DTC P2507-00: ECM / PCM Power Input Signal Low [07/2015 - 08/2018]: Procedure

1. Switch the ignition off.
2. Inspect the battery.

   Refer to INSPECTION [07/2015 - ]

3. Is there any malfunction?

   Result

   Result
   Yes
   No

Result: 

Yes 

See step  9

Result: 

No 

See step  2

1. Reconnect all disconnected connectors.
2. Connect the Techstream to the DLC3.
3. Turn the ignition switch to ON.
4. Turn the Techstream on.
5. Enter the following menus: Powertrain / Engine / Data List / Module supply voltage.

   Refer to ON-BOARD DIAGNOSTIC TEST [07/2015 - ]

   Powertrain > Engine > Data List 

   Tester Display
   Module supply voltage

6. Verify the Module supply voltage PID value.
7. Is the Module supply voltage PID value B+?

   Result

   Result
   Yes
   No

Result: 

No 

See step  8

Result: 

Yes 

See step  3

1. Switch the ignition off.
2. Disconnect the ECM connector.
3. Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
4. Is there any malfunction?

   Result

   Result
   Yes
   No

Result: 

Yes 

See step  7

Result: 

No 

See step  4

1. Always reconnect all disconnected connectors.
2. Clear the DTC from the ECM memory using the Techstream.

   Refer to AFTER REPAIR PROCEDURE [07/2015 - ]

   Powertrain > Engine > Clear DTCs 

3. Perform the KOEO or KOER self test.

   Refer to ON-DEMAND SELF-TEST/KEY-ON ENGINE RUNNING SELF-TEST [07/2015 - ]

   Powertrain > Engine > Utility 

   Tester Display
   Key-On Engine Running Self-Test

   Powertrain > Engine > Utility 

   Tester Display
   On-Demand Self-Test

4. Is the same DTC present?

   Result

   Result
   Yes
   No

Result: 

Yes 

See step  6

Result: 

No 

See step  5

1. Perform the "AFTER REPAIR PROCEDURE".

   Refer to AFTER REPAIR PROCEDURE [07/2015 - ]

2. Are any DTCs present?

   Result

   Result
   Yes
   No

Result: 

No 

DTC TROUBLESHOOTING COMPLETED. 

Result: 

Yes 

GO TO THE APPLICABLE DTC INSPECTION. 

1. Refer to DIAGNOSTIC TROUBLE CODE CHART [07/2015 - 08/2018]

1. If the malfunction recurs, replace the ECM.

   Refer to REMOVAL [07/2015 - ]

2. Go to the next step.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  5

1. Then go to the next step.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

1. If the fuse is blown:
   1. Refer to the wiring diagram and verify whether or not there is a common connector between MAIN 200 A fuse and ECM terminal A42-4.

      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.
2. If the fuse is damaged:
   1. Replace the malfunctioning fuse.
3. If all fuses are normal:
   1. Refer to the wiring diagram and verify whether or not there is a common connector between battery positive terminal and ECM terminal A42-4.

      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.
4. Go to the next step.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

1. Refer to INSTALLATION [07/2015 - ]
2. Then go to the next step.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4