DTC P2507:00 [PCM (SKYACTIV-D 2.2)]

id0102j5709800

DTC P2507:00

•  PCM power supply system: Low input

DETECTION CONDITION

•  When the following conditions are met, a condition in which the backup power voltage is less than 50 % of the battery voltage continues for 10 s.

―  Battery positive voltage: 10—16 V

―  0.5 s have elapsed after ignition is 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

Not applicable

POSSIBLE CAUSE

•  Battery malfunction

•  Short to ground or open circuit in PCM power supply circuit

―  Short to ground in wiring harness between battery positive terminal 2O and wiring harness

―  MAIN 200 A fuse malfunction

―  ENG.+B 7.5 A fuse malfunction

―  Open circuit in wiring harness between positive battery terminal and PCM terminal 2O

•  PCM connector or terminal malfunction

•  PCM malfunction

DTC P2507:00	• PCM power supply system: Low input
DETECTION CONDITION	• When the following conditions are met, a condition in which the backup power voltage is less than 50 % of the battery voltage continues for 10 s. ― Battery positive voltage: 10—16 V ― 0.5 s have elapsed after ignition is 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	Not applicable
POSSIBLE CAUSE	• Battery malfunction • Short to ground or open circuit in PCM power supply circuit ― Short to ground in wiring harness between battery positive terminal 2O and wiring harness ― MAIN 200 A fuse malfunction ― ENG.+B 7.5 A fuse malfunction ― Open circuit in wiring harness between positive battery terminal and PCM terminal 2O • PCM connector or terminal 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 BATTERY

•  Switch the ignition OFF.

•  Inspect the battery.
(See BATTERY INSPECTION.)

•  Is the battery normal?

Yes

Go to the next step.

No

Recharge or replace the battery, then go to Step 5.

(See BATTERY REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)

(See BATTERY RECHARGING.)

3

INSPECT PCM POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT OR SHORT TO GROUND

•  Reconnect all the disconnected connectors.

•  Display PID VPWR using the M-MDS.
(See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].)

•  Verify the VPWR monitor value.

•  Is the VPWR monitor value B₊?

Yes

Go to Step 5.

No

INSPECT MAIN 200 A FUSE AND ENG.+B 7.5 A FUSE

•  If the fuse is blown:

―  Refer to the wiring diagram and verify if there is a common connector between the battery positive terminal and PCM terminal 2O.

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 ground to determine the malfunctioning location.

•  Repair or replace the malfunctioning location.

•  Replace the blown fuse.

If there is no common connector:

•  Repair or replace the wiring harness which is shorted to ground.

•  Replace the blown fuse.

•  If the fuse is damaged:

―  Replace the damaged fuse.

•  If both fuses are normal:

―  Refer to the wiring diagram and verify if there is a common connector between the battery positive terminal and PCM terminal 2O.

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 5.

4

INSPECT PCM CONNECTOR CONDITION

•  Switch the ignition OFF.

•  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 the next step.

5

VERIFY THAT REPAIRS HAVE BEEN COMPLETED

•  Reconnect all the disconnected connectors.

•  Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC.
(See CLEARING DTC [PCM (SKYACTIV-D 2.2)].)

•  Display the DTCs using the M-MDS.
(See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].)

•  Has DTC P2507:00 been recorded?

Yes

Repeat the inspection from Step 1.

•  If the malfunction recurs, replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)

No

Go to the next step.

6

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.

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 BATTERY • Switch the ignition OFF. • Inspect the battery. (See BATTERY INSPECTION.) • Is the battery normal?	Yes	Go to the next step.
2		No	Recharge or replace the battery, then go to Step 5. (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-D 2.2].) (See BATTERY RECHARGING.)
3	INSPECT PCM POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT OR SHORT TO GROUND • Reconnect all the disconnected connectors. • Display PID VPWR using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) • Verify the VPWR monitor value. • Is the VPWR monitor value B₊?	Yes	Go to Step 5.
3		No	INSPECT MAIN 200 A FUSE AND ENG.+B 7.5 A FUSE • If the fuse is blown: ― Refer to the wiring diagram and verify if there is a common connector between the battery positive terminal and PCM terminal 2O. 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 ground to determine the malfunctioning location. • Repair or replace the malfunctioning location. • Replace the blown fuse. If there is no common connector: • Repair or replace the wiring harness which is shorted to ground. • Replace the blown fuse. • If the fuse is damaged: ― Replace the damaged fuse. • If both fuses are normal: ― Refer to the wiring diagram and verify if there is a common connector between the battery positive terminal and PCM terminal 2O. 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 5.
4	INSPECT PCM CONNECTOR CONDITION • Switch the ignition OFF. • 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.
4		No	Repair or replace the connector, then go to the next step.
5	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Reconnect all the disconnected connectors. • Refer to the [MEMORY CLEARING PROCEDURE] and clear the DTC. (See CLEARING DTC [PCM (SKYACTIV-D 2.2)].) • Display the DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) • Has DTC P2507:00 been recorded?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
5		No	Go to the next step.
6	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)].)
6		No	DTC troubleshooting completed.