Fuel Receiver Gauge Malfunction: Procedure

PERFORM ACTIVE TEST USING TECHSTREAM (FUEL METER OPERATION)

Connect the Techstream to the DLC3.
Turn the ignition switch to ON.
Turn the Techstream on.
Enter the following menus: Body Electrical / Combination Meter / Active Test.

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	Confirm that the vehicle is stopped while the engine is idling

Gauge indication is normal.

NG → See step 6

OK: Go to next step

READ VALUE USING TECHSTREAM (FUEL INPUT)

Connect the Techstream to the DLC3.
Turn the ignition switch to ON.
Turn the Techstream on.
Enter the following menus: Body Electrical / Combination Meter / Data List.

Check the values by referring to the table below.

for 2WD

COMBINATION METER

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Fuel Input	Fuel input signal / Min.: 0, Max.: 127.5	Fuel gauge indicates (E): 5.0 (L) Fuel gauge indicates (1/2): 25.0 (L) Fuel gauge indicates (F): 42.6 (L)	-

Fuel input signal displayed on the Techstream is almost the same as fuel gauge indication.

for 4WD

COMBINATION METER

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Fuel Input	Fuel input signal / Min.: 0, Max.: 127.5	Fuel gauge indicates (E): 5.5 (L) Fuel gauge indicates (1/2): 24.8 (L) Fuel gauge indicates (F): 43.9 (L)	-

Fuel input signal displayed on the Techstream is almost the same as fuel gauge indication.

NG → See step 6

OK: Go to next step

CHECK HARNESS AND CONNECTOR (COMBINATION METER - FUEL SENDER GAUGE ASSEMBLY)

Check the harness and connector (for 2WD).

Fig 1: Identifying Combination Meter Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect the L13 connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance

Tester Connection	Condition	Specified Condition
E55-25 (L) - L13-2 (FS)	Always	Below 1 Ω
E55-25 (L) - Body ground	Always	10 kΩ or higher
E55-10 (E) - L13-3 (FE)	Always	Below 1 Ω
E55-10 (E) - Body ground	Always	10 kΩ or higher

Check the harness and connector (for 4WD).

Fig 2: Identifying Fuel Sender Gauge Assembly Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect the L12 and L13 connectors.

Measure the resistance according to the value(s) in the table below.

Standard Resistance

Tester Connection	Condition	Specified Condition
E55-25 (L) - L13-2 (FS)	Always	Below 1 Ω
E55-25 (L) - Body ground	Always	10 kΩ or higher
L13-3 (FE) - L12-1 (FS)	Always	Below 1 Ω
L13-3 (FE) - Body ground	Always	10 kΩ or higher
E55-10 (E) - L12-2 (E)	Always	Below 1 Ω
E55-10 (E) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step

INSPECT FUEL SUCTION PUMP AND GAUGE

Remove the fuel suction pump and gauge.

Fig 3: Identifying Fuel Suction Pump And Gauge Connector Terminal
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance according to the value(s) in the table below.

Standard Resistance

Tester Connection	Condition	Specified Condition
2 (FS) - 2 (S)	Always	Below 1 Ω
3 (FE) - 1 (FE)	Always	Below 1 Ω

NG → REPLACE FUEL SUCTION PUMP AND GAUGE

OK: Go to next step

INSPECT FUEL SENDER GAUGE ASSEMBLY

Inspect the fuel sender gauge assembly (for 2WD).

Fig 4: Identifying Fuel Sender Gauge Assembly Connector Terminal

Remove the fuel sender gauge assembly.
Check that the float moves smoothly between E and F.

Measure the resistance according to the value(s) in the table below.

Standard Resistance

Tester Connection	Condition	Specified Condition
1 (FE) - 2 (S)	Float level is F (upper)	13.5 to 16.5 Ω
1 (FE) - 2 (S)	Float level is between F (upper) and E (lower)	13.5 to 414.5 Ω (Gradually changes)
1 (FE) - 2 (S)	Float level is E (lower)	405.5 to 414.5 Ω

Inspect the fuel sender gauge assembly (for 4WD).

Fig 5: Identifying Fuel Sender Gauge Assembly (Main And Sub)

Remove the fuel sender gauge assembly.
Check that the float moves smoothly between E and F.

Measure the resistance according to the value(s) in the table below.

Standard Resistance (Main)

Tester Connection	Condition	Specified Condition
1 (FE) - 2 (S)	Float level is F (upper)	6.5 to 8.5 Ω
1 (FE) - 2 (S)	Float level is between F (upper) and E (lower)	6.5 to 245.7 Ω (Gradually changes)
1 (FE) - 2 (S)	Float level is E (lower)	240.7 to 245.7 Ω

Standard Resistance (Sub)

Tester Connection	Condition	Specified Condition
1 (FS) - 2 (E)	Float level is F (upper)	6.5 to 8.5 Ω
1 (FS) - 2 (E)	Float level is between F (upper) and E (lower)	6.5 to 168.8 Ω (Gradually changes)
1 (FS) - 2 (E)	Float level is E (lower)	164.8 to 168.8 Ω

Result

Result	Proceed to
OK	A
NG (for 2AZ-FE)	B
NG (for 2ZR-FE)	C

B → See step 7

C → See step 8

A → See step 6

REPLACE COMBINATION METER. Refer to REMOVAL - Step 4
REPLACE FUEL SENDER GAUGE ASSEMBLY (for 2AZ-FE). Refer to REMOVAL
REPLACE FUEL SENDER GAUGE ASSEMBLY (for 2ZR-FE). Refer to REMOVAL