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DTC C2198/98: Initialization Switch (for Test Mode DTC) [09/2014 - ]: Procedure

  1. INSPECT TIRE PRESSURE WARNING RESET SWITCH 
    1. Disconnect the tire pressure warning reset switch connector.
      GTY321006Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      1 (INT) - 2 (E) On Below 1 Ω
      Off 10 kΩ or higher
      TEXT IN ILLUSTRATION

      *a Component without harness connected
      (Tire Pressure Warning Reset Switch)
      *b On
      *c Off

    NG → See step   3 

    OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (RESET SWITCH - TIRE PRESSURE WARNING ECU AND RECEIVER) 
    1. Disconnect the I186 tire pressure warning reset switch connector and O25, O33 or N41 tire pressure warning ECU and receiver connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      O25-3 (CLSW) - I186-1 (INT)*1
      O33-3 (CLSW) - I186-1 (INT)*2
      N41-3 (CLSW) - I186-1 (INT)*3
      Always Below 1 Ω
      O25-3 (CLSW) - Body ground*1
      O33-3 (CLSW) - Body ground*2
      N41-3 (CLSW) - Body ground*3
      Always 10 kΩ or higher
      I186-2 (E) - Body ground Always Below 1 Ω
      • *1: w/o Intuitive Parking Assist System with Smart Key System
      • *2: w/o Intuitive Parking Assist System without Smart Key System
      • *3: w/ Intuitive Parking Assist System

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   4 

  3. REPLACE TIRE PRESSURE WARNING RESET SWITCH. Refer to  REMOVAL [09/2014 - ] 
  4. REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER. Refer to  REMOVAL [09/2014 - ]