Code Definition

B1616 — Wiper Rear Disable Switch Circuit Open

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

About B1616

B1616 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 B1616 is stored, the module has detected an open (broken or disconnected) electrical path in the monitored circuit.

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.

B1616 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 B1616 code is set by the Generic Electronic Module (GEM) on Ford vehicles when an open circuit is detected on the rear wiper disable switch input. The disable switch is typically a tailgate or rear glass ajar contact that the GEM uses to inhibit rear wiper operation when the rear glass or hatch is not in the secured position. An open circuit means the GEM no longer sees electrical continuity through the switch and its wiring back to the GEM reference. When this code is set, the rear wiper interlock cannot be evaluated reliably, which may cause the rear wiper to refuse operation, run contin...

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