AutoCodes – Chevrolet – P17B2 2018 Chevrolet Silverado

P17B2 2018 Chevrolet Silverado Code - Transmission Range Control Module System High Voltage

Quick Answer

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. Common causes include Faulty Transmission Range Control Module, Transmission Range Control Module harness is open or shorted, Transmission Range Control Module 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: P17B2 2018 Chevrolet Silverado indicates Transmission Range Control Module System High Voltage.
Common causes: Common causes include Faulty Transmission Range Control Module, Transmission Range Control Module harness is open or shorted, Transmission Range Control Module 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 390

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 04, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P17B2 2018 Chevrolet Silverado Description

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. The Diagnostic Trouble Code (DTC) will be set when the Transmission Range Control Module detects a system voltage below or above a threshold.

OBDII Code P17B2 2018 Chevrolet Silverado - Transmission Range Control Module System High Voltage - AutoCodes.com — P17B2 2018 Chevrolet Silverado Code - Transmission Range Control Module System High Voltage

What does this mean?

What are the Possible Causes of the DTC P17B2 2018 Chevrolet Silverado?

Faulty Transmission Range Control Module
Transmission Range Control Module harness is open or shorted
Transmission Range Control Module circuit poor electrical connection

How to Fix the DTC P17B2 2018 Chevrolet Silverado?

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 P17B2 2018 Chevrolet Silverado 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 P17B2 2018 Chevrolet Silverado code?

Need more information on how to fix the P17B2 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P17B2 2018 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 P17B2 2018 Chevrolet Silverado Code

What does the OBDII code P17B2 mean for a 2018 Chevrolet Silverado?

The P17B2 code indicates "Transmission Range Control Module System High Voltage," which means the transmission range control module is detecting an abnormally high voltage in its circuit.

What are common symptoms of the P17B2 code in a 2018 Chevrolet Silverado?

Symptoms may include difficulty shifting gears, the vehicle being stuck in one gear, a check engine light, and erratic or delayed shifting.

What causes the P17B2 code to appear in a 2018 Chevrolet Silverado?

Common causes include a faulty transmission range control module, wiring issues like short circuits or damaged insulation, or a malfunctioning transmission control module (TCM).

Can I drive my 2018 Chevrolet Silverado with the P17B2 code active?

Driving with this code is not recommended as it may lead to further damage to the transmission or unsafe driving conditions due to shifting issues.

How is the P17B2 code diagnosed in a 2018 Chevrolet Silverado?

A mechanic will use an OBDII scanner to confirm the code, inspect the transmission range control module and wiring for damage, and test voltage levels to identify the issue.

What repairs are commonly needed to fix the P17B2 code?

Repairs may include replacing the transmission range control module, repairing or replacing damaged wiring, or reprogramming the transmission control module.

How much does it cost to fix the P17B2 code on a 2018 Chevrolet Silverado?

Repair costs vary but can range from $200 to $1,000, depending on whether the issue is a simple wiring repair or requires replacing the transmission range control module.

Can a dead battery cause the P17B2 code on a 2018 Chevrolet Silverado?

While unlikely, a weak or dead battery could cause electrical irregularities that might contribute to triggering the code. Testing the battery and charging system is advised.

Is the P17B2 code a common problem in 2018 Chevrolet Silverado trucks?

This code is not extremely common but can occur, especially if there are electrical issues or wear and tear in the transmission system.

Will clearing the P17B2 code with a scanner fix the problem?

Clearing the code without addressing the underlying issue may temporarily turn off the check engine light, but the problem will likely return until proper repairs are made.