What Does C1425 Mean?
The suspension control module has detected a short-to-ground condition in the right rear (RR) electronically controlled damper circuit. The damper control wiring is making unintended contact with the vehicle chassis ground, preventing the module from properly adjusting the RR shock absorber's damping force. The adaptive ride system will default the RR damper to a fixed setting.
Common Causes
40%
Chafed or pinched wiring where the RR damper harness contacts body or suspension components
25%
Moisture intrusion and corrosion in the RR damper actuator connector
20%
RR electronic damper actuator coil internally shorted to housing ground
15%
Suspension control module internal driver fault
Diagnostic Steps
1
Disconnect the suspension module connector. Measure resistance from each RR damper circuit pin to chassis ground — should read OL (infinite). Any measurable resistance confirms a short to ground.
2
Disconnect the RR damper actuator at the shock absorber and re-measure at the module harness connector. If the short clears, the actuator is internally shorted to its housing.
3
If the short persists with the actuator disconnected, trace the RR damper harness from the module to the actuator. Inspect for chafing against the rear subframe, trailing arm brackets, body seams, and trunk/cargo area metal edges.
4
Check the RR damper connector for water accumulation and corrosion. Rear damper connectors are exposed to road spray from the rear tires and can collect moisture. Replace damaged seals and apply dielectric grease.
5
After repair, verify actuator coil resistance (1-5 ohms between pins, OL to case), clear all codes, and test the adaptive ride system in all modes to confirm proper RR damper response.
Estimated Repair Cost
$150 - $900
Parts + labor, varies by vehicle and location
The suspension control module has detected a short-to-ground condition in the right rear (RR) electronically controlled damper circuit. The damper control wiring is making unintended contact with the vehicle chassis ground, preventing the module from properly adjusting the RR shock absorber's dampin...
The most common cause of C1425 (Damper RR Circuit Short to Ground) is: Chafed or pinched wiring where the RR damper harness contacts body or suspension components
Typical repair costs for C1425 range from $150 to $900, depending on the vehicle, location, and whether you do it yourself or go to a shop.
The RR damper defaults to a fixed setting, causing uneven ride and handling characteristics, particularly noticeable over bumps and in rear-end stability during cornering. Safe to drive at normal speeds. Schedule repair to restore balanced adaptive suspension performance.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to C1425 to identify the root cause.
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Quick Info
Category
Chassis
System
Suspension / Ride Control
Difficulty
Type
Manufacturer
Recommended Tools
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