Code No.B1201 Trouble of fuel information
|
COMMENTS ON TROUBLE SYMPTOM
|
|
If only the fuel gauge does not operate, the
fuel tank gauge unit, combination meter, wiring harness or connector(s) may
be defective.
|
|
- Damaged harness wires and connectors
- Malfunction of fuel tank gauge unit
- Malfunction of combination meter
|
|
STEP 1. Connector check: E-15 fuel tank gauge unit
connector.
|
|
Q.
Is the check result normal?
|
|
Go to Step 2.
|
|
|
|
Repair
the connector.
|
|
|
|
STEP 2. Check the fuel gauge circuit.
|
|
(1)Disconnect E-15 fuel tank gauge unit connector.
|
|
(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 6.
|
|
|
|
Go to Step 3.
|
|
|
|
STEP 3. Connector check: D-02 combination meter
connector.
|
|
Q.
Is the check result normal?
|
|
Go to Step 4.
|
|
|
|
Repair
the connector.
|
|
|
|
STEP 4. Check the wiring harness between D-02 combination meter
connector terminal No. 40 and 49 and E-15 fuel gauge unit connector
terminal No. 2 and 1.
|
|
note |
Prior to the wiring harness inspection, check
intermediate connectors D-221 and E-09, and repair if
necessary.
|
|
|
Q.
Is the check result normal?
|
|
Go to Step 5.
|
|
|
|
Repair
the harness.
|
|
|
|
STEP 5. M.U.T.-III data list
|
|
- Item No.7: Fuel gauge (Target)
|
|
OK: Fuel gauge and M.U.T.-III
displayed values agree with each other.
|
|
Q.
Is the check result normal?
|
|
Go to Step 7.
|
|
|
|
Go to Step 6.
|
|
|
|
STEP 6. Retest the system.
|
|
Check that the fuel gauge works
normally.
|
|
Q.
Is the check result normal?
|
|
The
procedure is complete.
|
|
|
|
Replace the fuel tank gauge unit
and then go to Step 7.
|
|
|
|
STEP 7. Retest the system.
|
|
Check that the fuel gauge works
normally.
|
|
Q.
Is the check result normal?
|
|
The
procedure is complete.
|
|
|
|
Replace the combination
meter.
|
|
|