Subaru OBD-II 1996 & Newer models DTC P1094 – Tumble generator valve circuit #1 (open circuit)
DTC P1094 meaning on Subaru OBD-II 1996 & Newer models
DTC P1094 indicates an open circuit in the Tumble Generator Valve Circuit #1 on Subaru vehicles equipped with OBD-II systems from 1996 onwards.
Subaru OBD-II 1996 & Newer models DTC P1094 symptoms
- Check Engine Light (CEL) illuminated on the dashboard
- Reduced engine performance or power
- Engine may run rough or stall
Subaru OBD-II 1996 & Newer models DTC P1094 causes
- Faulty Tumble Generator Valve
- Open or short circuit in the wiring harness connected to the Tumble Generator Valve
- Corrosion or poor connections in the electrical connectors
Subaru OBD-II 1996 & Newer models DTC P1094 seriousness
The seriousness of DTC P1094 lies in the potential for reduced engine performance and efficiency. Ignoring this issue can lead to further damage to engine components over time.
How to diagnose DTC P1094 on Subaru OBD-II 1996 & Newer models
- Use an OBD-II scanner to retrieve the trouble code and freeze frame data
- Inspect the Tumble Generator Valve and its wiring for any visible damage or corrosion
- Check the electrical connectors for proper connection and signs of damage
- Perform a continuity test on the wiring harness to identify any open or short circuits
How to fix DTC P1094 on Subaru OBD-II 1996 & Newer models
- Replace the faulty Tumble Generator Valve if necessary
- Repair any open or short circuits in the wiring harness
- Clean or replace corroded electrical connectors
- Clear the trouble code and test drive the vehicle to ensure the issue has been resolved
How to erase DTC P1094 on Subaru OBD-II 1996 & Newer models
- Use an OBD-II scanner to clear the trouble code from the vehicle’s memory
- Alternatively, disconnect the vehicle’s battery for a few minutes to reset the ECU and clear the code
- Ensure the underlying issue causing DTC P1094 has been addressed before clearing the code
Recommended tools for Subaru OBD-II 1996 & Newer models diagnostics
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Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
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