Code Definition

C1852 — Air Suspension Warning Lamp Circuit Short To Battery

System: Chassis  |  Type: Manufacturer-Specific  |  Make: Ford

About C1852

C1852 is a manufacturer-specific chassis diagnostic trouble code recorded for Ford vehicles. It belongs to the C-prefix family of codes, which covers chassis, braking, steering, suspension, or stability-control faults.

When C1852 is stored, the module has detected a short-circuit (voltage pulled to ground or to supply) in the monitored circuit.

Scanning & clearing: Chassis (C) codes are stored in the ABS, traction control, or stability-control modules. An enhanced or OEM-level scan tool is usually required to read and clear them.

C1852 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The Ford air suspension control module drives the air suspension warning lamp and monitors its output circuit to confirm the lamp can be illuminated when a fault is present. DTC C1852 sets specifically when the module detects a short to battery voltage on the warning lamp circuit, meaning the lamp control wire is being pulled up to a power source when the module is not commanding it. This is typically caused by chafed wiring contacting a positive feed, a short between adjacent circuits, or moisture bridging the lamp wire to voltage inside a connector. When this code is set the air suspension w...

Join TaT to view the complete code information and diagnostic details.

Quick Facts