Code Definition

B1662 — Seat Driver Front Up Circuit Short To Ground

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

About B1662

B1662 is a manufacturer-specific body diagnostic trouble code. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B1662 is stored, the module has detected a short-circuit (voltage pulled to ground or to supply) 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.

B1662 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

B1662 is set by the seat control module when it detects a short to ground condition on the driver front seat cushion up motor circuit. The module monitors the high side drive output for the up motor, and stores this code when current is detected flowing to ground without the corresponding load through the motor windings, or when the supply side of the circuit measures pulled to ground when it should be at battery voltage. A short to ground on a motor drive can blow the seat circuit fuse, prevent the motor from running in the up direction, or cause the module to disable the output to protect it...

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

Quick Facts