AutoCodes – Chevrolet – P037B 2016 Chevrolet Silverado

P037B 2016 Chevrolet Silverado Code - Wait To Start Indicator Control Circuit High Voltage

Quick Answer

Ignition voltage is supplied directly to the Wait To Start indicator. Common causes include Faulty Instrument Cluster, Instrument Cluster harness is open or shorted, Instrument Cluster 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: P037B 2016 Chevrolet Silverado indicates Wait To Start Indicator Control Circuit High Voltage.
Common causes: Common causes include Faulty Instrument Cluster, Instrument Cluster harness is open or shorted, Instrument Cluster 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 205

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 Jun 17, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P037B 2016 Chevrolet Silverado Description

Ignition voltage is supplied directly to the Wait To Start indicator. The Engine Control Module (ECM) controls the lamp by grounding the control circuit via an internal switch called a driver. The primary function of the driver is to supply the ground for the component being controlled. Each driver has a fault line which is monitored by the ECM. When the ECM is commanding a component ON, the voltage of the control circuit should be low, near zero volts. When the ECM is commanding the control circuit to a component OFF, the voltage potential of the circuit should be high, near battery voltage. The Diagnostic Trouble Code (DTC) will be set when the ECM detects a short to voltage on the Wait To Start Indicator Control circuit for greater than 1 s.

OBDII Code P037B 2016 Chevrolet Silverado - Wait To Start Indicator Control Circuit High Voltage - AutoCodes.com — P037B 2016 Chevrolet Silverado Code - Wait To Start Indicator Control Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P037B 2016 Chevrolet Silverado?

Faulty Instrument Cluster
Instrument Cluster harness is open or shorted
Instrument Cluster circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P037B 2016 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 P037B 2016 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 P037B 2016 Chevrolet Silverado code?

Need more information on how to fix the P037B 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 P037B 2016 Chevrolet Silverado Code

1. What does the OBDII code P037B mean on a 2016 Chevrolet Silverado?

P037B indicates a problem with the "Wait to Start" indicator control circuit, specifically that the voltage is higher than expected.

2. What are the common symptoms of a P037B code?

Symptoms may include the "Wait to Start" indicator not functioning properly, delayed engine starts, or no noticeable symptoms at all in some cases.

3. What causes the P037B code on a 2016 Chevrolet Silverado?

Common causes include a faulty "Wait to Start" indicator bulb, damaged wiring or connectors in the control circuit, or a malfunctioning engine control module (ECM).

4. How do I diagnose the P037B code?

Start by inspecting the wiring and connectors for damage or corrosion, test the "Wait to Start" indicator bulb, and check for proper voltage readings in the circuit.

5. Can I drive my 2016 Chevrolet Silverado with a P037B code?

While the truck may still be drivable, ignoring the issue could lead to starting difficulties, so itâ€™s best to address the problem promptly.

6. How is the P037B code fixed?

Repairs may include replacing the "Wait to Start" indicator bulb, repairing damaged wiring, or reprogramming or replacing the engine control module (ECM) if necessary.

7. How much does it cost to fix the P037B code?

Repair costs can vary, but replacing a faulty bulb or repairing wiring may cost $50-$200. If the ECM needs replacement, costs can exceed $500.

8. Can a dead battery cause the P037B code?

A dead or weak battery is unlikely to directly cause this code, but electrical issues related to the battery can sometimes affect the circuit.

9. How can I prevent the P037B code from occurring?

Regularly inspect electrical wiring and connections for damage, and ensure the "Wait to Start" indicator bulb is functioning correctly.

10. Do I need a professional mechanic to fix the P037B code?

If you are comfortable working with electrical systems, you may be able to fix it yourself. However, consulting a professional mechanic is recommended for accurate diagnosis and repair.