What Does C1708 Mean?
The suspension control module has detected that the right rear center sensor circuit is shorted to battery voltage (Vbat). The signal wire reads a constant high voltage instead of the normal dynamic signal from this body accelerometer or secondary position sensor. The ride control system will lose data from this sensor and operate with reduced input for rear suspension management.
Common Causes
35%
Wiring harness chafing where the signal wire contacts a battery-positive circuit near the rear of the vehicle
25%
Connector corrosion or water damage bridging the power pin to the signal pin
25%
Internal sensor failure with output locked to supply voltage
15%
Improperly routed aftermarket wiring or accessories causing a short to the sensor circuit
Diagnostic Steps
1
Backprobe the right rear center sensor signal at the module connector with key on — should not read near battery voltage. Normal range is typically 0.5–4.5V varying with body motion.
2
Disconnect the right rear center sensor and remeasure the signal wire at the module — if voltage drops, the short is in the sensor; if it remains high, the short is in the harness.
3
Trace the wiring from the module to the sensor, checking for chafing against frame rails, exhaust components, or power wiring. Inspect areas where the harness passes through body panels or grommets.
4
Check the connector for corrosion, moisture, or bent pins. Measure resistance between the signal pin and the supply pin — should be infinite (no continuity).
5
Replace the sensor if it tests shorted internally, and verify the signal returns to normal operating range during a road test.
Estimated Repair Cost
$100 - $500
Parts + labor, varies by vehicle and location
The suspension control module has detected that the right rear center sensor circuit is shorted to battery voltage (Vbat). The signal wire reads a constant high voltage instead of the normal dynamic signal from this body accelerometer or secondary position sensor. The ride control system will lose d...
The most common cause of C1708 (Right Rear Center Sensor Circuit Short to Vbat) is: Wiring harness chafing where the signal wire contacts a battery-positive circuit near the rear of the vehicle
Typical repair costs for C1708 range from $100 to $500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
One center sensor is providing incorrect data. The suspension system will default to a conservative mode for the rear. The vehicle is safe for normal driving but ride optimization will be reduced. Repair within a week.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to C1708 to identify the root cause.
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Quick Info
Category
Chassis
System
Suspension / Ride Control
Difficulty
Type
Manufacturer
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