C1562 GMC Code - Device Voltage Reference Output 2 Circuit Malfunction
Quick Answer
The trailer brake control system has a control panel with the trailer gain and manual apply switches. Common causes include Faulty Trailer Brake Control Switch, Trailer Brake Control Switch harness is open or shorted, Trailer Brake Control 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
- C1562 GMC indicates Device Voltage Reference Output 2 Circuit Malfunction.
- Common causes
- Common causes include Faulty Trailer Brake Control Switch, Trailer Brake Control Switch harness is open or shorted, Trailer Brake Control 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.
Code C1562 GMC Description
What are the Possible Causes of the DTC C1562 GMC?
- Faulty Trailer Brake Control Switch
- Trailer Brake Control Switch harness is open or shorted
- Trailer Brake Control Switch circuit poor electrical connection
- Faulty Chassis Control Module-Auxiliary
How to Fix the DTC C1562 GMC?
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 C1562 GMC 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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Information for Specific GMC Models
- C1562 2014 GMC Sierra — Device Voltage Reference Output 2 Circuit Malfunction
- C1562 2015 GMC Sierra — Device Voltage Reference Output 2 Circuit Malfunction
- C1562 2016 GMC Sierra — Device Voltage Reference Output 2 Circuit Malfunction
- C1562 2017 GMC Sierra — Device Voltage Reference Output 2 Circuit Malfunction
- C1562 2018 GMC Sierra — Device Voltage Reference Output 2 Circuit Malfunction
Frequently Asked Questions about C1562 GMC Code
1. What does the OBDII code C1562 mean on a GMC?
C1562 indicates a malfunction in the Device Voltage Reference Output 2 Circuit, which is responsible for supplying a stable voltage reference to certain vehicle systems.
2. What are the common symptoms of code C1562 in a GMC?
Symptoms may include warning lights on the dashboard (like ABS or traction control), erratic behavior of electrical components, or intermittent system failures.
3. What causes the C1562 code to appear on a GMC vehicle?
Possible causes include a faulty voltage reference circuit, damaged wiring, corroded connectors, or failure of a related control module.
4. Can a weak battery trigger the C1562 code on a GMC?
Yes, a weak or failing battery can cause voltage irregularities, which may trigger this code.
5. How can I diagnose the C1562 code in a GMC?
Start by inspecting the wiring and connectors for damage or corrosion, then test the voltage reference circuit and related control modules for proper operation.
6. Is it safe to drive with a C1562 code on a GMC?
It may be safe to drive short distances, but electrical system malfunctions could lead to performance issues or loss of certain safety features.
7. What tools are needed to troubleshoot the C1562 code in a GMC?
You’ll need an OBDII scanner, a multimeter, and possibly a wiring diagram for your specific GMC model to trace the voltage reference circuit.
8. How do I fix the C1562 code on a GMC?
Repairs may involve replacing damaged wiring, cleaning corroded connectors, or replacing a faulty control module if necessary.
9. Can a software issue cause the C1562 code on a GMC?
Yes, a software glitch in the control module could potentially cause the code. Updating or reprogramming the module may resolve the issue.
10. How much does it cost to fix the C1562 code on a GMC?
The cost can vary depending on the cause, but repairs typically range from $100 to $500, especially if a control module needs replacement.
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