Subaru P1594: Automatic Transaxle Diagnosis Input Signal Circuit Malfunction
Is your scanner showing Subaru P1594?
No worries. We'll show you what it means and how to deal with it.
Subaru P1594: Automatic Transaxle Diagnosis Input Signal Circuit Malfunction
OVERVIEWWhat Does The Subaru P1594 Code Mean?
Key on, and the PCM detected an unexpected voltage condition on the A/T Diagnosis Signal circuit (5-volt) during the CCM test.
How Can You Fix The Subaru P1594 Code?
- Check driving condition (shift control function)
- Check vehicle accessories for grounding (car phone, CB etc)
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Twippo 372Pcs Waterproof Wire Connectors Kit
>>> Automatic Transmission Control Module
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
2001 FORESTER SERVICE MANUAL FOR P1594 – Pages 333-334.
