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Home >> Suzuki >> 2006 >> Grand Vitara Base, AWD, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission >> Diagnostic Information And Procedure >> DTC P1875: 4L Switch Circuit Malfunction (Open) >> DTC Confirmation Procedure
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DTC Confirmation Procedure

  1. Connect scan tool to DLC with ignition switch OFF.
  2. Clear DTCs in TCM and ECM memories by using scan tool.
  3. Start engine and transfer position switch to "4L" position.
  4. Keep engine running at idle speed for 10 seconds or more with select lever "D" range.
  5. Start vehicle and increase vehicle speed to about 50 km/h (31 mile/h) in "4L" position for 2 minutes.
  6. Stop vehicle.
  7. Check DTC, pending DTC and freeze-frame data.
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