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

1. Check for DTC (Refer to DIAGNOSIS SYSTEM [09/2015 - ] ).
   RESULT
   
   

   Result	Proceed to
   CAN communication system DTC is not output	A
   CAN communication system DTC is output	B

Result:  B

B 

Go to CAN COMMUNICATION SYSTEM 

(Refer to PRECAUTION [09/2015 - ] )

Result:  A

A 

See step  2

1. Operate the Techstream according to the steps on the display and select "Active Test".
   COMBINATION METER
   
   

   Tester Display	Test Part	Control Range
   Fuel Meter Operation	Fuel receiver gauge	Empty, 1/2 or Full

   OK

   Needle indication is normal.

Result:  NG

NG 

REPLACE NO. 1 METER ECU 

(Refer to DISASSEMBLY [09/2015 - ] )

Result:  OK

OK 

See step  3

1. Operate the Techstream according to the display and select the "Data List".
   COMBINATION METER
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Fuel Input	Fuel sender gauge (main) input/Min.: 0 (0), Max.: 127.5 (33.7)	Fuel sender input value	Unit: L (G)

   OK

   Fuel value displayed on Techstream is almost same as needle indication

Result:  OK

OK 

REPLACE NO. 1 METER ECU 

(Refer to DISASSEMBLY [09/2015 - ] )

Result:  NG

NG 

See step  4

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Remove the fuel sender gauge (main) (Refer to DISASSEMBLY [09/2015 - ] ).
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   1 - 2	Float level is F (upper)	6.5 to 8.5 Ω
   	Between float level is F (upper) and E (lower)	91.0 to 102.2 Ω
   	Float level is E (lower)	184.8 to 188.8 Ω

Result:  NG

NG 

REPLACE FUEL SENDER GAUGE ASSEMBLY (MAIN) 

(Refer to DISASSEMBLY [09/2015 - ] )

Result:  OK

OK 

See step  5

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Remove the fuel suction plate sub-assembly (Refer to DISASSEMBLY [09/2015 - ] ).
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   A-2 - B-2	Always	Below 1 Ω
   A-3 - B-1

Result:  NG

NG 

REPLACE FUEL SUCTION PLATE SUB-ASSEMBLY 

(Refer to DISASSEMBLY [09/2015 - ] )

Result:  OK

OK 

See step  6

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Remove the fuel sender gauge (sub) (Refer to DISASSEMBLY [09/2015 - ] ).
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   1 - 2	Float level is F (upper)	6.5 to 8.5 Ω
   	Between float level is F (upper) and E (lower)	112.7 to 125.7 Ω
   	Float level is E (lower)	220.7 to 225.7 Ω

Result:  NG

NG 

REPLACE FUEL SENDER GAUGE ASSEMBLY (SUB) 

(Refer to DISASSEMBLY [09/2015 - ] )

Result:  OK

OK 

See step  7

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the S61 junction block connector.
2. Disconnect the S11 suction plate connector.
3. Disconnect the R10 gauge connector.
4. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connector	Condition	Specified Condition
   S61-7 (FR) - S11-2	Always	Below 1 Ω
   S61-18 (FE) - R10-2
   S61-7 (FR) or S11-2 - Body ground	Always	10 kΩ or higher
   S61-18 (FE) or R10-2 - Body ground

Result:  NG

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result:  OK

OK 

See step  8

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the S11 suction plate connector.
2. Disconnect the R10 gauge connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   S11-3 - R10-1	Always	Below 1 Ω
   S11-3 or R10-1 - Body ground	Always	10 kΩ or higher

Result:  NG

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result:  OK

OK 

See step  9

1. Temporarily replace the No. 1 meter ECU with a new one (Refer to DISASSEMBLY [09/2015 - ] ).

Result:  NEXT

NEXT 

See step  10

1. Check that the operation of the fuel sender gauge in the meter returns to normal (Refer to OPERATION CHECK [09/2015 - ] ).

   OK

   Operation of the fuel sender gauge returns to normal.

Result:  OK

OK 

END (NO. 1 METER ECU IS DEFECTIVE) 

Result:  NG

NG 

REPLACE LUGGAGE ROOM JUNCTION BLOCK (REAR JUNCTION BLOCK ECU)