DTC P2455:00 [PCM (SKYACTIV-D 2.2)]

id0102j5153900


Engine Type

Item

Reference
Fuel injector (2 pin type)
(See Fuel injector (2 pin type).)
Fuel injector (6 pin type)
(See Fuel injector (6 pin type).)


Fuel injector (2 pin type)

DTC P2455:00

Exhaust gas pressure sensor No.2 circuit high input
DETECTION CONDITION
•  If the input voltage at the PCM terminal 1Z is more than 4.92 V for 5 s, the PCM determines that the exhaust gas pressure sensor No.2 circuit has a malfunction.
MONITORING CONDITIONS
―  Battery voltage: 8—20 V
―  0.5 s have elapsed after the ignition was switched ON (engine off or on)
Diagnostic support note
•  This is a continuous monitor (CCM).
•  The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle.
•  FREEZE FRAME DATA/Snapshot data is available.
•  DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION
•  PCM restricts engine torque.
•  Inhibits the auto diesel particulate filter regeneration control.
•  Inhibits the compulsory diesel particulate filter regeneration control.
•  Inhibits the EGR control.
•  Inhibits engine-stop by operating the i-stop function.
POSSIBLE CAUSE
•  Exhaust gas pressure sensor No.2 connector or terminals malfunction
•  PCM connector or terminals malfunction
•  Short to power supply in wiring harness between exhaust gas pressure sensor No.2 terminal C and PCM terminal 1Z
•  Exhaust gas pressure sensor No.2 power supply circuit and signal circuit are shorted to each other
•  Open circuit in wiring harness between the following terminals:
―  Exhaust gas pressure sensor No.2 terminal C—PCM terminal 1Z
―  Exhaust gas pressure sensor No.2 terminal B—PCM terminal 1AE
•  Exhaust gas pressure sensor No.2 malfunction
•  PCM malfunction

Diagnostic Procedure

STEP

INSPECTION

ACTION
1
RECORD VEHICLE STATUS AT TIME OF DTC DETECTION TO UTILIZE WITH REPEATABILITY VERIFICATION
Note
•  Recording can be facilitated using the screen capture function of the PC.
•  Record the FREEZE FRAME DATA/snapshot data 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
INSPECT EXHAUST GAS PRESSURE SENSOR NO.2 CONNECTOR CONDITION
•  Switch the ignition off.
•  Disconnect the exhaust gas pressure sensor No.2 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 9.
No
Go to the next step.
4
INSPECT PCM CONNECTOR CONDITION
•  Disconnect the PCM 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 9.
No
Go to the next step.
5
INSPECT EXHAUST GAS PRESSURE SENSOR NO.2 SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY
•  Verify that the exhaust gas pressure sensor No.2 and PCM 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 exhaust gas pressure sensor No.2 terminal C (wiring harness-side).
•  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 exhaust gas pressure sensor No.2 terminal C and PCM terminal 1Z.
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 9.
6
INSPECT EXHAUST GAS PRESSURE SENSOR NO.2 POWER SUPPLY CIRCUIT AND SIGNAL CIRCUIT FOR SHORT TO EACH OTHER
•  Verify that the exhaust gas pressure sensor No.2 and PCM connectors are disconnected.
•  Switch the ignition off.
•  Inspect for continuity between exhaust gas pressure sensor No.2 terminals A 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:
•  Exhaust gas pressure sensor No.2 terminal A—PCM terminal 1AK
•  Exhaust gas pressure sensor No.2 terminal C—PCM terminal 1Z
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 9.
No
Go to the next step.
7
INSPECT EXHAUST GAS PRESSURE SENSOR NO.2 CIRCUIT FOR OPEN CIRCUIT
•  Verify that the exhaust gas pressure sensor No.2 and PCM connectors are disconnected.
•  Inspect for continuity between the following terminals (wiring harness-side):
―  Exhaust gas pressure sensor No.2 terminal C—PCM terminal 1Z
―  Exhaust gas pressure sensor No.2 terminal B—PCM terminal 1AE
•  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:
•  Exhaust gas pressure sensor No.2 terminal C—PCM terminal 1Z
•  Exhaust gas pressure sensor No.2 terminal B—PCM terminal 1AE
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 9.
8
INSPECT EXHAUST GAS PRESSURE SENSOR NO.2
•  Reconnect all disconnected connectors.
•  Inspect the exhaust gas pressure sensor No.2.
•  Is there any malfunction?
Yes
Replace the exhaust gas pressure sensor No.2, then go to the next step.
(See EXHAUST GAS PRESSURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
No
Go to the next step.
9
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Always reconnect all disconnected connectors.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Perform the KOEO or KOER self test.
•  Is the same 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.
10
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-D 2.2)].)
No
DTC troubleshooting completed.


Fuel injector (6 pin type)

DTC P2455:00

Exhaust gas pressure sensor No.2: High input
DETECTION CONDITION
•  With the following conditions met, the exhaust gas pressure sensor No.2 output voltage exceeds 4.89 V for a continuous 3 s.
―  Battery positive voltage: 8—16 V
―  0.5 s have elapsed after ignition is switched ON (engine off or on)
―  The following DTCs are not detected
•  Constant voltage power supply control system: P0652:00, P0653:00
Diagnostic support note
•  This is a continuous monitor (CCM).
•  The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle.
•  FREEZE FRAME DATA/Snapshot data is available.
•  DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION
•  Limits engine torque.
•  Inhibits the automatic diesel particulate filter regeneration control.
•  Inhibits the manual diesel particulate filter regeneration control.
•  Inhibits the EGR control.
POSSIBLE CAUSE
•  Exhaust gas pressure sensor No.2 connector or terminal malfunction
•  PCM connector or terminal malfunction
•  Short to power supply in wiring harness between exhaust gas pressure sensor No.2 terminal C and PCM terminal 1Z
•  Short circuit in exhaust gas pressure sensor No.2 power supply circuit and signal circuit
•  Open circuit in wiring harness between the following terminals:
―  Exhaust gas pressure sensor No.2 terminal A and PCM terminal 1AK
―  Exhaust gas pressure sensor No.2 terminal C and PCM terminal 1Z
―  Exhaust gas pressure sensor No.2 terminal B and PCM terminal 1AE
•  Exhaust gas pressure sensor No.2 malfunction
•  PCM malfunction

Diagnostic Procedure

Step

Inspection

Results

Action
1
RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION
Note
•  Recording can be facilitated using the screen capture function of the PC.
•  Record the freeze frame data/snap shot data.
—
Go to the next step.
2
INSPECT EXHAUST GAS PRESSURE SENSOR NO.2 CONNECTOR CONDITION
•  Switch the ignition OFF.
•  Disconnect the exhaust gas pressure sensor No.2 connector.
•  Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is the connector normal?
Yes
Go to the next step.
No
Repair or replace the connector, then go to Step 8.
3
INSPECT PCM CONNECTOR CONDITION
•  Disconnect the PCM connector.
•  Inspect the connector engagement and connection condition, and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is the connector normal?
Yes
Go to the next step.
No
Repair or replace the connector, then go to Step 8.
4
INSPECT EXHAUST GAS PRESSURE SENSOR NO.2 SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY
•  Verify that the exhaust gas pressure sensor No.2 connector and the PCM connector 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 exhaust gas pressure sensor No.2 terminal C (vehicle wiring harness side).
•  Is the voltage 0 V?
Yes
Go to the next step.
No
Refer to the wiring diagram and verify if there is a common connector between exhaust gas pressure sensor No.2 terminal C and PCM terminal 1Z.
If there is a common connector:
•  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short to power supply to determine the malfunctioning location.
•  Repair or replace the malfunctioning location.
If there is no common connector:
•  Repair or replace the wiring harness which is shorted to the power supply.
Go to Step 8.
5
INSPECT EXHAUST GAS PRESSURE SENSOR NO.2 POWER SUPPLY CIRCUIT AND SIGNAL CIRCUIT FOR SHORT CIRCUIT
•  Verify that the exhaust gas pressure sensor No.2 connector and the PCM connector are disconnected.
•  Switch the ignition OFF.
•  Inspect for continuity between exhaust gas pressure sensor No.2 terminals A and C (vehicle wiring harness side).
•  Is there continuity?
Yes
Refer to the wiring diagram and verify if there is a common connector between the following terminals.
•  Exhaust gas pressure sensor No.2 terminal A and PCM terminal 1AK
•  Exhaust gas pressure sensor No.2 terminal C and PCM terminal 1Z
If there is a common connector:
•  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for short circuit to determine the malfunctioning location.
•  Repair or replace the malfunctioning location.
If there is no common connector:
•  Repair or replace the malfunctioning wiring harness.
Go to Step 8.
No
Go to the next step.
6
INSPECT EXHAUST GAS PRESSURE SENSOR NO.2 CIRCUIT FOR OPEN CIRCUIT
•  Verify that the exhaust gas pressure sensor No.2 connector and the PCM connector are disconnected.
•  Inspect between the following terminals (vehicle wiring harness side) for continuity.
―  Exhaust gas pressure sensor No.2 terminal A and PCM terminal 1AK
―  Exhaust gas pressure sensor No.2 terminal C and PCM terminal 1Z
―  Exhaust gas pressure sensor No.2 terminal B and PCM terminal 1AE
•  Is there continuity?
Yes
Go to the next step.
No
Refer to the wiring diagram and verify if there is a common connector between the following terminals.
•  Exhaust gas pressure sensor No.2 terminal A and PCM terminal 1AK
•  Exhaust gas pressure sensor No.2 terminal C and PCM terminal 1Z
•  Exhaust gas pressure sensor No.2 terminal B and PCM terminal 1AE
If there is a common connector:
•  Inspect the common connector and terminals for corrosion, damage, or disconnection and the common wiring harnesses for an open circuit to determine the malfunctioning location.
•  Repair or replace the malfunctioning location.
If there is no common connector:
•  Repair or replace the wiring harness which has an open circuit.
Go to Step 8.
7
INSPECT EXHAUST GAS PRESSURE SENSOR NO.2
•  Reconnect all the disconnected connectors.
•  Inspect exhaust gas pressure sensor No.2.
•  Is exhaust gas pressure sensor No.2 normal?
Yes
Go to the next step.
No
Replace exhaust gas pressure sensor No.2, then go to the next step.
(See EXHAUST GAS PRESSURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
8
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Reconnect all the disconnected connectors.
•  Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC.
•  Perform the KOEO or KOER self-test.
•  Has DTC P2455:00 been recorded?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the PCM, then go to the next step.
No
Go to the next step.
9
VERIFY OTHER DTCs
•  Has any other DTC or pending code been stored?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
(See DTC TABLE [PCM (SKYACTIV-D 2.2)].)
No
DTC troubleshooting completed.