C1500 on CHEVROLET SILVERADO
Transfer Case Contact Plate "B" Encoder Circuit Failure
Methodology: Reviewed against the SAE J2012 generic DTC definition and NHTSA owner-complaint patterns, then scoped to Chevrolet model context without treating complaints as confirmed diagnoses.
Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).
- SAE J2012 Diagnostic Trouble Code Definitions — Generic diagnostic trouble code definition reference for C1500.
- NHTSA recalls, complaints, and manufacturer communications — Used to check public owner complaint context, recall status, and safety-related manufacturer communications by VIN or vehicle.
Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.
What C1500 Means on Your CHEVROLET SILVERADO
C1500 is a diagnostic trouble code indicating: Transfer Case Contact Plate "B" Encoder Circuit Failure. This code relates to the chassis system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.
Real CHEVROLET SILVERADO Owner Reports
Source: NHTSA Complaints Database
"Steering problems with 2005 chevrolet c1500 truck, tie rods worn out at 20k intermediate steering shaft wore out as well dealer unable to correct safety issues under warranty."
"Dt: 2005 chevy c1500 half ton pickup t was placed in storage for about a month. this vehicle was never used and had only 13 miles on the speedometer when recieved from the dealer. this was a company vehicle, and when out of storage it was discovered there was no brake fluid."
"While making a left turn from a 60 mph highway in my 2006 chevrolet c1500 truck my right rear axle came completely out with tire still attached. thank god i had slowed to about 20 mph to make the left turn when it happened or a crash could have resulted."
"C1500 at times when stopping will shut down, all lights on the dash board will light up and whole truck will shake. took to chevy dealer ship they said needed new motor.. already put top end of motor in 1 1/2 years ago - same thing is happening now but they say needs new motor."
"Tl*the contact owns a 2007 chevrolet silverado c1500. when attempting to accelerate the vehicle at 10 mph, the contact heard a loud clunking and revving noise as if it were downshifting or upshifting. the dealer speculated that the transmission was the cause of the failure."
All reports filed by vehicle owners directly with the U.S. Department of Transportation.
📊 Complaint Trend by Model Year
Common Causes on CHEVROLET SILVERADO
Based on NHTSA complaint component analysis for this vehicle.
What To Do Next
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1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
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2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
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3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.