This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP
B1337: B1337: Climate Control Fan Motor Malfunction
on 2020 Chevrolet SILVERADO 1500 PICKUP
Important for 2020 Chevrolet SILVERADO 1500 PICKUP Owners
Before starting repairs, verify which engine your 2020 Chevrolet SILVERADO 1500 PICKUP has. Check your VIN or engine code to ensure you order the correct parts.
📖 What Does B1337 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?
Symptoms
- • Fan not blowing
- • uneven airflow
- • unusual noises
- • or complete failure of the climate control system
Common Causes
- • Faulty fan motor
- • faulty fan motor resistor
- • wiring issues
- • or a blown fuse
How to Fix B1337 on 2020 Chevrolet SILVERADO 1500 PICKUP
1. Disconnect the battery to prevent electrical shock. 2. Locate the fan motor resistor and check for any signs of damage or corrosion. 3. Replace the fan motor resistor if damaged. 4. Check the wiring harness for any signs of damage or wear. 5. Replace the wiring harness if damaged. 6. Check the fan motor for any signs of damage or wear. 7. Replace the fan motor if damaged. 8. Check the fan motor mounting and ensure it is securely fastened.
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Read & clear codes on your 2020 Chevrolet SILVERADO 1500 PICKUP
Shop Scanners ↗Related Diagnostic Codes
Other codes that may appear with B1337
B1335: Audio System Malfunction
B1336: Airbag System Fault
B1338: Door Locks Actuator Circuit Malfunction
B1339: Power Window Relay Circuit Malfunction
💡 Why These Codes Are Related:
- • Similar Issues: Same root cause or component failure
- • Related Problems: Often occur together due to system interactions
- • Sequential Codes: Progressive failure stages or multiple sensors
- • Same System: Components within the same automotive system