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Home › Jeep › 2004 › Wrangler X, Standard › Repair and Diagnosis › Engine Performance › System › Powertrain Diagnostic Procedures › DRIVEABILITY - Gas › DTC P1899: P/N Switch Performance › Possible Causes

Possible Causes

  1. DRBIII(R) DISPLAYS P/N & D/R NOT IN CORRECT POSITION
  2. TRS T41 SENSE (P/N SENSE) CIRCUIT SHORTED TO GROUND
  3. TRS T41 (P/N SENSE) CIRCUIT OPEN]
  4. TRS (P/N SWITCH)
  5. PCM
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