Inspection Procedure

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

   Standard Voltage 

   STANDARD VOLTAGE
   
   

   Cylinder	Tester Connection	Switch Condition	Specified Condition
   No. 1	d1-2 - Ground	Ignition switch ON	11 to 14 V
   No. 2	c1-2 - Ground	Ignition switch ON	11 to 14 V
   No. 3	d2-2 - Ground	Ignition switch ON	11 to 14 V
   No. 4	c2-2 - Ground	Ignition switch ON	11 to 14 V
   No. 5	d3-2 - Ground	Ignition switch ON	11 to 14 V
   No. 6	c3-2 - Ground	Ignition switch ON	11 to 14 V
   No. 7	d4-2 - Ground	Ignition switch ON	11 to 14 V
   No. 8	c4-2 - Ground	Ignition switch ON	11 to 14 V

NG:  Go to step  4

Fig 1: Identifying Injector Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step. 

1. Inspect the injector (See INSPECTION ).

NG: REPLACE INJECTOR ASSEMBLY  (See REMOVAL )

OK: Go to Next Step. 

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

   Standard Resistance 

   STANDARD RESISTANCE
   
   

   Cylinder	Tester Connection	Condition	Specified Condition
   No. 1	d1-1 - Body ground	Always	10 kΩ or higher
   	dl-1 - D56-86 (#10)	Always	Below 1 Ω
   No. 2	c1-1 - Ground	Always	10 kΩ or higher
   	c1-1 - D56-109 (#20)	Always	Below 1 Ω
   No. 3	d2-1 - Ground	Always	10 kΩ or higher
   	d2-1 - D56-85 (#30)	Always	Below 1 Ω
   No. 4	c2-1 - Ground	Always	10 kΩ or higher
   	c2-1 - D56-108 (#40)	Always	Below 1 Ω
   No. 5	d3-1 - Ground	Always	10 kΩ or higher
   	d3-1 - D56-84 (#50)	Always	Below 1 Ω
   No. 6	c3-1 - Ground	Always	10 kΩ or higher
   	c3-1 - D56-107 (#60)	Always	Below 1 Ω
   No. 7	d4-1 - Ground	Always	10 kΩ or higher
   	d4-1 - D56-83 (#70)	Always	Below 1 Ω
   No. 8	c4-1 - Ground	Always	10 kΩ or higher
   	c4-1 - D56-106 (#80)	Always	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 2: Identifying ECM And Injector Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: REPLACE ECM  (See REMOVAL  )

1. Remove the INJ fuse and IG2 MAIN fuse from the engine room relay block.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   STANDARD RESISTANCE
   
   

   Tester Connection	Condition	Specified Condition
   INJ fuse	Always	Below 1 Ω
   IG2 fuse	Always	Below 1 Ω

NG: CHECK FOR SHORT IN ALL HARNESSES AND CONNECTORS CONNECTED TO FUSE AND REPLACE FUSE 

Fig 3: Identifying INJ Fuse And IG2 MAIN Fuse

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step. 

1. Inspect the integration relay (See ON-VEHICLE INSPECTION  ).

NG: REPLACE INTEGRATION RELAY 

OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (INTEGRATION RELAY - INJECTOR ASSEMBLY)