P27F0

Transmission Range Control B Position Sensor/Switch Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–56 (est.)

Symptoms

Incorrect gear shifting
Check engine light comes on
Transmission transition to emergency mode
Difficulty shifting gears
Unexpected gear changes

Causes

Selector lever position sensor B malfunction
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Oxidation of sensor contacts
Problems with the transmission control unit

How to Fix

Check the condition of the selector lever position sensor B
Check the integrity of the sensor circuit
Clean the sensor and connector contacts
Check the operation of the transmission control unit
If necessary, replace selector lever position sensor B

Related codes

P27F1 P27F2 P0705