AutoCodes – Generic – P176B

P176B Code - Intermediate Speed Sensor Circuit Performance

Quick Answer

The sensor contains a hall-effect sensor and additional electronics that process the signal. Common causes include Faulty Transmission Intermediate Shaft Speed Sensor, Transmission Intermediate Shaft Speed Sensor harness is open or shorted, Transmission Intermediate Shaft Speed Sensor 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: P176B indicates Intermediate Speed Sensor Circuit Performance.
Common causes: Common causes include Faulty Transmission Intermediate Shaft Speed Sensor, Transmission Intermediate Shaft Speed Sensor harness is open or shorted, Transmission Intermediate Shaft Speed Sensor 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 6,688

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 29, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P176B Description

The sensor contains a hall-effect sensor and additional electronics that process the signal. It detects the change of the strength of the magnetic field caused by the reluctor ring. When the strength changes, the sensor changes the amount of current it consumes. This results in a square wave signal of the current, while the voltage stays constant. The control module detects the frequency in which the current changes, which is proportional to the rotational speed.
The sensor is an input to the control module. The input signal is used to determine the rotational speed of the component, the Diagnostic Trouble Code (DTC) will be set when the reaction Carrier Assembly Transmission Intermediate Speed Sensor is greater than 60 RPM on gears 1, 2.

OBDII Code P176B - Intermediate Speed Sensor Circuit Performance - AutoCodes.com — P176B Code - Intermediate Speed Sensor Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P176B?

Faulty Transmission Intermediate Shaft Speed Sensor
Transmission Intermediate Shaft Speed Sensor harness is open or shorted
Transmission Intermediate Shaft Speed Sensor circuit poor electrical connection
Faulty Transmission Control Module

How to Fix the DTC P176B?

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 P176B 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 P176B code?

Need more information on how to fix the P176B code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P176B code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P176B Buick — Intermediate Speed Sensor Circuit Performance
P176B Cadillac — Intermediate Speed Sensor Circuit Performance
P176B Chevrolet — Intermediate Speed Sensor Circuit Performance
P176B GMC — Intermediate Speed Sensor Circuit 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 P176B Code

1. What does OBDII code P176B mean?

P176B indicates a performance issue in the intermediate speed sensor circuit, which monitors the rotational speed of the transmission's internal components.

2. What are the symptoms of code P176B?

Symptoms may include erratic shifting, transmission slipping, poor acceleration, or the illumination of the check engine light.

3. What causes the P176B code?

Common causes include a faulty intermediate speed sensor, damaged wiring or connectors in the sensor circuit, or issues with the transmission control module (TCM).

4. Can I drive with a P176B code?

Driving with this code is not recommended, as it can lead to further transmission damage and unsafe driving conditions due to erratic shifting.

5. How do I diagnose code P176B?

Start by inspecting the intermediate speed sensor and its wiring for damage or corrosion. Use a multimeter to test the sensorâ€™s resistance and ensure proper voltage supply.

6. How do I fix the P176B code?

Repairs may involve replacing the faulty intermediate speed sensor, repairing damaged wiring or connectors, or reprogramming or replacing the TCM if necessary.

7. How much does it cost to repair a P176B code?

Repairs typically range from $150 to $400, depending on whether the issue lies with the sensor, wiring, or TCM.

8. Can a low transmission fluid level cause P176B?

Low transmission fluid usually does not cause P176B directly, but it can contribute to poor sensor performance or transmission problems.

9. Will clearing the code fix the problem?

Clearing the code will turn off the check engine light temporarily, but if the underlying issue is not resolved, the code will return.

10. Do I need a professional to fix the P176B code?

While experienced DIYers can attempt basic inspections and repairs, complex diagnostics involving the TCM or transmission may require a professional mechanic.