P037B 2014 GMC Sierra 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 2014 GMC Sierra 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.
Code P037B 2014 GMC Sierra Description
What are the Possible Causes of the DTC P037B 2014 GMC Sierra?
- 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 2014 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 P037B 2014 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.
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Frequently Asked Questions about P037B 2014 GMC Sierra Code
What does the OBDII code P037B mean on a 2014 GMC Sierra?
The P037B code indicates a high voltage issue in the Wait to Start Indicator Control Circuit, which is part of the diesel engine's glow plug system.
What are the common symptoms of the P037B code?
Symptoms may include the Wait to Start indicator not functioning properly, difficulty starting the engine in cold weather, or the Check Engine Light being illuminated.
What causes the P037B code on a 2014 GMC Sierra?
Common causes include a faulty Wait to Start indicator bulb, damaged wiring or connectors in the circuit, or a malfunctioning engine control module (ECM).
Can I still drive my 2014 GMC Sierra with the P037B code?
Yes, you can drive the truck, but starting the engine in cold temperatures may be more difficult, and ignoring the issue could lead to further damage over time.
How do I troubleshoot the P037B code?
Start by inspecting the Wait to Start indicator bulb, checking the wiring and connectors for damage, and testing the circuit for proper voltage levels.
What tools are needed to diagnose the P037B code?
You’ll need an OBDII scanner, a multimeter for voltage testing, and potentially a wiring diagram for the Wait to Start circuit.
How much does it cost to fix the P037B code?
Repair costs can vary but typically range from $50 to $200, depending on whether the issue is a faulty bulb, damaged wiring, or a more complex ECM problem.
Can a bad glow plug cause the P037B code?
No, the P037B code specifically relates to the Wait to Start indicator circuit and not the glow plugs themselves.
Is the P037B code specific to diesel engines?
Yes, this code is specific to diesel engines, as the Wait to Start indicator is part of the glow plug system used in these engines.
Can resetting the Check Engine Light clear the P037B code?
Temporarily clearing the code with a scanner may turn off the light, but if the underlying issue isn’t fixed, the code will likely return.
Discuss the causes and fixes for P037B 2014 GMC Sierra OBDII Code
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