OBD Guide

P1899

Park/Neutral Switch Circuit Conditions

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Engine won't start
  • Incorrect operation of reversing lights
  • Check Engine Light Is On
  • The car can start while in gear
  • Gear shifting problems

Causes

  • Faulty park/neutral switch
  • Open or short circuit in the circuit
  • Poor contact in connectors
  • Wiring harness damage
  • Problems with the engine control unit

How to Fix

  1. Check the condition of the P/N switch
  2. Inspect wiring and connectors for damage
  3. Check the resistance of the switch with a multimeter
  4. Clean switch contacts
  5. If necessary, replace the switch

Related codes

Error P1899 by Vehicle Brand