When the selector lever is in the position other than "P" or "N", the electrical circuit for starting the engine is kept in the OFF state by the inhibitor switch. Therefore, the engine does not start even if the ignition switch is turned to the "START" position. Inhibitor switch is installed on the transaxle case located at the upper end of the manual control shaft and is interlocked with the manual control lever.

By shifting the selector to the "P" or "N" range, the electrical circuit inside the inhibitor switch is connected to form the ignition circuit with which the engine can be started. When the shift is in the "R" range, the backup lamp lights up as backup lamp circuit is energized.

The inhibitor switch, in addition to the start safety device, also includes a circuit for detection of the selector lever position, for sending signals to the transaxle control module.

Fig 1: Identifying Selector Lever

Courtesy of KIA MOTORS AMERICA, INC.KIA MOTORS AMERICA, INC.

SHIFT LEVER CONTINUITY REFERENCE CHART

Type	Type: rotary type Use available temperature: -40°C to 1410°C (-400°F to 286°F) TORQUE: 1.0-1.2 kg/m
Function	Detect shift lever position It makes starting possible in "P" & "N".
Terminal	Courtesy of KIA MOTORS AMERICA, INC.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Transaxle Range (Tr) Switch: Description

Use the Manual With the Right Hardware

When to See a Mechanic

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