Fuel Receiver Gauge Malfunction: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter following menus: Body Electrical / Combination Meter / Active Test.
5. Check the operation by referring to the table below.
   COMBINATION METER
   
   

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

   OK

   Fuel receiver gauge indication is normal.

NG → See step   7 

OK: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter following menus: Body Electrical / Combination Meter / Data List.
5. Check the values by referring to the table below.
   COMBINATION METER
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Fuel Input	Fuel input signal/Min.: 0, Max.: 127.5 (G)	10th segment comes on: 39.6 to 45.0	-
   		9th segment comes on: 35.7 to 39.6
   		8th segment comes on: 31.8 to 35.7
   		7th segment comes on: 27.9 to 31.8
   		6th segment comes on: 24.0 to 27.9
   		5th segment comes on: 20.1 to 24.0
   		4th segment comes on: 16.2 to 20.1
   		3rd segment comes on: 12.3 to 16.2
   		2nd segment comes on: 8.4 to 12.3
   		1st segment comes on: 6.1 to 8.4

   Result

   Result	Proceed to
   Fuel level displayed on the Techstream is almost the same as fuel receiver gauge indication.	A
   Fuel level displayed on the Techstream differs from the fuel receiver gauge indication.	B

B → See step   8 

A: Go to next step 

1. Disconnect the L27 combination meter assembly connector.
2. Disconnect the R11 fuel suction tube with pump and gauge assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   L27-14 (L) - R11-2 (FS)	Always	Below 1 Ω
   L27-14 (L) - Body ground	Always	10 kΩ or higher
   L27-15 (ES 2) - R11-3 (FE)	Always	Below 1 Ω
   L27-15 (ES 2) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Remove the fuel sender gauge assembly. Refer to REMOVAL .
   Fig 1: Inspecting Fuel Sender Gauge Assembly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check that the float moves smoothly between F and E.
3. 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)	13.5 to 16.5 Ω
   1 - 2	Float level is between F (upper) and E (lower)	13.5 to 414.5 Ω (Gradually changes)
   1 - 2	Float level is E (lower)	405.5 to 414.5 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Fuel Sender Gauge Assembly)

NG → See step   9 

OK: Go to next step 

1. Replace the meter circuit plate with a new or a known good one. Refer to DISASSEMBLY .

   OK

   The operation of the fuel receiver gauge returns to normal.

NG → See step   6 

OK → END 

1. Replace the No. 4 meter circuit plate with a new or a known good one. Refer to DISASSEMBLY .

   OK

   There is no deformation.

NG → See step   8 

OK → END