Inspection Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to the ON position
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Combination Meter / Active Test.
5. Check the operation by referring to the values in the table below.

   Combination Meter: 

   CONTROL RANGE CHART
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Fuel Meter Operation	Fuel receiver gauge	EMPTY, 1/2, FULL	-

   OK: Needle indication is normal. 

NG: REPLACE COMBINATION METER ASSEMBLY 

OK: Go to next step. 

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to the ON position.
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Combination Meter / Data List.
5. Check the values by referring to the values in the table below.

   Combination Meter: 

   MEASUREMENT ITEM/RANGE CHART
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Fuel Input	Fuel input signal Min.: 0, Max.: 127.5	Fuel gauge indicates (F): 35 Fuel gauge indicates (3/4): 85 Fuel gauge indicates (1/2): 145 Fuel gauge indicates (1/4): 186 Fuel gauge indicates (E): 205	-

   OK: Fuel value signal displayed on the tester is almost the same as needle indication. 

NG: REPLACE COMBINATION METER ASSEMBLY 

OK: Go to next step. 

1. Disconnect the fuel tank wire BK1 connector.
2. Shorten the terminals 3 (FE) and 4 (FS) on wire harness side.
3. Disconnect the battery negative (-) terminal, then reconnect.
4. Turn the ignition switch to the ON position.

   Standard: 

   Fuel receiver gauge indicates F or more. 

   Fig 1: Identifying Fuel Tank Wire BK1 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to step  6

NG: Go to next step. 

1. Disconnect the C9 connector and fuel tank wire BK1 connector.
2. Measure the resistance according to the value (s) in the table below.

   Standard Resistance 

   STANDARD RESISTANCE
   
   

   Tester Connection	Condition	Specified Condition
   C9-2 (FE) - BK1-3 (FE)	Always	Below 1 Ω
   C9-2 (FE) - Body ground	Always	10 kΩ or higher
   C9-19 (FUEL SENDER) -BK1-4 (FS)	Always	Below 1 Ω
   C9-19 (FUEL SENDER) - Body ground	Always	10 kΩ or higher

Fig 2: Identifying C9 Connector And BK1 Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step. 

NG: REPLACE HYBRID VEHICLE CONTROL ECU 

1. Disconnect the fuel tank wire BK1 connector, and F16 connector from the fuel sender gauge assembly.
2. Measure the resistance according to the value (s) in the table below.

   Standard Resistance 

   STANDARD RESISTANCE
   
   

   Tester Connection	Condition	Specified Condition
   F16-2 (FS) - BK1-4 (FS)	Always	Below 1 Ω
   F16-3 (FE) - BK1-3 (FE)	Always	Below 1 Ω
   BK1-4 (FS) - Body ground	Always	10 kΩ or higher

Fig 3: Identifying Fuel Tank Wire BK1 Connector And F16 Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE FUEL TANK WIRE 

OK: Go to next step. 

1. Remove the fuel sender gauge assembly.
2. Check the operation of the float moving smoothly between F and E.
3. Disconnect the fuel sender gauge connector.
4. Measure the resistance between the terminals 1 (FE) and 2 (FS) of connector according to the value (s) in the table below.

   OK 

   RESISTANCE REFERENCE
   
   

   Float Level	Resistance (Q)
   F	13.5 to 16.5
   E	405.5 to 414.5

Fig 4: Checking Operation Of Float Moving Smoothly Between F And E
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE FUEL SENDER GAUGE ASSEMBLY 

OK: END