DTC B1500: Fuel Sender Open Detected [09/2015 - ]: Procedure

1. Operate the Techstream according to the display and select the Data List. Refer to DATA LIST / ACTIVE TEST [09/2015 - 08/2017] , or refer to DATA LIST / ACTIVE TEST [08/2017 - ] ).
   COMBINATION METER
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Fuel Input	Fuel sender gauge (main) input signal/Min.: 0, Max.: 127.5	Fuel receiver gauge indicates F: 83.7 L Fuel receiver gauge indicates 3/4: 66.5 L Fuel receiver gauge indicates 1/2: 49.5 L Fuel receiver gauge indicates 1/4: 31.2 L Fuel receiver gauge indicates E: 12.5 L	Unit: L

   OK

   Fuel amount value displayed on the Techstream is almost the same as needle indication.

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY 

Refer to REMOVAL [09/2015 - ] )

Result: 

NG 

See step  2

1. Disconnect the N120 combination meter assembly connector.
2. Disconnect the N1 fuel suction with pump and gauge tube assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   N120-33 (FR) - N1-3 (FR)	Always	Below 1 Ω
   N120-35 (FV) - N1-1 (FV)	Always	Below 1 Ω
   N120-17 (FE&B) - N1-2 (FE)	Always	Below 1 Ω
   N120-33 (FR) or N1-3 (FR) - Body ground	Always	10 kΩ or higher
   N120-35 (FV) or N1-1 (FV) - Body ground	Always	10 kΩ or higher
   N120-17 (FE&B) or N1-2 (FE) - Body ground	Always	10 kΩ or higher

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  3

1. Remove the fuel sender gauge assembly. Refer to REMOVAL [09/2015 - ] ).

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A-2 (FS) - B-2 (FS)	Always	Below 1 Ω
   A-3 (FE) - B-1 (FE)	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   * a	Component without harness connected (Fuel Suction with Pump and Gauge Tube Assembly)
   * b	Component without harness connected (Fuel Sender Gauge Assembly)
   *c	Connector A
   *d	Connector B

Result: 

NG 

REPLACE FUEL SUCTION WITH PUMP AND GAUGE TUBE ASSEMBLY 

Refer to REMOVAL [09/2015 - ] )

Result: 

OK 

See step  4

1. Remove the fuel sender gauge assembly. Refer to REMOVAL [09/2015 - ] ).
2. Inspect the fuel sender gauge assembly. Refer to PROCEDURE - Step 1 ).

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY 

Refer to REMOVAL [09/2015 - ] )

Result: 

NG 

REPLACE FUEL SENDER GAUGE ASSEMBLY 

Refer to REMOVAL [09/2015 - ] )