Entire Combination Meter does not Operate [11/2023 - ]: Procedure

1. Choose the model to be inspected.

   Result

   Result	Proceed to
   w/ Stop and Start System	A
   w/o Stop and Start System	B

Result: 

B 

See step  4

Result: 

A 

See step  2

1. Disconnect the H21 combination meter assembly connector.
2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   H21-39 (IG+) - Body ground	Ignition switch off	Below 1 V
   	Ignition switch ON	10.5 to 16 V

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO BACKUP BOOST CONVERTER CIRCUIT. Refer to  Backup Boost Converter Circuit [11/2023 - ] 

Result: 

OK 

See step  3

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

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   H21-40 (B) - Body ground	Always	11 to 14 V

   Result

   Proceed to
   OK
   NG

Result: 

OK 

See step  5

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

1. Disconnect the H21 combination meter assembly connector.
2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   H21-39 (IG+) - Body ground	Ignition switch off	Below 1 V
   	Ignition switch ON	11 to 14 V
   H21-40 (B) - Body ground	Ignition switch off*1	11 to 14 V
   	Always*2	11 to 14 V

   1. *1: for HV Model
   2. *2: for Gasoline Model

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  5

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H21-2 (EP) - Body ground	Always	Below 1 Ω
   H21-21 (ES) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [12/2019 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR