AutoCodes – Hummer – P0716 Hummer

P0716 Hummer Code - Transmission Input Speed Sensor Performance

Quick Answer

The Input Speed Sensor detects the primary pulley revolution speed and sends a signal to the Transmission. Common causes include Faulty Transmission Input Speed Sensor, Transmission Input Speed Sensor harness is open or shorted, Transmission Input 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: P0716 Hummer indicates Transmission Input Speed Sensor Performance.
Common causes: Common causes include Faulty Transmission Input Speed Sensor, Transmission Input Speed Sensor harness is open or shorted, Transmission Input 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.

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Code Popularity 7,940

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 Jul 29, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0716 Hummer Description

The Input Speed Sensor detects the primary pulley revolution speed and sends a signal to the Transmission. The Input Speed Sensor (ISS), also known as the transmission turbine speed sensor, is a hall-effect type sensor. The ISS mounts to the control valve upper body assembly and connects to the control solenoid (w/body and Transmission Control Module (TCM)) valve assembly through a wire harness and connector. The sensor faces the 1-2-3-4 and 3-5-R clutch housing machined teeth surface. The sensor receives 8.3-9.3 volts on the Input/Output Speed Sensor (ISS/OSS) supply voltage circuit from the Transmission Control Module (TCM). As the 1-2-3-4 and 3-5-R clutch housing rotates, the sensor produces a signal frequency based on the machined surface of the 1-2-3-4 and 3-5-R clutch housing. This signal is transmitted through the ISS signal circuit to the control solenoid (w/body and TCM) valve assembly. The control solenoid (w/body and TCM) valve assembly uses the ISS signal to determine line pressure, transmission shift patterns, Torque Converter Clutch (TCC) slip speed, and gear ratio. The Diagnostic Trouble Code (DTC) will be set when the TCM detects an unrealistic change in turbine speed.

OBDII Code P0716 Hummer - Transmission Input Speed Sensor Performance - AutoCodes.com — P0716 Hummer Code - Transmission Input Speed Sensor Performance

What does this mean?

What are the Possible Causes of the DTC P0716 Hummer?

Faulty Transmission Input Speed Sensor
Transmission Input Speed Sensor harness is open or shorted
Transmission Input Speed Sensor circuit poor electrical connection
Faulty Control Solenoid Valve Assembly

How to Fix the DTC P0716 Hummer?

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 P0716 Hummer 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 P0716 Hummer Code

1. What are common symptoms of OBDII code P0716 in a Hummer related to the Transmission Input Speed Sensor?

The common symptoms include erratic shifting, transmission slipping, and the Check Engine light illuminating.

2. What are the possible causes of OBDII code P0716 in a Hummer?

The code P0716 in a Hummer is typically caused by a faulty transmission input speed sensor, damaged wiring or connectors, or issues with the transmission control module.

3. How can I diagnose the OBDII code P0716 in my Hummer?

To diagnose the code P0716, you can use a diagnostic scanner to retrieve the code, inspect the wiring and connectors for any damage, and test the transmission input speed sensor for proper function.

4. Can I continue driving my Hummer with OBDII code P0716?

It is not recommended to continue driving your Hummer with the code P0716 as it can lead to further damage to the transmission. It is best to address the issue promptly.

5. How can I repair OBDII code P0716 in my Hummer?

Repairing the code P0716 involves replacing the faulty transmission input speed sensor, repairing any damaged wiring or connectors, and clearing the code with a diagnostic scanner.

6. Are there any DIY tips for fixing OBDII code P0716 in a Hummer?

While some may attempt to replace the transmission input speed sensor themselves, it is recommended to have a professional mechanic diagnose and repair the issue to ensure proper installation and functionality.

7. How much does it cost to fix OBDII code P0716 in a Hummer?

The cost of fixing the code P0716 in a Hummer can vary depending on the extent of the issue, but it typically ranges from $200 to $500, including parts and labor.

8. Can a faulty transmission input speed sensor cause other transmission problems in a Hummer?

Yes, a faulty transmission input speed sensor can cause other transmission issues such as harsh shifting, delayed shifting, and even transmission failure if not addressed promptly.

9. Is it common for the OBDII code P0716 to recur in a Hummer after repair?

If the root cause of the code P0716, such as a faulty transmission input speed sensor, is not properly addressed during repair, it is possible for the code to recur in a Hummer.

10. How long does it take to repair OBDII code P0716 in a Hummer?

The repair time for the code P0716 in a Hummer can vary depending on the mechanic's experience and workload, but it typically takes around 1-2 hours to diagnose and replace the transmission input speed sensor.