To make an automated manual transmission function like an automatic, what is called a gate selector actuator uses multiple sensors and an electric motor to move everything inside the transmission. If there is an electrical signal on the GSA assembly circuit that is not within the preprogrammed range or performance parameters, record a DTC P0911.
How severe is the code?
Diagnostic code P0911 is one of the most serious OBD2 codes because it means the transmission is not fully controlled by the ECU.
Symptoms
Symptoms of a P0911 include:
- Hard or delayed shifts
- Erratic transmission behavior
- The transmission wants to stay in one gear
- The transmission refuses to engage a gear
- Clutch slipping
- The engine seems to misfire
Causes
- Faulty shift assembly
- Faulty clutch position sensor
- Faulty clutch actuator
- Misadjusted control linkages
- Damaged wiring and/or connectors
- Faulty clutch or transmission
How to diagnose the code?
The diagnostic procedure to determine the cause of an OBDII P0911 trouble code varies by manufacturer, so a technician will need to determine the exact diagnostic procedure for your vehicle type.
What repairs will fix P0911?
- Replace the shift mechanism
- Replace the clutch position sensor
- Replace the clutch actuator
- Replace the clutch
- Repair or replace damaged wiring or connectors
- Adjust or repair control linkages
- Repair or replace the transmission