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Home >> Suzuki >> 2009 >> XL7 Luxury, AWD >> Repair and Diagnosis >> Transmission >> Automatic Transmission >> Diagnostic Information and Procedures >> DTC P1684-P1686: Transmission Control Module (TCM) Power Up Temperature Sensor >> Circuit/System Verification
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Circuit/System Verification

  1. Ignition ON, clear the DTCs with a scan tool.
  2. Operate the vehicle within the Conditions for Running and Setting the DTC. The DTCs should not set.
    • If a DTC sets, replace the control solenoid (w/body and TCM) valve assembly.
  3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
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