LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Jeep >> 2004 >> Wrangler Sport, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Powertrain Diagnostic Procedures >> DRIVEABILITY - Gas >> DTC P1899: P/N Switch Performance >> Possible Causes
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

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
scientia non olet · About LEMON Manuals