What Does C1952 Mean?
The stability control module has detected an open circuit in the yaw rate sensor, which measures the vehicle's rotation rate around its vertical axis (how quickly the vehicle is spinning/turning). The yaw rate sensor is the single most important sensor for electronic stability control — it directly detects when the vehicle is beginning to spin or skid. ESC and traction control will be completely disabled. The driver will see stability control warning lights.
Safety Warning
This is the primary stability control sensor — without it, ESC is completely non-functional. The vehicle cannot detect or correct spinning, skidding, or loss of directional control. ABS basic braking function should remain. Avoid driving in adverse conditions, reduce speed in curves, and repair as soon as possible. This is a high-priority safety repair.
Common Causes
30%
Disconnected or corroded yaw rate sensor connector
25%
Failed yaw rate sensor (internal open circuit)
25%
Broken wire in the sensor harness — often from service work disturbing the routing
10%
Water intrusion into the sensor or connector causing corrosion-induced open
10%
ESC module connector issue — backed-out or damaged pin on yaw rate circuit
Diagnostic Steps
1
Locate the yaw rate sensor — it is typically a combined unit with accelerometers, mounted under the center console on the transmission tunnel. Verify the connector is fully seated, locked, and free of corrosion.
2
With the sensor disconnected, measure for 5V reference and ground at the connector from the ESC module. Both must be present for the sensor to operate.
3
Check continuity on all wires from the sensor connector to the ESC module connector. The yaw rate sensor typically has 5V reference, ground, and one or two signal wires. An open on any will cause this code.
4
If the vehicle has had recent interior or console work, check for a pinched or disconnected wire along the sensor harness route. Center console removal is a common time this harness gets damaged.
5
If all wiring checks pass, connect the sensor and monitor the yaw rate live data PID. With the vehicle stationary, it should read approximately 0 degrees/second. If there is no reading at all, the sensor has failed internally.
Estimated Repair Cost
$150 - $800
Parts + labor, varies by vehicle and location
The stability control module has detected an open circuit in the yaw rate sensor, which measures the vehicle's rotation rate around its vertical axis (how quickly the vehicle is spinning/turning). The yaw rate sensor is the single most important sensor for electronic stability control — it directly ...
The most common cause of C1952 (Yaw Rate Sensor Circuit Open) is: Disconnected or corroded yaw rate sensor connector
Typical repair costs for C1952 range from $150 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
This is the primary stability control sensor — without it, ESC is completely non-functional. The vehicle cannot detect or correct spinning, skidding, or loss of directional control. ABS basic braking function should remain. Avoid driving in adverse conditions, reduce speed in curves, and repair as soon as possible. This is a high-priority safety repair.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to C1952 to identify the root cause.
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Quick Info
Category
Chassis
System
Stability Control / Traction Control
Difficulty
Type
Manufacturer
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