What Does C1703 Mean?
The suspension control module has detected a complete failure of the right rear sensor circuit. No valid signal is being received from the right rear ride height or position sensor. The circuit may be open, shorted to ground, or the sensor has completely stopped functioning. The ride control warning light will be illuminated and the suspension system will operate in a degraded default mode.
Common Causes
35%
Right rear ride height sensor physically failed or internally open-circuited
30%
Open wiring in the sensor harness — broken wire, pulled terminal, or disconnected plug
20%
Heavy corrosion or water damage at the sensor connector causing total signal loss
15%
Sensor mounting bracket broken or link arm disconnected from the suspension
Diagnostic Steps
1
Visually inspect the right rear ride height sensor — verify it is present, properly mounted, and the link arm is connected and intact.
2
Check the sensor connector for a secure connection. Measure the 5V reference supply voltage at the sensor connector — if absent, trace the supply wire back to the module for an open circuit.
3
With the sensor connected, measure the signal wire voltage while manually actuating the sensor through its travel range — should vary between 0.5V and 4.5V.
4
If no signal is present, disconnect the sensor and measure continuity on all three wires (supply, signal, ground) between the sensor connector and the module connector.
5
If the harness tests good and supply voltage is present, the sensor itself has likely failed internally — replace the right rear sensor and verify proper signal output.
Estimated Repair Cost
$100 - $550
Parts + labor, varies by vehicle and location
The suspension control module has detected a complete failure of the right rear sensor circuit. No valid signal is being received from the right rear ride height or position sensor. The circuit may be open, shorted to ground, or the sensor has completely stopped functioning. The ride control warning...
The most common cause of C1703 (Right Rear Sensor Circuit Failure) is: Right rear ride height sensor physically failed or internally open-circuited
Typical repair costs for C1703 range from $100 to $550, depending on the vehicle, location, and whether you do it yourself or go to a shop.
The right rear corner has no position feedback. The suspension system will default to a safe but non-adaptive mode. Driving is acceptable for short trips at normal speeds, but handling stability may be reduced, especially on rough roads. Repair within a few days.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to C1703 to identify the root cause.
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Quick Info
Category
Chassis
System
Suspension / Ride Control
Difficulty
Type
Manufacturer
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