AutoCodes – GMC – P0336 2017 GMC Sierra

P0336 2017 GMC Sierra Code - Crankshaft Position Sensor Performance

Quick Answer

The crankshaft position sensor is an internally magnetic biased digital output integrated circuit sensing device. Common causes include Faulty Crankshaft Position Sensor, Crankshaft Position Sensor harness is open or shorted, Crankshaft Position 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: P0336 2017 GMC Sierra indicates Crankshaft Position Sensor Performance.
Common causes: Common causes include Faulty Crankshaft Position Sensor, Crankshaft Position Sensor harness is open or shorted, Crankshaft Position 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 358

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
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Code P0336 2017 GMC Sierra Description

The crankshaft position sensor is an internally magnetic biased digital output integrated circuit sensing device. The sensor detects magnetic flux changes in the teeth and slots of the reluctor wheel on the crankshaft. The reluctor wheel is spaced at 60-tooth spacing, with two missing teeth for the reference gap. The reference gap is used to identify the crankshaft position at each start-up. The crankshaft position sensor produces an ON/OFF DC voltage of varying frequency, with 58 output pulses per crankshaft revolution. The crankshaft position sensor sends a digital signal to the ECM as each tooth on the reluctor wheel rotates past the crankshaft position sensor. The ECM uses each crankshaft position signal pulse to determine the crankshaft speed position. This information is then used to determine the optimum ignition and injection points of the engine. The ECM also uses crankshaft position sensor output information to determine the camshaft's relative position to the crankshaft, control camshaft phasing, and detect cylinder misfire.
The ECM also has a dedicated replicated crankshaft position sensor signal output circuit that may be used as an input signal to other modules for monitoring engine RPM.
The Diagnostic Trouble Code (DTC) will be set when the Crankshaft Position Sensor signal is not detected by the ECM during the first few seconds of engine cranking.

OBDII Code P0336 2017 GMC Sierra - Crankshaft Position Sensor Performance - AutoCodes.com — P0336 2017 GMC Sierra Code - Crankshaft Position Sensor Performance

What does this mean?

What are the Possible Causes of the DTC P0336 2017 GMC Sierra?

Faulty Crankshaft Position Sensor
Crankshaft Position Sensor harness is open or shorted
Crankshaft Position Sensor circuit poor electrical connection
Faulty Engine Control Module (ECM)
Signal plate may be damaged
Dead or weak battery

How to Fix the DTC P0336 2017 GMC Sierra?

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 P0336 2017 GMC Sierra 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 P0336 2017 GMC Sierra code?

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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 P0336 2017 GMC Sierra Code

What does the OBDII code P0336 mean on a 2017 GMC Sierra?

The P0336 code indicates a problem with the crankshaft position sensor circuit, specifically a performance or range issue in the signal sent to the engine control module (ECM).

What are the symptoms of code P0336 in a 2017 GMC Sierra?

Common symptoms include difficulty starting the engine, rough idling, engine stalling, reduced power, poor fuel efficiency, and possible illumination of the check engine light.

What causes the P0336 code to appear on a 2017 GMC Sierra?

Possible causes include a faulty crankshaft position sensor, damaged or corroded wiring, a misaligned reluctor ring, or issues with the ECM.

Can I drive my 2017 GMC Sierra with the P0336 code?

Driving with a P0336 code is not recommended, as it can lead to engine stalling or reduced performance, potentially creating unsafe driving conditions.

How do you diagnose the P0336 code on a 2017 GMC Sierra?

A mechanic will use a scan tool to confirm the code, inspect the crankshaft position sensor and its wiring, check the reluctor ring for damage or misalignment, and verify the ECMâ€™s functionality.

How do you fix the P0336 code on a 2017 GMC Sierra?

Repairs may include replacing the crankshaft position sensor, repairing or replacing damaged wiring, realigning or replacing the reluctor ring, or reprogramming or replacing the ECM if necessary.

What tools are needed to repair the P0336 code on a 2017 GMC Sierra?

Common tools include a diagnostic scan tool, a multimeter for testing electrical circuits, and basic hand tools for sensor replacement.

How much does it cost to fix the P0336 code on a 2017 GMC Sierra?

Repair costs can vary but typically range from $100 to $300, depending on whether the crankshaft sensor, wiring, or reluctor ring needs replacement.

Can a bad battery cause the P0336 code on a 2017 GMC Sierra?

Yes, a weak or failing battery can cause voltage issues that may disrupt the crankshaft sensor's performance, potentially triggering the P0336 code.

How can I prevent the P0336 code in the future on my 2017 GMC Sierra?

Regular maintenance, including inspecting and cleaning electrical connections, ensuring proper alignment of the reluctor ring, and addressing engine issues promptly, can help prevent the P0336 code from recurring.