Inspection Procedure

1. Remove the D/C CUT and MPX-B fuses from the engine room relay block and junction block No 1
2. Measure the resistance according to the value (s) in the table below

   Standard Resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   D/C CUT fuse	Always	Below 1 Ω
   MPX-B fuse	Always	Below 1 Ω

NG: REPLACE FUSE 

OK: Go to next Step 

1. Install the D/C CUT and MPX-B fuses to the engine room relay block and junction block No. 1
2. Disconnect the RK cowl side junction block RH connector.
3. Measure the voltage according to the value (s) in the table below

   Standard Voltage 

   VOLTAGE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   RK-5 (+B) - Body ground	Always	11 to 14 V

Fig 1: Identifying Cowl Side Junction Block
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next Step 

1. Disconnect the RD and RA cowl side junction block RH connectors.
2. Measure the resistance according to the value (s) in the table below

   Standard Resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   RD-7 (E) - Body ground	Always	Below 1 Ω
   RA-5 (-S) - Body ground	Always

Fig 2: Identifying RD And RA Cowl Side Junction Block RH Connectors
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE  (See PROBLEM SYMPTOMS TABLE  )