What Does C1907 Mean?
The ride control module has detected a short-to-battery condition on the left rear shock actuator circuit. An external voltage source is being applied to the control wire, causing uncontrolled solenoid energization and potential damage to the module's output driver.
Common Causes
40%
Chafed control wire contacting a power feed wire in the rear harness bundle
25%
Internal actuator solenoid short between coil and power terminal
25%
Connector contamination bridging control to power pins
10%
Module output driver failure on the LR channel
Diagnostic Steps
1
Step 1: Disconnect the LR shock actuator and check for voltage on the control wire (key on). Voltage present confirms wiring short or module fault.
2
Step 2: Measure resistance from the control wire to B+ and other power wires to locate the short.
3
Step 3: Inspect the harness for chafing near the shock tower, wheel well, and exhaust routing.
4
Step 4: Check the connector for moisture, debris, or corrosion bridging terminals.
5
Step 5: Repair the short and verify proper actuator control through all damping modes.
Estimated Repair Cost
$150 - $850
Parts + labor, varies by vehicle and location
The ride control module has detected a short-to-battery condition on the left rear shock actuator circuit. An external voltage source is being applied to the control wire, causing uncontrolled solenoid energization and potential damage to the module's output driver.
The most common cause of C1907 (Ride Control LR Shock Actuator Circuit Short To Battery) is: Chafed control wire contacting a power feed wire in the rear harness bundle
Typical repair costs for C1907 range from $150 to $850, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Constant solenoid energization locks the damper in one mode, creating asymmetric damping that affects handling predictability, particularly during cornering.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to C1907 to identify the root cause.
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Quick Info
Category
Chassis
System
Electronic Ride Control / Adaptive Suspension
Difficulty
Type
Manufacturer
Recommended Tools
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