DTC P025D:00 [SKYACTIV-G 1.3, SKYACTIV-G 1.5]

id0102q1008500

DTC P025D:00

Fuel pump control module result of on-board diagnostic test high input

DETECTION CONDITION

•  Result of on-board test cannot be received from fuel pump control module (voltage is too high).

Diagnostic support note

•  This is a continuous monitor (CCM).

•  The check engine light does not illuminate.

•  FREEZE FRAME DATA is not available.

•  Snapshot data is available.

•  DTC is stored in the PCM memory.

FAIL-SAFE FUNCTION

Not applicable

POSSIBLE CAUSE

•  Fuel pump control module connector or terminals malfunction

•  PCM connector or terminals malfunction

•  Short to power supply in wiring harness between fuel pump control module terminal 1A and PCM terminal 2AM

•  Open circuit in wiring harness between fuel pump control module terminal 1A and PCM terminal 2AM

•  Fuel pump control module malfunction

•  Short to ground in wiring harness between fuel pump relay terminal C and fuel pump control module terminal 2A

•  Short to power supply in wiring harness between fuel pump relay terminal C and fuel pump control module terminal 2A

•  Open circuit in wiring harness between fuel pump relay terminal C and fuel pump control module terminal 2A

•  Fuel pump relay malfunction

•  Short to ground or open circuit in fuel pump relay power supply circuit (without i-ELOOP)

―  Short to ground in wiring harness between battery positive terminal and fuel pump relay terminal D

―  MAIN 200 A fuse and/or FUEL PUMP 15 A fuse malfunction

―  Open circuit in wiring harness between battery positive terminal and fuel pump relay terminal D

•  Short to ground or open circuit in fuel pump relay power supply circuit (with i-ELOOP)

―  Short to ground in wiring harness between DC-DC converter (i-ELOOP) terminal 4A and fuel pump relay terminal D

―  FUEL PUMP 15 A fuse malfunction

―  Open circuit in wiring harness between DC-DC converter (i-ELOOP) terminal 4A and fuel pump relay terminal D

•  PCM malfunction

DTC P025D:00	Fuel pump control module result of on-board diagnostic test high input
DETECTION CONDITION	• Result of on-board test cannot be received from fuel pump control module (voltage is too high). Diagnostic support note • This is a continuous monitor (CCM). • The check engine light does not illuminate. • FREEZE FRAME DATA is not available. • Snapshot data is available. • DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	Not applicable
POSSIBLE CAUSE	• Fuel pump control module connector or terminals malfunction • PCM connector or terminals malfunction • Short to power supply in wiring harness between fuel pump control module terminal 1A and PCM terminal 2AM • Open circuit in wiring harness between fuel pump control module terminal 1A and PCM terminal 2AM • Fuel pump control module malfunction • Short to ground in wiring harness between fuel pump relay terminal C and fuel pump control module terminal 2A • Short to power supply in wiring harness between fuel pump relay terminal C and fuel pump control module terminal 2A • Open circuit in wiring harness between fuel pump relay terminal C and fuel pump control module terminal 2A • Fuel pump relay malfunction • Short to ground or open circuit in fuel pump relay power supply circuit (without i-ELOOP) ― Short to ground in wiring harness between battery positive terminal and fuel pump relay terminal D ― MAIN 200 A fuse and/or FUEL PUMP 15 A fuse malfunction ― Open circuit in wiring harness between battery positive terminal and fuel pump relay terminal D • Short to ground or open circuit in fuel pump relay power supply circuit (with i-ELOOP) ― Short to ground in wiring harness between DC-DC converter (i-ELOOP) terminal 4A and fuel pump relay terminal D ― FUEL PUMP 15 A fuse malfunction ― Open circuit in wiring harness between DC-DC converter (i-ELOOP) terminal 4A and fuel pump relay terminal D • 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.
2		No	Go to the next step.
3	INSPECT FUEL PUMP CONTROL MODULE CONNECTOR CONDITION • Switch the ignition off. • Disconnect the fuel pump control module 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 14.
3		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 14.
4		No	Go to the next step.
5	INSPECT FUEL PUMP CONTROL MODULE SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY • Verify that the fuel pump control module 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 fuel pump control module terminal 1A (wiring harness-side). • Is the voltage 0 V?	Yes	Go to the next step.
5		No	Refer to the wiring diagram and verify whether or not there is a common connector between fuel pump control module terminal 1A and PCM terminal 2AM. 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 14.
6	INSPECT FUEL PUMP CONTROL MODULE SIGNAL CIRCUIT FOR OPEN CIRCUIT • Verify that the fuel pump control module and PCM connectors are disconnected. • Switch the ignition off. • Inspect for continuity between fuel pump control module terminal 1A (wiring harness-side) and PCM terminal 2AM (wiring harness-side). • Is there continuity?	Yes	Go to the next step.
6		No	Refer to the wiring diagram and verify whether or not there is a common connector between fuel pump control module terminal 1A and PCM terminal 2AM. 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 14.
7	INSPECT FUEL PUMP CONTROL MODULE • Reconnect all disconnected connectors. • Inspect the fuel pump control module. (See FUEL PUMP CONTROL MODULE INSPECTION [SKYACTIV-G 1.3, SKYACTIV-G 1.5].) • Is there any malfunction?	Yes	Replace the fuel pump control module, then go to Step 14. (See FUEL PUMP CONTROL MODULE REMOVAL/INSTALLATION [SKYACTIV-G 1.3, SKYACTIV-G 1.5].)
7		No	Go to the next step.
8	INSPECT FUEL PUMP RELAY CONTROL CIRCUIT FOR SHORT TO GROUND • Remove the fuel pump relay. • Verify that the fuel pump control module connector is disconnected. • Inspect for continuity between fuel pump relay terminal C (wiring harness-side) and body ground. • Is there continuity?	Yes	Refer to the wiring diagram and verify whether or not there is a common connector between fuel pump relay terminal C and fuel pump control module terminal 2A. 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 14.
8		No	Go to the next step.
9	INSPECT FUEL PUMP RELAY CONTROL CIRCUIT FOR SHORT TO POWER SUPPLY • Fuel pump relay is removed. • Verify that the fuel pump control module connector is 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 fuel pump relay terminal C (wiring harness-side). • Is the voltage 0 V?	Yes	Go to the next step.
9		No	Refer to the wiring diagram and verify whether or not there is a common connector between fuel pump relay terminal C and fuel pump control module terminal 2A. 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 14.
10	INSPECT FUEL PUMP RELAY CONTROL CIRCUIT FOR OPEN CIRCUIT • Fuel pump relay is removed. • Verify that the fuel pump control module connector is disconnected. • Switch the ignition off. • Inspect for continuity between fuel pump relay terminal C (wiring harness-side) and Fuel pump control module terminal 2A (wiring harness-side). • Is there continuity?	Yes	Go to the next step.
10		No	Refer to the wiring diagram and verify whether or not there is a common connector between fuel pump control module terminal 2A and body ground. 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: • Inspect for the following: ― Open circuit between fuel pump control module and body ground ― Loose or lifting ground point • Repair or replace the malfunctioning part. Go to Step 14.
11	INSPECT FUEL PUMP RELAY • Switch the ignition off. • Fuel pump relay is removed. (See RELAY LOCATION.) • Inspect the fuel pump relay. (See RELAY INSPECTION.) • Is there any malfunction?	Yes	Replace the fuel pump relay, then go to Step 14.
11		No	Vehicles without i-ELOOP: • Go to the next step. Vehicles with i-ELOOP: • Go to Step 13.
12	INSPECT FUEL PUMP RELAY POWER SUPPLY CIRCUIT FOR SHORT TO GROUND OR OPEN CIRCUIT • Fuel pump relay is removed. • Verify that the fuel pump control module connector is disconnected. • Measure the voltage at the fuel pump relay terminal D (wiring harness-side). • Is the voltage B+?	Yes	Go to Step 14.
12		No	Inspect the MAIN 200 A fuse and FUEL PUMP 15 A fuse. • If the fuse is blown: ― Refer to the wiring diagram and verify whether or not there is a common connector between battery positive terminal and fuel pump relay terminal D. 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. • Replace the malfunctioning fuse. • If the fuse is damaged: ― Replace the malfunctioning fuse. • If all fuses are normal: ― Refer to the wiring diagram and verify whether or not there is a common connector between battery positive terminal and fuel pump relay terminal D. 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 14.
13	INSPECT FUEL PUMP RELAY POWER SUPPLY CIRCUIT FOR SHORT TO GROUND OR OPEN CIRCUIT • Fuel pump relay is removed. • Verify that the fuel pump control module connector is disconnected. • Measure the voltage at the fuel pump relay terminal D (wiring harness-side). • Is the voltage B+?	Yes	Go to the next step.
13		No	Inspect the FUEL PUMP 15 A fuse. • If the fuse is blown: ― Refer to the wiring diagram and verify whether or not there is a common connector between DC-DC converter (i-ELOOP) terminal 4A and fuel pump relay terminal D. 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. • Replace the malfunctioning fuse. • If the fuse is damaged: ― Replace the malfunctioning fuse. • If all fuses are normal: ― Refer to the wiring diagram and verify whether or not there is a common connector between DC-DC converter (i-ELOOP) terminal 4A and fuel pump relay terminal D. 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 the next step.
14	VERIFY DTC TROUBLESHOOTING COMPLETED • Always reconnect all disconnected connectors. • Clear the DTC from the PCM memory using the M-MDS. (See AFTER REPAIR PROCEDURE [SKYACTIV-G 1.3, SKYACTIV-G 1.5].) • Perform the KOEO or KOER self test. (See KOEO/KOER SELF TEST [SKYACTIV-G 1.3, SKYACTIV-G 1.5].) • Is the same DTC present?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the PCM. (See PCM REMOVAL/INSTALLATION [SKYACTIV-G 1.3, SKYACTIV-G 1.5].) Go to the next step.
14		No	Go to the next step.
15	VERIFY AFTER REPAIR PROCEDURE • Perform the “AFTER REPAIR PROCEDURE”. (See AFTER REPAIR PROCEDURE [SKYACTIV-G 1.3, SKYACTIV-G 1.5].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [SKYACTIV-G 1.3, SKYACTIV-G 1.5].)
15		No	DTC troubleshooting completed.