P037B Chevrolet 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 Chevrolet 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 Chevrolet Description
What are the Possible Causes of the DTC P037B Chevrolet?
- 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 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 P037B 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 P037B Chevrolet code?
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Information for Specific Chevrolet Models
- P037B 2014 Chevrolet Silverado — Wait To Start Indicator Control Circuit High Voltage
- P037B 2015 Chevrolet Silverado — Wait To Start Indicator Control Circuit High Voltage
- P037B 2016 Chevrolet Silverado — Wait To Start Indicator Control Circuit High Voltage
- P037B 2017 Chevrolet Silverado — Wait To Start Indicator Control Circuit High Voltage
- P037B 2018 Chevrolet Silverado — Wait To Start Indicator Control Circuit High Voltage
Frequently Asked Questions about P037B Chevrolet Code
1. What does the OBDII code P037B mean on a Chevrolet?
P037B indicates a high voltage issue in the Wait To Start Indicator Control Circuit, which is part of the diesel engine's glow plug system.
2. What are the common symptoms of code P037B in a Chevrolet?
Symptoms may include the Wait To Start light staying on longer than normal, failure to illuminate, hard starting in cold weather, or no noticeable symptoms at all.
3. What causes the P037B code to appear on a Chevrolet?
Common causes include a faulty Wait To Start indicator bulb, damaged wiring or connectors in the circuit, or a malfunctioning glow plug control module.
4. How do you diagnose the P037B code on a Chevrolet?
Diagnosis involves checking the wiring and connectors for damage, testing the Wait To Start bulb for proper operation, and using a multimeter to verify voltage levels in the circuit.
5. Can a faulty glow plug cause the P037B code on a Chevrolet?
While the code specifically relates to the indicator circuit, issues in the glow plug system, such as a faulty glow plug or control module, can indirectly contribute to the problem.
6. Is it safe to drive a Chevrolet with the P037B code?
Yes, it is generally safe to drive, but starting the vehicle in cold weather may become difficult, and addressing the issue promptly is recommended to avoid further problems.
7. How do I fix the P037B code on a Chevrolet?
Repairs may involve replacing a faulty Wait To Start bulb, repairing damaged wiring or connectors, or replacing the glow plug control module if it’s defective.
8. How much does it cost to fix the P037B code on a Chevrolet?
Repair costs vary but can range from $50 to $500 depending on whether it’s a simple bulb replacement or a more complex issue like a faulty control module.
9. Can a dead battery trigger the P037B code on a Chevrolet?
A weak or dead battery is unlikely to cause this specific code but can lead to other electrical issues, so it’s worth inspecting the battery condition.
10. Will clearing the P037B code with a scanner fix the problem on a Chevrolet?
Clearing the code will reset the check engine light, but if the underlying issue isn’t resolved, the code will likely return.
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