Inspection Procedure

1. Remove the MPX-B1 and IG2 fuses from the passenger side J/B.
2. Remove the AM2 M-fuse, D/C CUT and IG2 MAIN fuses from the engine room No. 1 R/B.
3. Remove the IGN fuse from the engine room No. 2 R/B.
4. Measure the resistance of the fuse.

   Standard: Below 1 Ω 

NG: REPLACE FUSE 

OK: GO TO NEXT STEP 

1. Remove the IG2 relay from the engine room No. 1 R/B.
2. Measure the resistance of the relay.

   Standard: 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Specified Condition
   3 - 5	10 kΩ or higher
   3 - 5	Below 1 Ω (when battery voltage is applied to terminals 1 and 2)

   Fig 1: Identifying Relay Test terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE RELAY 

OK: GO TO NEXT STEP 

1. Disconnect the T13 ECU connector.
2. Measure the resistance and voltage of the wire harness side connector.

   Standard: 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   T13-1 (CPUB) - Body ground	Always	10 to 14 V
   T13-2 (IG2) - Body ground	Ignition switch OFF	0 V
   T13-2 (IG2) - Body ground	Ignition switch ON	10 to 14 V
   T13-14 (GND) - Body ground	Always	Below 1 Ω

   Fig 2: Identifying T13 Transponder Key ECU Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: REPLACE TRANSPONDER KEY ECU ASSY