Tumble Generator Valve Circuit 2 Over Current
2012-2016 Subaru Impreza 2.0L H4
Description
The PCM has detected an overcurrent condition in the Tumble Generator Valve 2 actuator circuit on the left-hand bank. The LH actuator is drawing excessive current.
Symptoms
- Check Engine Light
- TGV 2 erratic operation
- Possible fuse or PCM driver protection activation
Common Causes
- LH TGV actuator internally shorted
- Wiring short in LH circuit
- Mechanical binding of LH TGV
- Water damage to actuator
- Connector fault
Diagnostic Steps
- Test TGV 2 actuator resistance
- Inspect LH wiring for shorts
- Check LH TGV for mechanical binding
- Look for moisture intrusion
- Isolate circuit and retest
Repair Notes
Replace the LH TGV actuator if internally shorted; repair wiring and free any mechanical binding.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1097 on Other Vehicles
Common Questions
What does code P1097 mean on a 2012-2016 Subaru Impreza?
P1097 stands for "Tumble Generator Valve Circuit 2 Over Current". The PCM has detected an overcurrent condition in the Tumble Generator Valve 2 actuator circuit on the left-hand bank. The LH actuator is drawing excessive current.
What are the symptoms of P1097 on a Subaru Impreza?
Common symptoms of P1097 include: Check Engine Light, TGV 2 erratic operation, Possible fuse or PCM driver protection activation.
What causes P1097 on a 2012-2016 Subaru Impreza?
Common causes of P1097 include: LH TGV actuator internally shorted, Wiring short in LH circuit, Mechanical binding of LH TGV, Water damage to actuator, Connector fault.