DTC P0460:00 [PCM (SKYACTIV-G 2.5T)]

id0102s8301400

DTC P0460:00

Fuel level sensor circuit malfunction
DETECTION CONDITION
•  The PCM monitors the fuel tank level sensor output signal. If the difference between maximum and minimum value of input signal is 25 % or more for 14 s, the PCM determines that there is a fuel level sensor circuit malfunction.
MONITORING CONDITIONS
?  The following DTCs are not detected:
•  Fuel gauge sender unit: P0462:00, P0463:00
Diagnostic support note
•  This is a continuous monitor (CCM).
•  The check engine light illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
•  PENDING CODE is available if the PCM detects the above malfunction condition during first drive cycle.
•  FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
•  DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION
Not applicable
POSSIBLE CAUSE
•  Instrument cluster malfunction
?  Incorrectly installed fuel gauge
?  Fuel level input signal circuit malfunction
•  Fuel gauge sender unit connector or terminals malfunction
•  Fuel gauge sender unit (sub) connector or terminals malfunction
•  Rear body control module (RBCM) connector or terminals malfunction
•  Short to power supply in wiring harness between the following terminals:
?  Fuel gauge sender unit terminal D—Rear body control module (RBCM) terminal 3I
?  Fuel gauge sender unit terminal C—Rear body control module (RBCM) terminal 3C
?  Fuel gauge sender unit (sub) terminal A—Rear body control module (RBCM) terminal 3K
?  Fuel gauge sender unit (sub) terminal B—Rear body control module (RBCM) terminal 3C
•  Short to ground in wiring harness between the following terminals:
?  Fuel gauge sender unit terminal D—Rear body control module (RBCM) terminal 3I
?  Fuel gauge sender unit terminal C—Rear body control module (RBCM) terminal 3C
?  Fuel gauge sender unit (sub) terminal A—Rear body control module (RBCM) terminal 3K
?  Fuel gauge sender unit (sub) terminal B—Rear body control module (RBCM) terminal 3C
•  Fuel gauge sender unit signal circuit and ground circuit are shorted to each other
•  Fuel gauge sender unit (sub) signal circuit and ground circuit are shorted to each other
•  Open circuit in wiring harness between the following terminals:
?  Fuel gauge sender unit terminal D—Rear body control module (RBCM) terminal 3I
?  Fuel gauge sender unit terminal C—Rear body control module (RBCM) terminal 3C
?  Fuel gauge sender unit (sub) terminal A—Rear body control module (RBCM) terminal 3K
?  Fuel gauge sender unit (sub) terminal B—Rear body control module (RBCM) terminal 3C
•  Fuel gauge sender unit malfunction
•  Fuel gauge sender unit (sub) malfunction
•  Rear body control module (RBCM) malfunction
•  PCM malfunction

Diagnostic Procedure

STEP

INSPECTION

RESULTS

ACTION
1
RECORD FREEZE FRAME DATA (MODE 02)/SNAPSHOT DATA AND DIAGNOSTIC MONITORING TEST RESULTS TO UTILIZE WITH REPEATABILITY VERIFICATION
Note
•  Recording can be facilitated using the screen capture function of the PC.
•  Record the FREEZE FRAME DATA (Mode 02)/snapshot data and DIAGNOSTIC MONITORING TEST RESULTS (engine cooling system related) on the repair order.
—
Go to the next step.
2
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
•  Verify related Service Information availability.
•  Is any related Service Information available?
Yes
Perform repair or diagnosis according to the available Service Information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
VERIFY RELATED PENDING CODE AND/OR DTC
•  Switch the ignition off, then ON (engine off).
•  Perform the Pending Trouble Code Access Procedure and DTC Reading Procedure.
•  Is the PENDING CODE/DTC P0462:00, P0463:00 or U0323:00 also present?
Yes
Go to the applicable PENDING CODE or DTC inspection.
(See DTC P0462:00 [PCM (SKYACTIV-G 2.5T)].)
(See DTC P0463:00 [PCM (SKYACTIV-G 2.5T)].)
(See DTC U0323:00 [PCM (SKYACTIV-G 2.5T)].)
No
Go to the next step.
4
INSPECT NON-GENUINE ACCESSORY FOR MALFUNCTION
•  Remove any non-genuine accessory.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Perform the KOER self test.
•  Is the PENDING CODE for this DTC present?
Yes
Go to the next step.
No
Explain to the customer that the vehicle is normal.
•  Go to Step 18.
5
INSPECT FUEL GAUGE SENDER UNIT CONNECTOR CONDITION
•  Switch the ignition off.
•  Disconnect the fuel gauge sender unit connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
•  Is there any malfunction?
Yes
Repair or replace the connector and/or terminals, then go to Step 18.
No
2WD:
•  Go to Step 7.
4WD:
•  Go to the next step.
6
INSPECT FUEL GAUGE SENDER UNIT (SUB) CONNECTOR CONDITION
•  Disconnect the fuel gauge sender unit (sub) connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
•  Is there any malfunction?
Yes
Repair or replace the connector and/or terminals, then Go to Step 18.
No
Go to the next step.
7
INSPECT REAR BODY CONTROL MODULE (RBCM) CONNECTOR CONDITION
•  Disconnect the rear body control module (RBCM) connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
•  Is there any malfunction?
Yes
Repair or replace the connector and/or terminals, then go to Step 18.
No
Go to the next step.
8
INSPECT FUEL GAUGE SENDER UNIT CIRCUIT FOR SHORT TO POWER SUPPLY
•  Verify that the fuel gauge sender unit and rear body control module (RBCM) connectors are disconnected.
•  Switch the ignition ON (engine off).
Note
•  Another DTC may be stored by the PCM detecting an open circuit.
•  Measure the voltage at the following terminals (wiring harness-side):
?  Fuel gauge sender unit terminal D
?  Fuel gauge sender unit terminal C
•  Is the voltage 0 V?
Yes
2WD:
•  Go to Step 10.
4WD:
•  Go to the next step.
No
Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
•  Fuel gauge sender unit terminal D—Rear body control module (RBCM) terminal 3I
•  Fuel gauge sender unit terminal C—Rear body control module (RBCM) terminal 3C
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has a short to power supply.
Go to Step 18.
9
INSPECT FUEL GAUGE SENDER UNIT (SUB) CIRCUIT FOR SHORT TO POWER SUPPLY
•  Verify that the fuel gauge sender unit (sub) and rear body control module (RBCM) connectors are disconnected.
Note
•  Another DTC may be stored by the PCM detecting an open circuit.
•  Measure the voltage at the following terminals (wiring harness-side):
?  Fuel gauge sender unit (sub) terminal A
?  Fuel gauge sender unit (sub) terminal B
•  Is the voltage 0 V?
Yes
Go to the next step.
No
Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
•  Fuel gauge sender unit (sub) terminal A—Rear body control module (RBCM) terminal 3K
•  Fuel gauge sender unit (sub) terminal B—Rear body control module (RBCM) terminal 3C
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has a short to power supply.
Go to Step 18.
10
INSPECT FUEL GAUGE SENDER UNIT CIRCUIT FOR SHORT TO GROUND
•  Switch the ignition off.
•  Verify that the fuel gauge sender unit and rear body control module (RBCM) connectors are disconnected.
•  Inspect for continuity between the following terminals (wiring harness-side) and body ground:
?  Fuel gauge sender unit terminal D
?  Fuel gauge sender unit terminal C
•  Is there continuity?
Yes
Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
•  Fuel gauge sender unit terminal D—Rear body control module (RBCM) terminal 3I
•  Fuel gauge sender unit terminal C—Rear body control module (RBCM) terminal 3C
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has a short to ground.
Go to Step 18.
No
2WD:
•  Go to Step 12.
4WD:
•  Go to the next step.
11
INSPECT FUEL GAUGE SENDER UNIT (SUB) SIGNAL CIRCUIT FOR SHORT TO GROUND
•  Verify that the fuel gauge sender unit (sub) and rear body control module (RBCM) connectors are disconnected.
•  Inspect for continuity between the following terminals (wiring harness-side) and body ground:
?  Fuel gauge sender unit (sub) terminal A
?  Fuel gauge sender unit (sub) terminal B
•  Is there continuity?
Yes
Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
•  Fuel gauge sender unit (sub) terminal A—Rear body control module (RBCM) terminal 3K
•  Fuel gauge sender unit (sub) terminal B—Rear body control module (RBCM) terminal 3C
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has a short to ground.
Go to Step 18.
No
Go to the next step.
12
INSPECT FUEL GAUGE SENDER UNIT SIGNAL CIRCUIT AND GROUND CIRCUIT FOR SHORT TO EACH OTHER
•  Verify that the fuel gauge sender unit and rear body control module (RBCM) connectors are disconnected.
•  Inspect for continuity between fuel gauge sender unit terminal D and C (wiring harness-side).
•  Is there continuity?
Yes
Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
•  Fuel gauge sender unit terminal D—Rear body control module (RBCM) terminal 3I
•  Fuel gauge sender unit terminal C—Rear body control module (RBCM) terminal 3C
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to each other.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has a short to each other.
Go to Step 18.
No
2WD:
•  Go to Step 14.
4WD:
•  Go to the next step.
13
INSPECT FUEL GAUGE SENDER UNIT (SUB) SIGNAL CIRCUIT AND GROUND CIRCUIT FOR SHORT TO EACH OTHER
•  Verify that the fuel gauge sender unit (sub) and rear body control module (RBCM) connectors are disconnected.
•  Inspect for continuity between fuel gauge sender unit (sub) terminals A and B (wiring harness-side).
•  Is there continuity?
Yes
Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
•  Fuel gauge sender unit (sub) terminal A—Rear body control module (RBCM) terminal 3K
•  Fuel gauge sender unit (sub) terminal B—Rear body control module (RBCM) terminal 3C
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to each other.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has a short to each other.
Go to Step 18.
No
Go to the next step.
14
INSPECT FUEL GAUGE SENDER UNIT CIRCUIT FOR OPEN CIRCUIT
•  Verify that the fuel gauge sender unit and rear body control module (RBCM) connectors are disconnected.
•  Inspect for continuity between the following terminals (wiring harness-side):
?  Fuel gauge sender unit terminal D—Rear body control module (RBCM) terminal 3I
?  Fuel gauge sender unit terminal C—Rear body control module (RBCM) terminal 3C
•  Is there continuity?
Yes
2WD:
•  Go to Step 16.
4WD:
•  Go to the next step.
No
Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
•  Fuel gauge sender unit terminal D—Rear body control module (RBCM) terminal 3I
•  Fuel gauge sender unit terminal C—Rear body control module (RBCM) terminal 3C
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has an open circuit.
Go to Step 18.
15
INSPECT FUEL GAUGE SENDER UNIT (SUB) CIRCUIT FOR OPEN CIRCUIT
•  Verify that the fuel gauge sender unit (sub) and rear body control module (RBCM) connectors are disconnected.
•  Inspect for continuity between the following terminals (wiring harness-side):
?  Fuel gauge sender unit (sub) terminal A—Rear body control module (RBCM) terminal 3K
?  Fuel gauge sender unit (sub) terminal B—Rear body control module (RBCM) terminal 3C
•  Is there continuity?
Yes
Go to the next step.
No
Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
•  Fuel gauge sender unit (sub) terminal A—Rear body control module (RBCM) terminal 3K
•  Fuel gauge sender unit (sub) terminal B—Rear body control module (RBCM) terminal 3C
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has an open circuit.
Go to Step 18.
16
INSPECT FUEL GAUGE SENDER UNIT
•  Inspect the fuel gauge sender unit and fuel gauge sender unit (sub).
•  Is there any malfunction?
Yes
Replace the fuel gauge sender unit or fuel gauge sender unit (sub), then go to Step 18.
(See FUEL GAUGE SENDER UNIT REMOVAL/INSTALLATION [2WD].)
(See FUEL GAUGE SENDER UNIT REMOVAL/INSTALLATION [4WD].)
No
Go to the next step.
17
INSPECT REAR BODY CONTROL MODULE (RBCM)
•  Inspect the rear body control module (RBCM).
•  Is there any malfunction?
Yes
Replace the rear body control module (RBCM), then go to the next step.
(See REAR BODY CONTROL MODULE (RBCM) REMOVAL/INSTALLATION.)
No
Go to the next step.
18
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Always reconnect all disconnected connectors.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Perform the KOER self test.
•  Is the PENDING CODE for this DTC present?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the PCM.
Go to the next step.
No
Go to the next step.
19
VERIFY AFTER REPAIR PROCEDURE
•  Perform the “AFTER REPAIR PROCEDURE”.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [PCM (SKYACTIV-G 2.5T)].)
No
DTC troubleshooting completed.