What Does C1935 Mean?
The chassis control module has detected a circuit failure in the warning chime output. The chime is used to audibly alert the driver when a chassis system fault is detected, such as air suspension failure, stability control disable, or brake system warning. Without a functioning chime, the driver may miss critical audible warnings.
Common Causes
40%
Failed chime buzzer or speaker element with an open or shorted coil
30%
Open wiring between the chassis module and the chime unit
20%
Corroded or disconnected connector at the chime module, typically behind the instrument panel
10%
Chassis module internal chime driver circuit failure
Diagnostic Steps
1
Step 1: Locate the warning chime module (typically behind the instrument panel near the steering column). Apply 12V directly to the chime terminals to verify it can produce sound.
2
Step 2: With key on, measure voltage at the chime connector while triggering a known chime event (e.g., opening the door with key in ignition). Look for a pulsing 12V signal.
3
Step 3: Check wiring continuity from the chassis module chime output to the chime module connector.
4
Step 4: Inspect the chime connector for corrosion or loose terminals.
5
Step 5: Replace the chime module if it fails the direct power test. Clear codes and trigger a chime event to verify.
Estimated Repair Cost
$20 - $150
Parts + labor, varies by vehicle and location
The chassis control module has detected a circuit failure in the warning chime output. The chime is used to audibly alert the driver when a chassis system fault is detected, such as air suspension failure, stability control disable, or brake system warning. Without a functioning chime, the driver ma...
The most common cause of C1935 (Chime Circuit Failure) is: Failed chime buzzer or speaker element with an open or shorted coil
Typical repair costs for C1935 range from $20 to $150, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Without a functioning warning chime, the driver may not receive audible alerts for critical chassis system faults. Rely on visual dashboard warnings until the chime is repaired.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to C1935 to identify the root cause.
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Quick Info
Category
Chassis
System
Chassis Warning / Chime System
Difficulty
Type
Manufacturer
Recommended Tools
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