What Does C1752 Mean?
The vehicle speed sensor (VSS) #1 output circuit is shorted to ground. The ABS/ECM module has detected the VSS signal wire is being held at ground potential instead of producing a pulsed speed signal. This prevents accurate speed measurement and disables ABS and traction control functions.
Common Causes
35%
Chafed VSS output wire contacting chassis ground or a grounded component
25%
Water intrusion or corrosion in the VSS connector causing ground path
25%
Internal short to ground within the vehicle speed sensor
15%
Ground fault inside the ABS control module
Diagnostic Steps
1
Step 1: Disconnect the VSS connector and measure resistance from the output pin to chassis ground — infinite resistance expected; low resistance indicates a harness short.
2
Step 2: If the harness side reads low resistance, disconnect at the module end and test the harness alone section by section.
3
Step 3: Inspect the VSS wiring for chafing against brackets, transmission housing, or suspension components.
4
Step 4: Test the VSS sensor internally — measure output pin to sensor body/ground pin for unexpected continuity.
5
Step 5: Repair or replace the shorted wiring or sensor, clear codes, and road test to confirm proper speed signal.
Estimated Repair Cost
$100 - $350
Parts + labor, varies by vehicle and location
The vehicle speed sensor (VSS) #1 output circuit is shorted to ground. The ABS/ECM module has detected the VSS signal wire is being held at ground potential instead of producing a pulsed speed signal. This prevents accurate speed measurement and disables ABS and traction control functions.
The most common cause of C1752 (Vehicle Speed Sensor # 1 Output Circuit Short to Gnd) is: Chafed VSS output wire contacting chassis ground or a grounded component
Typical repair costs for C1752 range from $100 to $350, depending on the vehicle, location, and whether you do it yourself or go to a shop.
ABS and traction control are disabled. Speedometer may not function. Vehicle is drivable but ABS braking capability is lost — repair soon.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to C1752 to identify the root cause.
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Quick Info
Category
Chassis
System
Vehicle Speed Sensing / ABS System
Difficulty
Type
Manufacturer
Recommended Tools
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