Inspection Procedure

HINT:

Start the inspection from step 1 when using the hand-held tester and start from step  3 when not using handheld tester.

1. PERFORM ACTIVE TEST BY HAND-HELD TESTER 
   1. Operate the hand-held tester according to the steps on the display and perform the "ACTIVE TEST".

      MTR (Combination meter): 

      ACTIVE TEST PERFORM BY HAND-HELD TESTER (MTR (COMBINATION METER))
      
      

      Item	Test Details	Diagnostic Note
      FUEL GAUGE	EMPTY, 1/2, FULL	-

   1. NG: REPLACE COMBINATION METER ASSY (See  OVERHAUL  ) 
   2. OK: Go to next step 
2. READ VALUE OF HAND-HELD TESTER 
   1. Operate the hand-held tester according to the steps on the display and select the "DATA LIST".

      MTR (Combination meter): 

      VALUE OF HAND-HELD TESTER (MTR (COMBINATION METER))
      
      

      Item	Measurement Item/ Range (Display)	Normal Condition	Diagnostic Note
      FUEL GAUGE	Fuel gauge indicates "F" Fuel gauge indicates "3/4" Fuel gauge indicates "1/2" Fuel gauge indicates "1/4" Fuel gauge indicates "E" (Fuel input/ Min.: 0, Max.: 255)	Fuel gauge indicates "F" 48 (Ω) Fuel gauge indicates "3/4" 93 (Ω) Fuel gauge indicates "1/2" 148 (Ω) Fuel gauge indicates "1/4" 188 (Ω) Fuel gauge indicates "E" 206 (Ω)	-

   1. OK: REPLACE COMBINATION METER ASSY (See  OVERHAUL  ) 
   2. NG: Go to next step 
3. INSPECT FUEL SENDER GAUGE ASSY 
   1. Remove the fuel sender gauge assy.
   2. Check that the float position is between E and F and measure resistance between the terminals 2 and 3 of connector.
   3. Measure the resistance according to the value(s) in FUEL SENDER GAUGE ASSY TERMINALS RESISTANCE  .

      Standard: 

      FUEL SENDER GAUGE ASSY TERMINALS RESISTANCE
      
      

      Float level	Float position mm (in.)	Resistance (Ω)
      F	81.5(3.20) +/- 3(0.12)	4.0 +/- 1
      12	5.2(0.20) +/- 3(0.12)	59 +/- 3
      E	102.2(4.00) +/- 3(0.12)	110.0 +/- 1

      Fig 1: Identifying Float Position Between E And F

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 2: Identifying Fuel Sender Gauge Assy Connectors

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: REPLACE FUEL SENDER GAUGE ASSY 
   2. OK: Go to next step 
4. CHECK HARNESS OR CONNECTOR (BETWEEN FUEL SENDER GAUGE AND COMBINATION METER ASSY) (See  HOW TO PROCEED WITH TROUBLESHOOTING  ) 
   1. Disconnect the F16, C9 connectors.
   2. Measure the resistance according to the value(s) in FUEL SENDER GAUGE AND COMBINATION METER ASSY TERMINALS RESISTANCE  .

      Standard: 

      FUEL SENDER GAUGE AND COMBINATION METER ASSY TERMINALS RESISTANCE
      
      

      Tester Connection	Specified Condition
      C9-19 - F16-2	Below 1 Ω
      C9-2 - F16-3	Below 1 Ω
      C9-19 - Body ground	10 kΩ or higher
      C9-2 - Body ground	10 kΩ or higher

      Fig 3: Disconnecting Combination Meter Assy Connector C9

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
   2. OK: REPLACE COMBINATION METER ASSY