DTC codes / Ford codes / P1306
P1306 on Ford vehicles means the powertrain control module (PCM) commanded the kickdown relay to pull in but did not see the expected voltage change on the relay's pull-in circuit, so it flagged the circuit as faulty. The kickdown relay is used to signal a downshift request, typically for passing gear or wide-open-throttle kickdown, and the PCM monitors the relay coil and driver circuit for opens, shorts, or a relay that fails to energize.
Guidance is general and written for Ford vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
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