Code Definition

B1822 — Wiper Rear Park Sense Input Circuit Failure

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

About B1822

B1822 is a manufacturer-specific body diagnostic trouble code recorded for Ford vehicles. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B1822 is stored, the module has detected an electrical-circuit fault in the wiring, connector, or driver associated with the named component.

Scanning & clearing: Body (B) codes are often stored in the body control module, airbag module, or climate module. A basic OBD-II tool usually will not read body codes — an enhanced or OEM-level scan tool is typically required.

B1822 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 Body Control Module (BCM) monitors the rear wiper park sense input on Ford vehicles equipped with a rear wiper system. The park sense signal is a feedback line from the rear wiper motor (typically generated by a parked position contact, cam switch, or hall sensor inside the motor housing) that tells the BCM when the wiper blade has reached its parked position at the bottom of its sweep. DTC B1822 is set when the BCM detects that the park sense input is electrically out of range, stuck at a single state, or otherwise not behaving as expected during a wipe cycle. Without a valid park sense s...

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