P27B2

Internal Control Module Transmission Range Control Performance

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–278 (est.)

Symptoms

Incorrect gear shifting
Check Engine Light Illuminates
Transmission transition to emergency mode
Loss of engine power
Delays when shifting gears

Causes

Transmission control module malfunction
Problems with wiring or connectors
Mechanical damage to the switching mechanism
Software error in the module
Malfunction of position sensors

How to Fix

Check the condition of the wiring and connectors
Scan the control module for errors
Test shift mechanism position sensors
Reflash or replace the control module
Check the gear shift mechanism for damage

Related codes

P27B1 P27B3 P0700