Fuel Injector Circuit [05/2013 - 01/2014]: Procedure

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the fuel injector connector.
2. Turn the ignition switch to ON.
3. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Cylinder	Tester Connection	Switch Condition	Specified Condition
   No. 1	B10-1 - Ground	Ignition switch ON	11 to 14 V
   No. 2	B11-1 - Ground	Ignition switch ON	11 to 14 V
   No. 3	B12-1 - Ground	Ignition switch ON	11 to 14 V
   No. 4	B13-1 - Ground	Ignition switch ON	11 to 14 V

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Fuel Injector Assembly)

NG → See step   4 

OK: Go to next step 

1. Inspect the fuel injector assembly. Refer to INSPECTION [05/2013 - ] .

   HINT: 

   Perform "Inspection After Repair" after replacing the fuel injector assembly. Refer to INITIALIZATION [05/2013 - ] .

NG → See step   5 

OK: Go to next step 

1. Disconnect the fuel injector connector.
2. Disconnect the ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Cylinder	Tester Connection	Condition	Specified Condition
   No. 1	B10-2 - Body ground	Always	10 kΩ or higher
   	B10-2 - B30-85 (#10)	Always	Below 1 Ω
   No. 2	B11-2 - Ground	Always	10 kΩ or higher
   	B11-2 - B30-84 (#20)	Always	Below 1 Ω
   No. 3	B12-2 - Ground	Always	10 kΩ or higher
   	B12-2 - B30-83 (#30)	Always	Below 1 Ω
   No. 4	B13-2 - Ground	Always	10 kΩ or higher
   	B13-2 - B30-82 (#40)	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   6 

1. Inspect the integration relay (IG2). Refer to ON-VEHICLE INSPECTION [05/2013 - ] - Step 1 .

NG → REPLACE INTEGRATION RELAY 

OK → REPAIR OR REPLACE HARNESS OR CONNECTOR (INTEGRATION RELAY - FUEL INJECTOR)