AutoCodes – Chevrolet – P0826 Chevrolet

P0826 Chevrolet Code - Up And Down Shift Switch Circuit

Quick Answer

The Driver Shift Request (DSR) allows the driver to select the desired range of gears for current driving conditions. Common causes include Faulty Transmission Shift Lever, Transmission Shift Lever harness is open or shorted, Transmission Shift Lever 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: P0826 Chevrolet indicates Up And Down Shift Switch Circuit.
Common causes: Common causes include Faulty Transmission Shift Lever, Transmission Shift Lever harness is open or shorted, Transmission Shift Lever 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 13,008

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 02, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0826 Chevrolet Description

The Driver Shift Request (DSR) allows the driver to select the desired range of gears for current driving conditions. The DSR shift system is activated when the gear selector is in the manual position. The DSR system is deactivated in all other range positions. Pressing the plus (+) switch once will command the Body Control Module (BCM) to signal the Transmission Control Module (TCM) to upshift to the next high gear. Pressing the minus (−) switch once will command the BCM to signal the TCM to downshift to the next lowest or previous gear. The TCM will not allow a downshift if the transmission is compromised by over-speeding. The automatic transmission manual shift switch is comprised of three different resistor values in series and two switches. The BCM supplies a 12-volt circuit to the automatic transmission manual shift switch. The signal circuit varies the voltage back to the body control module depending on which switch is depressed. The Diagnostic Trouble Code (DTC) will be set when the BCM detects an invalid voltage on the TAP up/down signal circuit for 1 minute.

OBDII Code P0826 Chevrolet - Up And Down Shift Switch Circuit - AutoCodes.com — P0826 Chevrolet Code - Up And Down Shift Switch Circuit

What does this mean?

What are the Possible Causes of the DTC P0826 Chevrolet?

Faulty Transmission Shift Lever
Transmission Shift Lever harness is open or shorted
Transmission Shift Lever circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC P0826 Chevrolet?

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 P0826 Chevrolet 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 P0826 Chevrolet code?

Need more information on how to fix the P0826 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0826 Chevrolet code diagnosed by a professional: Find a repair shop in your area

Information for Specific Chevrolet Models

P0826 2014 Chevrolet Silverado — Up And Down Shift Switch Circuit
P0826 2015 Chevrolet Silverado — Up And Down Shift Switch Circuit
P0826 2016 Chevrolet Silverado — Up And Down Shift Switch Circuit
P0826 2017 Chevrolet Silverado — Up And Down Shift Switch Circuit
P0826 2018 Chevrolet Silverado — Up And Down Shift Switch Circuit

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 P0826 Chevrolet Code

1. What does the OBDII code P0826 mean on a Chevrolet?

P0826 indicates a problem with the up and down shift switch circuit, which is responsible for sending signals to the transmission control module for manual gear selection.

2. What are the common symptoms of code P0826 in a Chevrolet?

Symptoms include the inability to shift gears manually, the transmission stuck in one gear, the check engine light being illuminated, and potential erratic shifting.

3. What causes the P0826 code in a Chevrolet?

Common causes include a faulty up and down shift switch, damaged wiring or connectors in the circuit, a malfunctioning transmission control module (TCM), or electrical issues such as short circuits or open circuits.

4. Can I still drive my Chevrolet with the P0826 code?

While the vehicle may still be drivable, driving with this code can lead to further transmission issues and should be addressed promptly to avoid additional damage.

5. How do I diagnose the P0826 code on a Chevrolet?

Diagnosis typically involves scanning for related codes, inspecting the up and down shift switch and its wiring, testing the circuit for continuity, and checking the TCM for proper operation.

6. How do I fix the P0826 code on a Chevrolet?

Repairs may include replacing the up and down shift switch, repairing or replacing damaged wiring or connectors, updating the TCM software, or replacing the TCM if necessary.

7. What tools are needed to troubleshoot the P0826 code on a Chevrolet?

Youâ€™ll need an OBDII scanner, a multimeter for electrical testing, and potentially wiring diagrams for your specific Chevrolet model.

8. Is the P0826 code specific to manual or automatic transmissions?

The P0826 code is typically associated with vehicles that have automatic transmissions with a manual shift mode, such as paddle shifters or gear selector buttons.

9. Can a weak battery cause the P0826 code in a Chevrolet?

A weak or failing battery can sometimes cause electrical issues that may trigger transmission-related codes, including P0826, though itâ€™s less common.

10. How much does it cost to repair the P0826 code on a Chevrolet?

Repair costs vary depending on the root cause but can range from $100 for simple wiring repairs to $500 or more if the shift switch or TCM needs replacement.