What Does C0625 Mean?
This code indicates a malfunction in the left rear position sensor, which is part of the vehicle's suspension or ride height system. The control module has detected an implausible signal, no signal, or erratic readings from this sensor. This sensor typically monitors suspension position, ride height, or shock absorber position for active suspension systems, stability control, or automatic leveling systems.
Common Causes
40%
Damaged, corroded, or disconnected wiring harness or connector at the left rear position sensor
35%
Failed left rear position sensor (internal failure or mechanical damage)
15%
Sensor mounting bracket damage or sensor misalignment preventing proper operation
10%
Control module internal fault or software issue
Diagnostic Steps
1
Step 1: Perform a visual inspection of the left rear position sensor and its wiring harness for physical damage, corrosion, loose connections, or damaged mounting brackets. Check for proper sensor alignment with its target or linkage.
2
Step 2: Using a digital multimeter, check the sensor supply voltage (typically 5V reference) and ground at the sensor connector with key on, engine off. Verify readings match manufacturer specifications.
3
Step 3: Measure the sensor signal voltage while manually moving the suspension through its range of travel (vehicle safely supported). The voltage should change smoothly and proportionally; erratic or no change indicates sensor failure.
4
Step 4: Inspect the wiring harness from sensor to control module for chafing, pinch points, or damage. Perform a continuity test on all circuits and check for short circuits to ground or power.
5
Step 5: If all wiring and voltage tests pass, replace the left rear position sensor and clear codes. Road test the vehicle through various suspension movements and verify code does not return.
6
Step 6: If code persists after sensor replacement, perform control module diagnostics or consult manufacturer-specific procedures for module relearn or calibration requirements.
Estimated Repair Cost
$150 - $650
Parts + labor, varies by vehicle and location
This code indicates a malfunction in the left rear position sensor, which is part of the vehicle's suspension or ride height system. The control module has detected an implausible signal, no signal, or erratic readings from this sensor. This sensor typically monitors suspension position, ride height...
The most common cause of C0625 (Left Rear Position Sensor Malfunction) is: Damaged, corroded, or disconnected wiring harness or connector at the left rear position sensor
Typical repair costs for C0625 range from $150 to $650, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Generally safe to drive, but active suspension, automatic leveling, or stability control features may be degraded or disabled. Avoid aggressive driving maneuvers and have the system diagnosed promptly to restore full vehicle stability and handling capabilities.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to C0625 to identify the root cause.
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Quick Info
Category
Chassis
System
Suspension Control System
Difficulty
Type
Generic (SAE)
Recommended Tools
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