P26C3

Internal Control Module Transmission Range Sensor Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–167 (est.)

Symptoms

Incorrect gear shifting
Check Engine light comes on
The gearbox goes into emergency mode
Problems starting the engine
Unexpected gear changes

Causes

Gear range sensor malfunction
Wiring harness damage
Problems with the transmission control module
Corrosion or poor contact in connectors
Software error in control module

How to Fix

Check the condition of the gear range sensor
Inspect the wiring harness and connectors for damage.
Check the power supply and ground of the sensor
Scan the control module for additional errors
If necessary, replace the sensor or control module

Related codes

P0705 P0706 P0707