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If only the fuel gauge does not
operate, the fuel tank pump and gauge unit assembly, fuel
tank gauge unit, combination meter, wiring harness or
connector(s) may be defective.
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- Damaged harness wires and connectors
- Malfunction of fuel tank gauge unit
- Malfunction of fuel tank pump and gauge unit
assembly
- Malfunction of combination meter
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![](../../../img/54/AC313425AF00ENG.png)
![](../../../img/54/AC313427AF00ENG.png)
![](../../../img/54/AC313429AH00ENG.png)
![](../../../img/54/AC313392AP00ENG.png)
![](../../../img/54/AC313406AP00ENG.png)
![](../../../img/54/AC313416AU00ENG.png)
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Q.
Is fuel tank pump and gauge unit assembly connector C-02
in good condition?
Go to Step
2.
Repair the
connector, and then go to Step 11.
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![](../../../img/54/AC313425AF00ENG.png)
![](../../../img/54/AC313427AF00ENG.png)
![](../../../img/54/AC313429AH00ENG.png)
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(1)Disconnect fuel tank pump and
gauge unit assembly connector D-15.
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![](../../../img/54/AC302533AB00ENG.png)
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(2)Use special tool MB991219 to
connect a test lamp (12 V - 3.4 W) between the wiring
harness connector terminals 1 and 2. (3)Turn the Ignition
switch to "ON" position. (4)Check if the test lamp
illuminates. OK: Illuminates
Q.
Is the check result satisfactory?
Go to Step
8.
Go to Step
3.
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![](../../../img/54/AC313425AF00ENG.png)
![](../../../img/54/AC313427AF00ENG.png)
![](../../../img/54/AC313429AH00ENG.png)
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(1)Disconnect fuel tank pump and
gauge unit assembly connector D-15, and measure at the
wiring harness side. (2)Turn the Ignition switch to
"LOCK" (OFF) position. (3)Disconnect the negative battery
terminal.
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![](../../../img/54/AC310506CM00ENG.png)
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(4)Measure the resistance value
between terminal 1 and earth. OK: Continuity
exists (2 Ω or less)
Q.
Is the check result normal?
Go to Step
5.
Go to Step
4.
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![](../../../img/54/AC313396AL00ENG.png)
![](../../../img/54/AC313406AS00ENG.png)
![](../../../img/54/AC313416AY00ENG.png)
![](../../../img/54/AC313425AG00ENG.png)
![](../../../img/54/AC313427AG00ENG.png)
![](../../../img/54/AC313429AJ00ENG.png)
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note |
Also check intermediate
connector D-28, C-16 for loose, corroded, or
damaged terminals, or terminals pushed back in
the connector. If intermediate connector D-28,
C-16 are damaged, repair or replace the
connector.
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![](../../../img/54/AC313425AF00ENG.png)
![](../../../img/54/AC313427AF00ENG.png)
![](../../../img/54/AC313429AH00ENG.png)
|
Q.
Is the wiring harness between fuel tank pump and gauge
unit assembly connector D-15 (terminal 1) and earth in
good condition?
Go to Step
11.
Repair the
harness, and then go to Step 11.
|
![](../../../img/54/AC313392AP00ENG.png)
![](../../../img/54/AC313406AP00ENG.png)
![](../../../img/54/AC313416AU00ENG.png)
![](../../../img/54/AC313425AH00ENG.png)
![](../../../img/54/AC313427AH00ENG.png)
![](../../../img/54/AC313429AK00ENG.png)
|
Q.
Is combination meter connector C-02 and fuel tank gauge
unit connector D-07 in good condition?
Go to Step
6.
Repair the
connector, and then go to Step 10.
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![](../../../img/54/AC313396AL00ENG.png)
![](../../../img/54/AC313406AS00ENG.png)
![](../../../img/54/AC313416AY00ENG.png)
![](../../../img/54/AC313425AG00ENG.png)
![](../../../img/54/AC313427AG00ENG.png)
![](../../../img/54/AC313429AJ00ENG.png)
|
note |
Also check intermediate
connectors C-16, D-28 for loose, corroded, or
damaged terminals, or terminals pushed back in
the connector. If intermediate connector C-16,
D-28 are damaged, repair or replace the
connector.
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|
![](../../../img/54/AC313392AP00ENG.png)
![](../../../img/54/AC313406AP00ENG.png)
![](../../../img/54/AC313416AU00ENG.png)
![](../../../img/54/AC313425AH00ENG.png)
![](../../../img/54/AC313427AH00ENG.png)
![](../../../img/54/AC313429AK00ENG.png)
|
Q.
Is the wiring harness between combination meter
connector C-02 (terminal 31) and fuel tank gauge unit
connector D-07 (terminal 1) in good
condition?
Go to Step
7.
Repair the
harness, and then go to Step 10.
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![](../../../img/54/AC313425AI00ENG.png)
![](../../../img/54/AC313427AI00ENG.png)
![](../../../img/54/AC313429AL00ENG.png)
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Q.
Is the wiring harness between fuel tank gauge unit
connector D-07 (terminal 2) and fuel tank pump and gauge
unit assembly connector D-15 (terminal 2) in good
condition?
Go to Step
9.
Repair the
harness, and then go to Step 10.
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Item No.8A: Fuel gauge (target
value)
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OK: Fuel gauge and
M.U.T.-III displayed values agree with each
other.
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Q.
Is the check result normal?
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Check that the fuel gauge works
normally.
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Q.
Is the check result normal?
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The procedure is
complete.
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Replace fuel
tank pump and gauge unit assembly and then go to Step
10.
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Check that the fuel gauge works
normally.
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Q.
Is the check result normal?
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The procedure is
complete.
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Replace fuel
tank gauge unit and then go to Step 11.
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Check that the fuel gauge works
normally.
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Q.
Is the check result normal?
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The procedure is
complete.
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