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If only the fuel gauge does not operate, the fuel gauge unit, the combination meter, wiring
harness or connector(s) may be defective.
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- Damaged harness wires and connectors
- Malfunction of the fuel gauge unit
- Malfunction of combination meter
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(1)Disconnect F-09 fuel gauge unit connector.
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(2)Connect a test lamp (12 V -
3.4 W) via special tool test harness (MB991219) between
the wiring harness connector terminals 1 and 2. (3)Turn the ignition switch to the "ON" position.
Q.
Does the test lamp illuminate?
Go to Step 7.
Go to Step 2.
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Q.
Is combination meter connector C-113 and fuel gauge unit connector F-09 in good condition?
Go to Step 3.
Repair or replace the damaged component(s).
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note |
Prior to the wiring harness inspection, check intermediate connector C-30 and repair if
necessary.
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Q.
Is the wiring harness between combination meter connector C-113 (terminal 22) and
fuel gauge unit connector F-09 (terminal 1) in good condition?
Go to Step 4.
Repair or replace the damaged component(s). Then go to Step 4.
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Q.
Is the fuel gauge normal?
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The procedure is complete. (If no malfunctions are found in all steps, an intermittent
malfunction is suspected. Refer to GROUP 00 /
How to Cope with Intermittent Malfunction ).
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Q.
Is the wiring harness between fuel gauge unit connector F-09 (terminal 2) and earth
in good condition?
Go to Step 6.
Repair or replace the damaged component(s).
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Q.
Is the fuel gauge normal?
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The procedure is complete. (If no malfunctions are found in all steps, an intermittent
malfunction is suspected. Refer to GROUP 00 /
How to Cope with Intermittent Malfunction ).
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Carry out the troubleshooting again.
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(1)Disconnect F-09 fuel gauge unit connector.
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(2)Connect a test lamp (12 V -
3.4 W) via special tool test harness (MB991219) between
the wiring harness connector terminals 1 and 2. (3)Turn the ignition switch to the "ON" position.
Q.
Does the fuel gauge in the combination meter fluctuate about half of it full scale?
Replace the fuel gauge unit.
Go to Step 8.
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Q.
Is the fuel gauge normal?
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The procedure is complete. (If no malfunctions are found in all steps, an intermittent
malfunction is suspected. Refer to GROUP 00 /
How to Cope with Intermittent Malfunction ).
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Replace combination meter.
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