An automated manual transmission/semi automatic transmission works like a manual, in that you can change gears faster thanks to the single or dual clutches. When you put the shifter into gear, the gear shift position actuator uses an electric motor to help engage the gear. If the ECU detects a problem on the transmission GSP actuator circuit, a P0914 DTC will be saved.
How Serious is the Code?
A P0914 diagnostic trouble code is extremely serious, and the transmission problems related to this will eventually render your vehicle undrivable.
Symptoms of a P0914 include:
- Delayed, harsh or erratic shifts
- Transmission gets stuck in a gear
- Failed gear engagement
- Damaged wiring and/or connectors
- Failed sensor
- ECU/TCM issues
How to Diagnose the Code?
Diagnosing a P0914 OBDII trouble code can be a complicated process, so the technician should use the manufacturer’s troubleshooting process. This typically involves a number of electrical and mechanical tests, and many times the ECU will have to be updated with new software or put into “relearn” mode.
What Repairs Will Fix P0914?
- Repair or replace damaged wiring/connectors
- Replace failed sensors
- Update or replace ECU/TCM
- P0915 – Gear Shift Position Circuit Range/Performance
- P0916 – Gear Shift Position Circuit Low
- P0917 – Gear Shift Position Circuit High
- P0918 – Gear Shift Position Circuit Intermittent
- P0919 – Gear Shift Position Control Error
- P0920 – Gear Shift Forward Actuator