P091D

Gear Shift Position Circuit B High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

Symptoms

Incorrect gear shifting
Check engine light comes on
Transmission transition to emergency mode
Difficulty engaging certain gears
Gear shift lever does not work correctly

Causes

Short circuit to power in the sensor circuit
Shift Position Sensor B Malfunction
Damage to wiring or connectors
Transmission control module (TCM) problems
Corrosion of contacts in the circuit

How to Fix

Check the integrity of the wiring and connectors in the circuit
Check the voltage and resistance in the sensor circuit
Check the operation of the gear shift position sensor B
If necessary, replace the sensor or repair the wiring
Check and, if necessary, reflash the transmission control unit

Related codes

P091C P091E P091F