DTC P0453:00 [PCM (SKYACTIV-G)]
DTC P0453:00 [PCM (SKYACTIV-G)]
SM2334438
id0102t4300900
Outline
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System malfunction location |
Fuel tank pressure sensor high input |
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Detection condition
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• The PCM monitors the EVAP control system fuel tank pressure sensor input signal to the PCM. The test fails when the signal average jumps above a maximum allowable calibrated parameter.
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Fail-safe
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• Not applicable
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Possible cause
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• Fuel tank pressure sensor connector or terminals malfunction
• PCM connector or terminals malfunction
• Fuel tank pressure sensor malfunction
• Short to power supply in fuel tank pressure sensor signal circuit
• Short circuit in fuel tank pressure sensor power supply circuit and signal circuit
• Short to power supply in fuel tank pressure sensor power supply circuit
• Open circuit in fuel tank pressure sensor ground circuit
• PCM malfunction
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Diagnostic Procedure
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Step |
Inspection |
Results |
Action |
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1
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RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION
• Record the freeze frame data/snapshot data.
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—
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Go to the next step.
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2
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VERIFY RELATED REPAIR INFORMATION OR SERVICE INFORMATION AVAILABILITY
• Verify related Service Bulletins, on-line repair information, or Service Information availability.
• Is any related Information available?
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Yes
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Perform repair or diagnosis according to the available information.
• If the vehicle is not repaired, go to the next step.
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No
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Go to the next step.
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3
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DETERMINE IF FUEL TANK PRESSURE SENSOR OR CONNECTOR CONNECTIONS MALFUNCTION
• Access the EVAP_PRES PID using the M-MDS. (See PID/DATA MONITOR INSPECTION.)
• Verify the EVAP_PRES PID value.
• Is the EVAP_PRES PID value 5 V or B+?
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Yes
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Go to Step 7.
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No
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Go to the next step.
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4
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INSPECT FUEL TANK PRESSURE SENSOR CONNECTOR FOR MALFUNCTION
• Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.)
• Are the connector and terminal normal?
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Yes
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Go to the next step.
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No
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Repair or replace the malfunctioning location and perform the repair completion verification.
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5
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INSPECT PCM CONNECTOR FOR MALFUNCTION
• Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.)
• Are the connector and terminal normal?
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Yes
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Go to the next step.
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No
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Repair or replace the malfunctioning location and perform the repair completion verification.
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6
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INSPECT FUEL TANK PRESSURE SENSOR FOR MALFUNCTION
• Inspect the applicable part. (See FUEL TANK PRESSURE SENSOR INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))].) (See FUEL TANK PRESSURE SENSOR INSPECTION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)
• Is the part normal?
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Yes
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Go to repair completion verification.
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No
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Repair or replace the malfunctioning location and perform the repair completion verification.
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7
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DETERMINE IF FUEL TANK PRESSURE SENSOR OR WIRING HARNESS MALFUNCTION
• Switch the ignition off.
• Disconnect the fuel tank pressure sensor connector.
• Access the EVAP_PRES PID using the M-MDS. (See PID/DATA MONITOR INSPECTION.)
• Verify the EVAP_PRES PID value.
• Is the EVAP_PRES PID value 5 V or B+?
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Yes
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Go to the next step.
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No
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Go to Step 10.
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8
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INSPECT FUEL TANK PRESSURE SENSOR SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY
• Inspect the applicable circuit for a short to power supply. (See CIRCUIT INSPECTION.)
• Is the circuit normal?
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Yes
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Go to the next step.
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No
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Repair or replace the malfunctioning location and perform the repair completion verification.
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9
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INSPECT FUEL TANK PRESSURE SENSOR POWER SUPPLY CIRCUIT AND SIGNAL CIRCUIT FOR SHORT CIRCUIT
• Inspect the applicable circuits for a short circuit. (See CIRCUIT INSPECTION.)
• Is the circuit normal?
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Yes
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Go to repair completion verification.
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No
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Repair or replace the malfunctioning location and perform the repair completion verification.
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10
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INSPECT FUEL TANK PRESSURE SENSOR POWER SUPPLY CIRCUIT FOR SHORT TO POWER SUPPLY
• Inspect the applicable circuit for a short to power supply. (See CIRCUIT INSPECTION.)
• Is the circuit normal?
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Yes
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Go to the next step.
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No
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Repair or replace the malfunctioning location and perform the repair completion verification.
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11
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INSPECT FUEL TANK PRESSURE SENSOR GROUND CIRCUIT FOR OPEN CIRCUIT
• Inspect the applicable circuit for open circuit. (See CIRCUIT INSPECTION.)
• Is the circuit normal?
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Yes
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Replace the fuel tank pressure sensor and perform the repair completion verification.
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No
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Repair or replace the malfunctioning location and perform the repair completion verification.
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Repair completion verification 1
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VERIFY THAT VEHICLE IS REPAIRED
• Install/connect the part removed/disconnected during the troubleshooting procedure.
• Clear the DTC recorded in the memory. (See CLEARING DTC.)
• Replicate the vehicle conditions at the time the DTC was detected using the following procedure.
• Perform the DTC inspection for the PCM. (See DTC INSPECTION.)
• Is the same Pending DTC present?
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Yes
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Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
If the CAN communication is normal, perform the diagnosis from Step 1.
• If the malfunction recurs, replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))].) (See PCM REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)
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No
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Go to the next step.
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Repair completion verification 2
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VERIFY IF OTHER DTCs DISPLAYED
• Perform the DTC inspection. (See DTC INSPECTION.)
• Are any other DTCs displayed?
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Yes
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Repair the malfunctioning location according to the applicable DTC troubleshooting.
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No
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DTC troubleshooting completed.
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