C1562 2018 GMC Sierra 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 2018 GMC Sierra 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 2018 GMC Sierra Description
What are the Possible Causes of the DTC C1562 2018 GMC Sierra?
- 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 2018 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 C1562 2018 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 C1562 2018 GMC Sierra code?
Need more information on how to fix the C1562 2018 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the C1562 2018 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about C1562 2018 GMC Sierra Code
1. What does the OBDII code C1562 mean on a 2018 GMC Sierra?
C1562 indicates a malfunction in the Device Voltage Reference Output 2 Circuit, which affects the voltage supplied to specific components.
2. What are common symptoms of code C1562 on a GMC Sierra?
Symptoms include warning lights on the dashboard, erratic behavior of components relying on the voltage reference, or loss of functionality in certain systems.
3. What causes the C1562 code to appear?
Common causes include wiring issues, damaged connectors, a faulty control module, or grounding problems in the voltage reference circuit.
4. How can I diagnose the C1562 code on my GMC Sierra?
Use an OBDII scanner to confirm the code, visually inspect wiring and connectors, and perform voltage tests on the related circuit.
5. Can a faulty ground connection cause the C1562 code?
Yes, a poor or damaged ground connection can disrupt the voltage reference circuit and trigger this code.
6. Is it safe to drive with the C1562 code active on a GMC Sierra?
It’s not recommended, as the code can impact critical systems, potentially leading to erratic vehicle behavior.
7. What parts should I check when troubleshooting code C1562?
Inspect the wiring harness, connectors, voltage reference circuit paths, and the control module associated with the circuit.
8. How do I fix the C1562 code on my GMC Sierra?
Repairs may involve fixing damaged wiring, replacing faulty connectors, or replacing the control module if it’s determined to be defective.
9. Will clearing the code fix the problem permanently?
Clearing the code might remove it temporarily, but the underlying issue must be addressed to prevent it from returning.
10. Should I take my GMC Sierra to a mechanic for the C1562 code?
If you’re not experienced with electrical diagnostics, it’s advisable to consult a qualified mechanic for accurate troubleshooting and repairs.
Discuss the causes and fixes for C1562 2018 GMC Sierra OBDII Code
Code C1562 2018 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
