Code Definition

C198F — Lost Communication with Switch Pack

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

About C198F

C198F 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.

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.

C198F 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) or relevant control module monitors communication with the switch pack module over the LIN or CAN network, depending on vehicle configuration. The switch pack is a cluster of driver operated switches that reports its status to the controlling module as serial data messages rather than as individual hard wired signals. DTC C198F is set when the module detects a loss of communication with the switch pack for a calibrated period, indicating that expected messages are not being received or are invalid. This condition prevents the control module from recognising driver...

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