Inspection Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to the ON position and turn the Techstream on.
3. Enter the following menus: Powertrain/Engine and ECT/Active Test/Control the Fuel Pump/Speed.
4. Check whether operating sounds can be heard while operating the relay using the Techstream.

   OK: 

   Operating sounds can be heard from relay. 

OK: Go to step  7

NG: Go to Next Step 

NG: REPAIR OR REPLACE POWER SOURCE CIRCUIT 

OK: Go to Next Step 

1. Disconnect the 1A, 1B, 1D and 1E instrument panel junction block connectors.
2. Measure the resistance according to the value (s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Specified Condition
   1B (11) - 1A (8)	10 kΩ or higher
   1B (11) - 1A (8)	Below 1 Ω (when battery voltage is applied to terminals 1E (5) and 1D (1))

3. Reconnect the instrument panel junction block connectors.

NG: REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 

OK: Go to Next Step 

Fig 1: Inspecting C/OPN Relay

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the E4 and E8 ECM connectors.
2. Turn the ignition switch to the ON position.
3. Measure the voltage according to the value (s) in the table below.

   Standard voltage 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Specified Condition
   FC (E4-25) - E1 (E8-3)	9 to 14 V

4. Reconnect the ECM connectors.

OK: REPLACE ECM  (See REMOVAL )

NG: Go to Next Step 

Fig 2: Disconnecting The E4 And E8 ECM Connectors

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the 15 ignition switch connector.
   Fig 3: Identifying 15 Ignition Switch Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the 1F instrument panel junction block connector.
3. Measure the resistance according to the value (s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Specified Condition
   IG2 (I5-6) - Instrument panel junction block (1F-4)	Below 1 Ω
   IG2 (I5-6) or Instrument panel junction block (1F-4) -Body ground	10 kΩ or higher

4. Reconnect the ignition switch connector.
5. Reconnect the instrument panel junction block connector.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to Next Step 

Fig 4: Disconnecting The 1F Instrument Panel Junction Block Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the E4 ECM connector.
   Fig 5: Disconnecting The E4 ECM Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the 1E instrument panel junction block connector.
3. Measure the resistance according to the value (s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Specified Condition
   FC (E4-25) - Instrument panel junction block (1E-5)	Below 1 Ω
   FC (E4-25) or Instrument panel junction block (1 E-5) -Body ground	10 kΩ or higher

4. Reconnect the ECM connector.
5. Reconnect the instrument panel junction block connector.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE ECM  (See REMOVAL )

Fig 6: Disconnecting The 1E Instrument Panel Junction Block Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Inspect the fuel pump (See ON-VEHICLE INSPECTION ).

NG: REPLACE FUEL PUMP  (See REMOVAL )

OK: Go to Next Step 

1. Disconnect the 1A instrument panel junction block connector.
   Fig 7: Disconnecting The 1A Instrument Panel Junction Block Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the F9 fuel pump connector.
3. Measure the resistance according to the value (s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Specified Condition
   Instrument panel junction block (1A-8) - Fuel pump (F9-4)	Below 1 Ω
   Fuel pump (F9-S) - Body ground	Below 1 Ω
   Instrument panel junction block (1A-8) or Fuel pump (F9-4) - Body ground	10 kΩ or higher

4. Reconnect the instrument panel junction block connector.
5. Reconnect the fuel pump connector.

Fig 8: Identifying F9 Fuel Pump Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: CHECK AND REPAIR HARNESS AND CONNECTOR (EFI RELAY - C/OPN RELAY)