AutoCodes – Chevrolet – P1915 2014 Chevrolet Silverado

P1915 2014 Chevrolet Silverado Code - Internal Mode Switch Start/Wrong Range

Quick Answer

The park/neutral position switch and the 5 Hall Effect switches are internal to and part of the internal mode switch assembly. Common causes include Faulty Transmission Internal Mode Switch, Transmission Internal Mode Switch harness is open or shorted, Transmission Internal Mode Switch 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: P1915 2014 Chevrolet Silverado indicates Internal Mode Switch Start/Wrong Range.
Common causes: Common causes include Faulty Transmission Internal Mode Switch, Transmission Internal Mode Switch harness is open or shorted, Transmission Internal Mode Switch 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 700

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 Mar 23, 2024

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 P1915 2014 Chevrolet Silverado Description

The park/neutral position switch and the 5 Hall Effect switches are internal to and part of the internal mode switch assembly. The park/neutral switch indicates to the engine control module (ECM) if the vehicle is in park/neutral or in a drive gear range. With the ignition ON, the ECM provides 12 V on the park/neutral signal to the park/neutral position switch. A separate ground wire from the park/neutral position switch to the Transmission Control Module (TCM) completes the path to ground. When the gear shift lever in park or neutral, the switch closes and drops the voltage on the signal circuit to 0 V. In this state the engine will start and run. In reverse or drive range the park/neutral switch opens, 12 V is then present on the signal circuit which will inhibit engine starting. The Diagnostic Trouble Code (DTC) will be set when the internal mode switch Park/Neutral circuit does indicate Park or Neutral during engine start.

OBDII Code P1915 2014 Chevrolet Silverado - Internal Mode Switch Start/Wrong Range - AutoCodes.com — P1915 2014 Chevrolet Silverado Code - Internal Mode Switch Start/Wrong Range

What does this mean?

What are the Possible Causes of the DTC P1915 2014 Chevrolet Silverado?

Faulty Transmission Internal Mode Switch
Transmission Internal Mode Switch harness is open or shorted
Transmission Internal Mode Switch circuit poor electrical connection
Faulty Transmission Control Module (TCM)

How to Fix the DTC P1915 2014 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 P1915 2014 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 P1915 2014 Chevrolet Silverado code?

Need more information on how to fix the P1915 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1915 2014 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 P1915 2014 Chevrolet Silverado Code

1. What does the OBDII code P1915 mean on a 2014 Chevrolet Silverado?

The code P1915 indicates an issue with the Internal Mode Switch (IMS) in the transmission, specifically a mismatch or incorrect range detection during startup.

2. What are the symptoms of a P1915 code in a 2014 Chevrolet Silverado?

Common symptoms include difficulty starting the engine, the transmission stuck in a single gear, erratic shifting, or an illuminated check engine light.

3. What causes the P1915 code on a 2014 Chevrolet Silverado?

This code is often caused by a faulty Internal Mode Switch, damaged wiring or connectors in the transmission system, or a malfunctioning Transmission Control Module (TCM).

4. Can a P1915 code cause transmission issues in a 2014 Chevrolet Silverado?

Yes, it can cause shifting problems, prevent proper gear selection, or even leave the transmission in limp mode.

5. How is a P1915 code diagnosed in a 2014 Chevrolet Silverado?

A mechanic will use a scan tool to confirm the code, inspect the IMS and related wiring for damage, and perform tests on the TCM to ensure proper functionality.

6. Can I drive my 2014 Chevrolet Silverado with a P1915 code?

Driving with this code is not recommended as it may lead to unsafe shifting, further transmission damage, or reduced drivability.

7. How do you fix a P1915 code on a 2014 Chevrolet Silverado?

Repairs may include replacing the Internal Mode Switch, repairing damaged wiring or connectors, or reprogramming or replacing the TCM if necessary.

8. How much does it cost to repair a P1915 code on a 2014 Chevrolet Silverado?

The cost varies depending on the specific repair, but replacing the Internal Mode Switch typically costs between $300 and $600, including parts and labor.

9. Can a weak battery cause a P1915 code on a 2014 Chevrolet Silverado?

A weak battery can cause electrical issues that may trigger transmission-related codes, but it is not a common cause for P1915.

10. Is the Internal Mode Switch the same as the neutral safety switch?

The Internal Mode Switch performs similar functions to a neutral safety switch but is located inside the transmission and provides additional gear position data to the TCM.