Power Source Circuit [11/2022 - ]: Procedure

1. Disconnect the I4 combination meter assembly connector.
2. Measure the voltage according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Combination Meter Assembly)

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   I4-5 (B) - Body ground	Ignition switch off	11 to 14 V
   I4-6 (IG+) - Body ground	Ignition switch off	Below 1 V
   I4-6 (IG+) - Body ground	Ignition switch ON	11 to 14 V

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  2

1. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   I4-1 (EP) - Body ground	Always	Below 1 Ω
   I4-2 (ES) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY 

Refer to REMOVAL [11/2022 - 09/2024] , or refer to REMOVAL [09/2024 - ]

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR