The motor is controlled by the Seat Memory Control Module providing voltage through a dedicated control circuit. When an alert is required, the Seat Memory Control Module will apply voltage, activating the seat haptic movement motor.

OBDII Code B172E Cadillac - Driver Seat Cushion Left Rear Haptic Movement - AutoCodes.com — B172E Cadillac Code - Driver Seat Cushion Left Rear Haptic Movement

What does this mean?

What are the Possible Causes of the DTC B172E Cadillac?

Faulty Driver Seat Cushion Left Rear Haptic Movement Motor
Driver Seat Cushion Left Rear Haptic Movement Motor harness is open or shorted
Driver Seat Cushion Left Rear Haptic Movement Motor circuit poor electrical connection
Faulty Seat Memory Control Module

How to Fix the DTC B172E Cadillac?

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

Buy the Haptic Motor: https://amzn.to/3H4LF0L

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B172E Cadillac 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 B172E Cadillac Code

1. What are the common symptoms of OBDII code B172E in a Cadillac related to the driver seat cushion left rear haptic movement?

- The common symptoms include the driver seat cushion left rear haptic movement not functioning or operating erratically.

2. What typically causes OBDII code B172E in a Cadillac for the driver seat cushion left rear haptic movement issue?

- The code is often triggered by a faulty haptic motor or sensor in the driver seat cushion.

3. How can I diagnose the OBDII code B172E in a Cadillac for the driver seat cushion left rear haptic movement problem?

- To diagnose this issue, you can use a diagnostic scanner to read the fault codes and inspect the haptic motor and sensor in the driver seat cushion.

4. Are there any DIY repair tips for fixing the OBDII code B172E related to the driver seat cushion left rear haptic movement in a Cadillac?

- DIY repair tips include checking the connections to the haptic motor and sensor, ensuring they are secure, and replacing the faulty components if necessary.

5. Can the OBDII code B172E in a Cadillac for the driver seat cushion left rear haptic movement problem be fixed without professional help?

- While some DIY enthusiasts may be able to address this issue, it is recommended to seek professional assistance to properly diagnose and repair the haptic movement problem.

6. Is it safe to continue driving a Cadillac with the OBDII code B172E related to the driver seat cushion left rear haptic movement issue?

- It is generally safe to continue driving, but the malfunctioning haptic movement feature may affect the overall comfort and convenience of the driver's seat.

7. How much does it typically cost to repair the OBDII code B172E in a Cadillac for the driver seat cushion left rear haptic movement issue?

- The cost of repair can vary depending on the extent of the problem, but it may involve replacing the haptic motor or sensor, which could range from $100 to $300 or more.

8. Will resetting the OBDII code B172E in a Cadillac solve the driver seat cushion left rear haptic movement problem?

- Resetting the code may temporarily clear the error, but it is important to address the underlying issue with the haptic motor or sensor to ensure the problem is fully resolved.

9. Are there any known recalls or technical service bulletins related to the OBDII code B172E in a Cadillac for the driver seat cushion left rear haptic movement issue?

- It is advisable to check with the manufacturer or authorized Cadillac service center for any recalls or technical service bulletins related to this specific problem.

10. How can I prevent the OBDII code B172E from reoccurring in my Cadillac after fixing the driver seat cushion left rear haptic movement issue?

- Regularly inspecting and maintaining the haptic motor and sensor in the driver seat cushion can help prevent the recurrence of the OBDII code B172E related to the haptic movement problem.