What Does C1796 Mean?
The right rear air spring solenoid output circuit is open. There is a break in the electrical path to the RR solenoid, meaning the air suspension module cannot energize it to add or release air. The right rear of the vehicle cannot be leveled and may sag. An air suspension warning indicator will be displayed.
Common Causes
30%
Open coil in the right rear air spring solenoid (burned out winding)
30%
Broken or severed wire in the solenoid control circuit
20%
Disconnected or damaged connector at the solenoid
15%
Corroded terminal causing high-resistance open at connector
5%
Air suspension module connector terminal issue
Diagnostic Steps
1
Disconnect the RR solenoid connector and measure coil resistance — should be 3-10 ohms. OL (infinite) means the coil is open and the solenoid needs replacement.
2
If the coil tests good, perform continuity checks on each wire from the solenoid connector back to the air suspension module connector — both wires should read less than 2 ohms.
3
Inspect the wiring harness for physical damage, especially near the right rear wheel well, trailing arm, and anywhere the harness passes through body panels.
4
Check both connectors for backed-out terminals, broken wire strands at crimp points, and corrosion that creates a high-resistance open.
5
Perform a wiggle test on the harness while monitoring continuity to detect an intermittent open in the wiring.
Estimated Repair Cost
$100 - $700
Parts + labor, varies by vehicle and location
The right rear air spring solenoid output circuit is open. There is a break in the electrical path to the RR solenoid, meaning the air suspension module cannot energize it to add or release air. The right rear of the vehicle cannot be leveled and may sag. An air suspension warning indicator will be ...
The most common cause of C1796 (Air Suspension RR Air Spring/Shock Solenoid Output Circuit Open) is: Open coil in the right rear air spring solenoid (burned out winding)
Typical repair costs for C1796 range from $100 to $700, depending on the vehicle, location, and whether you do it yourself or go to a shop.
The right rear cannot be leveled, causing the vehicle to lean. This affects headlight aim, handling, and braking. Avoid heavy loads and towing. Moderate-speed driving to a repair facility is generally acceptable if the lean is not severe.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to C1796 to identify the root cause.
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Quick Info
Category
Chassis
System
Air Suspension System
Difficulty
Type
Manufacturer
Recommended Tools
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