DTC B1500: Fuel Sender Open Detected: Procedure

1. Check for DTC. Refer to DIAGNOSIS SYSTEM [09/2012 - ] .
   RESULT
   
   

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

B → See step   11 

A: Go to next step 

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.

NG → See step   12 

OK: Go to next step 

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, Max.: 127.5	Fuel sender input value	Unit: L

   OK

   Fuel value displayed on Techstream is almost same as needle indication

NG → See step   4 

OK → See step   13 

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Remove the fuel sender gauge (main). Refer to DISASSEMBLY [09/2012 - ] .
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

NG → See step   14 

OK: Go to next step 

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Remove the fuel suction plate sub-assembly. Refer to DISASSEMBLY [09/2012 - ] .
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

NG → See step   16 

OK: Go to next step 

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Remove the fuel sender gauge (sub). Refer to DISASSEMBLY [09/2012 - ] .
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

NG → See step   15 

OK: Go to next step 

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

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

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

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Temporarily replace the No. 1 meter ECU with a new one. Refer to DISASSEMBLY [09/2012 - ] .

NEXT: Go to next step 

1. Check that the operation of the fuel sender gauge in the meter returns to normal. Refer to OPERATION CHECK [09/2012 - ] .

   OK

   Operation of the fuel sender gauge returns to normal.

NG → REPLACE LUGGAGE ROOM JUNCTION BLOCK (REAR JUNCTION BLOCK ECU) 

OK → END (NO. 1 METER ECU IS DEFECTIVE)