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Home >> Subaru >> 2014 >> BRZ Limited, Automatic Trans >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle (Diagnostics) >> Automatic Transmission System >> DTC P1817 Manual Switch System (Low) >> Circuit description

Circuit description

The transmission control computer ASSY detects M position based on signals from the manual mode switch ASSY.

DTC No. SAE/TCCS DTC detecting condition
  1. Diagnosis condition
  2. Abnormal condition
  3. Abnormal period
  4. Other
 Inspection parts
P1817
  1. Shift position sensor is normal and learning control is not prohibited.
  2. M switch is ON when select lever is in P, N, or R position
  3. Continuing 2 seconds
  4. 1 trips
  • Manual mode switch ASSY
  • Wiring harness and connector
  • Transmission control computer ASSY
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