What Does C1704 Mean?
The suspension control module has detected a general circuit fault in the right rear sensor. This encompasses intermittent signal loss, noisy or erratic readings, or out-of-range values that do not fit a specific short or open circuit pattern. The ride control light may illuminate intermittently, and the driver may notice occasional ride quality inconsistencies as the system toggles between normal and default operation.
Common Causes
30%
Intermittent electrical connection at the right rear sensor connector from vibration or corrosion
30%
Right rear sensor developing internal wear with erratic or noisy output
20%
Partially damaged wiring that makes intermittent contact during suspension movement
20%
Worn sensor linkage causing mechanical dead spots or inconsistent signal correlation
Diagnostic Steps
1
Monitor the right rear sensor live data on the scan tool while driving over bumps — look for signal dropouts, sudden spikes, or flat spots that indicate intermittent faults.
2
Perform a wiggle test on the right rear sensor connector and wiring while watching the signal on the scan tool for any correlating disruptions.
3
Inspect the sensor linkage for play, wear, or binding. The link arm should move freely and maintain constant contact without slop in the pivot points.
4
Clean and reseat the right rear sensor connector. Inspect for corroded, spread, or damaged terminals. Apply dielectric grease to prevent future moisture intrusion.
5
Compare the right rear sensor output to the left rear at matching ride heights — they should read within 10% of each other. A large offset suggests sensor drift or linkage misalignment.
Estimated Repair Cost
$80 - $450
Parts + labor, varies by vehicle and location
The suspension control module has detected a general circuit fault in the right rear sensor. This encompasses intermittent signal loss, noisy or erratic readings, or out-of-range values that do not fit a specific short or open circuit pattern. The ride control light may illuminate intermittently, an...
The most common cause of C1704 (Right Rear Sensor Circuit Fault) is: Intermittent electrical connection at the right rear sensor connector from vibration or corrosion
Typical repair costs for C1704 range from $80 to $450, depending on the vehicle, location, and whether you do it yourself or go to a shop.
The suspension control system has intermittent position data for the right rear corner. The vehicle remains safe for routine driving, but ride quality may fluctuate. Schedule a diagnosis within the next week to prevent progression to a complete circuit failure.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to C1704 to identify the root cause.
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Quick Info
Category
Chassis
System
Suspension / Ride Control
Difficulty
Type
Manufacturer
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