C0696: Suspension Position Sensor 5V Supply Circuit
2 vehicles · 1 makes
Most Reported On
C0696 is an OBD-II diagnostic trouble code meaning “Suspension Position Sensor 5V Supply Circuit.” A GM (Chevrolet, GMC, Cadillac, Hummer) chassis code covering vehicles with electronic suspension. The suspension control module feeds a shared 5-volt reference to all the suspension position sensors and watches that supply; the code sets when the measured voltage falls below about 3.75V or above about 5.625V. In practice you get a "Service Suspension System" message and the system defaults to a fixed damping setting, so ride quality and automatic load leveling stop working. It is a comfort/handling fault, not a code that leaves you stranded. This code is most commonly reported on 2003-2006 Cadillac Escalade ESV, and 2007-2014 Cadillac Escalade.
Common Causes
Diagnostic Tools
This is a chassis code. A basic engine-code reader will not show it — you need a scanner that reads chassis modules. These read C0696.
One caveat that applies to every scanner: only powertrain codes are standardised across manufacturers. Body, chassis and network coverage is "enhanced" diagnostics, and how deep it goes varies by make and model year — check your specific vehicle against the tool's coverage list before buying.
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level tablet with all-system coverage and bi-directional control, so you can command a module rather than only read it.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
What you can do yourself, and what needs a shop
Reading the code, clearing it, and watching whether it returns is a driveway job with the right scanner. These steps are not:
- Module programming or software updates — needs the manufacturer software or a J2534 pass-through with a paid subscription.
- Replacing a control module — most are VIN-programmed and immobilizer-registered, so a new one does nothing until it is coded to your car.
- Airbag/SRS component work — a stored fault can deploy a live device.
If the vehicle is still under warranty, check for an open recall or technical service bulletin before buying anything — the repair may already be covered.
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Vehicles Affected (2)
FAQ
What does C0696 mean?
C0696 stands for "Suspension Position Sensor 5V Supply Circuit." A GM (Chevrolet, GMC, Cadillac, Hummer) chassis code covering vehicles with electronic suspension. The suspension control module feeds a shared 5-volt reference to all the suspension position sensors and watches that supply; the code sets when the measured voltage falls below about 3.75V or above about 5.625V. In practice you get a "Service Suspension System" message and the system defaults to a fixed damping setting, so ride quality and automatic load leveling stop working. It is a comfort/handling fault, not a code that leaves you stranded.
What are the most common causes of C0696?
The most common causes of C0696 are: Chafed, pinched, or shorted wiring in the suspension sensor harness (often the gray 5V reference wire), A failed ride height / suspension position sensor pulling the shared 5V reference down, Corroded or water-intruded sensor connectors (common at wheel-well locations), Short to ground or to voltage on the 5V reference circuit, Failed electronic suspension control (ESC) module. The specific cause varies by vehicle.
How much does it cost to fix C0696?
Repair costs vary widely depending on the root cause and vehicle.
Which vehicles are affected by C0696?
Au7o has documented C0696 across 2 vehicle models from 1 manufacturers: Cadillac.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.