Mitsubishi Outlander GS45X. Manual — part 10
COMBINATION METER
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CHASSIS ELECTRICAL
54A-37
DTC B1201: Abnormal fuel information
Fuel Gauge Unit Circuit
INTERFACE
CIRCUIT
COMBINATION
METER
CPU
<FWD>
<AWD>
FUEL
LEVEL
SENSOR
(SUB)
FUEL
PUMP
MODULE
FUEL LEVEL
SENSOR
(MAIN)
COMBINATION METER
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CHASSIS ELECTRICAL
54A-38
CAUTION
Whenever the ECU is replaced, ensure that the communication circuit is normal.
.
TROUBLE JUDGMENT
With the ignition switch at the ON position and the
system voltage at 10
−16 volts (data from
ETACS-ECU), if the combination meter detects the
abnormal resistance of fuel level sensor circuit for 64
seconds continuously, DTC B1201 is stored.
.
TROUBLESHOOTING HINTS
• The fuel pump module [fuel level sensor (main)]
may be defective. <FWD, AWD>
• The fuel level sensor (sub) may be defective.
<AWD>
• The combination meter may be defective.
• The wiring harness or connectors may have
loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector
DIAGNOSIS
Required Special Tools:
• MB991223: Harness Set
• MB992006: Extra Fine Probe
• MB991958: Scan Tool (M.U.T.-III Sub Assembly)
• MB991824: Vehicles Communication Interface (V.C.I.)
• MB991827: M.U.T.-III USB Cable
• MB991910: M.U.T.-III Main Harness A (Vehicles with
CAN communication system)
STEP 1. Check the malfunctioning vehicle.
Q: Is the malfunctioning vehicle a FWD?
YES <FWD> : Go to Step 2.
NO <AWD> : Go to Step 8.
AC702815AB
Connectors: C-03, C-31
C-03
C-31
AC702816 AC
Connectors: D-05, D-22
D-05
D-22
AC702817AB
Connector: D-20
D-20 (GR)
COMBINATION METER
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CHASSIS ELECTRICAL
54A-39
STEP 2. Check fuel pump module connector D-20 for
loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Is fuel pump module connector D-20 in good condition?
YES : Go to Step 3.
NO : Repair the connector.
STEP 3. Check the fuel level sensor (main).
Check to see if the fuel level sensor (main) is normal. Refer to
.
Q: Is the check result normal?
YES : Go to Step 4.
NO : Replace the fuel level sensor (main).
STEP 4. Measure the resistance at fuel pump module
connector D-20.
(1) Disconnect pump module connector D-20, and measure at
the wiring harness side.
(2) Measure the resistance value between terminal 1 and
ground.
• The measured value should be 2 ohm or less.
Q: Does the measured resistance value correspond with
this range?
YES : Go to Step 6.
NO : Go to Step 5.
STEP 5. Check the wiring harness between fuel pump
module connector D-20 (terminal 1) and ground.
• Check the ground wire for open circuit.
Q: Is the wiring harness between fuel pump module
connector D-20 (terminal 1) and ground in good
condition?
YES : There is no action to be taken.
NO : Repair the wiring harness.
STEP 6. Check combination meter connector C-03 for
loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Is combination meter connector C-03 in good
condition?
YES : Go to Step 7.
NO : Repair the connector.
AC702818AB
Harness side: D-20
COMBINATION METER
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CHASSIS ELECTRICAL
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STEP 7. Check the wiring harness between fuel pump
module connector D-20 (terminal 2) and combination
meter connector C-03 (terminal 17 or 18).
• Check the communication lines for open circuit and short
circuit.
NOTE: Also check intermediate connectors C-31 and D-05. If
intermediate connectors C-31 and D-05 are damaged, repair or
replace the connector as described in GROUP 00E, Harness
Connector Inspection
.
Q: Are the wiring harness between fuel pump module
connector D-20 (terminal 2) and combination meter
connector C-03 (terminal 17 or 18) in good condition?
YES : Go to Step 14.
NO : Repair the wiring harness. The fuel gauge should
work normally.
STEP 8. Check fuel pump module connector D-20 and fuel
level sensor (sub) connector D-22 <AWD> for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is fuel pump module connector D-20 and fuel level
sensor (sub) connector D-22 <AWD> in good condition?
YES : Go to Step 9.
NO : Repair the connector.
STEP 9. Check the fuel level sensor (main) and (sub)
Check to see if the fuel level sensor (main) and (sub) is normal.
Refer to
.
Q: Is the check result normal?
YES : Go to Step 10.
NO : Replace the fuel level sensor (main) or (sub).
STEP 10. Measure the resistance at fuel pump module
connector D-20.
(1) Disconnect fuel pump module connector D-20, and
measure at the wiring harness side.
(2) Measure the resistance value between terminal 1 and
ground.
• The measured value should be 2 ohm or less.
Q: Does the measured resistance value correspond with
this range?
YES : Go to Step 12.
NO : Go to Step 11.
AC702818AB
Harness side: D-20
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