DTC B1500: Fuel Sender Open Detected: Procedure

1. Check for the DTC. Refer to DTC CHECK/CLEAR .
   RESULT
   
   

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

B → See step   10 

A: Go to next step 

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

   OK

   Needle indication is normal.

   COMBINATION METER:
   
   

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

NG → See step   11 

OK: Go to next step 

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

   OK

   Fuel value displayed on Techstream is almost same as needle indication

   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 sender input value	Unit: L

NG → See step   4 

OK → See step   12 

Fig 1: Measuring Fuel Sender Gauge Assembly

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Remove the fuel sender gauge (main). Refer to DISASSEMBLY .
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   13 

OK: Go to next step 

Fig 2: Inspecting Fuel Sender Gauge Assembly (Sub)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Remove the fuel sender gauge (sub). Refer to DISASSEMBLY .
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   14 

OK: Go to next step 

Fig 3: Identifying S61 Junction Block Connector And S11, R10 Gauge Connectors Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the S61 junction block connector.
2. Disconnect the S11 and R10 gauge connectors.
3. 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 

Fig 4: Identifying Terminals Of S11 And R10 Gauge Connectors

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the S11 and R10 gauge connectors.
2. 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 .

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 .

   OK

   Operation of the fuel sender gauge returns to normal.

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

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