What Does C1767 Mean?
The rear air suspension height sensor low-range signal circuit is shorted to battery voltage. The module sees a constant high voltage instead of a variable height signal on this circuit. Rear fine-level height control is disabled.
Common Causes
35%
Signal wire chafed against a positive power wire in the harness
25%
Connector corrosion bridging signal pin to power pin
25%
Internal sensor failure causing high signal output
15%
Aftermarket wiring splice creating a short to power
Diagnostic Steps
1
Step 1: Disconnect the sensor and check if battery voltage is present on the signal wire at the harness side.
2
Step 2: Disconnect at the module end and check the harness for a signal-to-power short.
3
Step 3: Trace the harness for physical damage, especially where it runs alongside power feeds.
4
Step 4: Test the sensor for an internal short between signal and power pins.
5
Step 5: Repair the short or replace the sensor, clear codes, and calibrate.
Estimated Repair Cost
$150 - $500
Parts + labor, varies by vehicle and location
The rear air suspension height sensor low-range signal circuit is shorted to battery voltage. The module sees a constant high voltage instead of a variable height signal on this circuit. Rear fine-level height control is disabled.
The most common cause of C1767 (Air Suspension Rear Height Sensor Low Signal Circuit Short To Battery) is: Signal wire chafed against a positive power wire in the harness
Typical repair costs for C1767 range from $150 to $500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Rear height regulation is impaired. Vehicle is drivable at moderate speeds. Schedule repair to restore proper ride height control.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to C1767 to identify the root cause.
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Quick Info
Category
Chassis
System
Air Suspension System
Difficulty
Type
Manufacturer
Recommended Tools
OBD2 Scanner
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