DTC C2198/98: Initialization Switch (for Test Mode DTC): Procedure

1. Disconnect the tire pressure warning reset switch connector.
   Fig 1: Inspecting Tire Pressure Warning Reset Switch

   Courtesy 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 

1. Disconnect the tire pressure warning reset switch I137 connector and tire pressure warning ECU and receiver O25 or O33 connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   O25-3 (CLSW) - I137-1 (INT)*1 O33-3 (CLSW) - I137-1 (INT)*2	Always	Below 1 Ω
   O25-3 (CLSW) - Body ground*1 O33-3 (CLSW) - Body ground*2		10 kΩ or higher
   I137-2 (E) - Body ground		Below 1 Ω

   • *1: w/ Wireless Door Lock Control System
   • *2: w/o Wireless Door Lock Control System

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   4