DTC P2444 Secondary Air Injection System Pump Stuck On: Wiring Diagram

WARNING: This page is about a different variant/trim than selected.

Engine Electrical System ENGINE TYPE EJ (WITHOUT PUSH BUTTON START) <Ref. to 2.5L TURBO (WITHOUT PUSH BUTTON START), WIRING DIAGRAM, Engine Electrical System.>
Engine Electrical System ENGINE TYPE EJ (WITH PUSH BUTTON START) <Ref. to 2.5L TURBO (WITH PUSH BUTTON START), WIRING DIAGRAM, Engine Electrical System.>

Fig 1: Secondary Air Injection System Pump Stuck On - Wiring Diagram

G10265841

Courtesy of SUBARU OF AMERICA, INC.

DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
1 CHECK SECONDARY AIR PIPING PRESSURE. Turn the ignition switch to ON. Using the Subaru Select Monitor, read the value of «Sec. Air Piping Pressure», and compare with the actual atmospheric pressure. NOTE: For detailed operation procedures, refer to "READ CURRENT DATA FOR ENGINE". <Ref. to SUBARU SELECT MONITOR .>	Is the difference between «Sec. Air Piping Pressure» and atmospheric pressure 50 mmHg (6.7 kPa, 2.0 inHg, 0.97 psig) or less?	Go to step 2 .	Replace the secondary air combination valve LH. <Ref. to SECONDARY AIR COMBINATION VALVE .>
2 CHECK HARNESS BETWEEN ECM AND SECONDARY AIR PUMP RELAY CONNECTOR. Turn the ignition switch to OFF. Remove the secondary air pump relay from the relay holder. Measure the resistance between the secondary air pump relay connector and engine ground terminals. Connector & terminal (F9) No. 13 - Engine ground:	Is the resistance 1 MΩ or more?	Go to step 3 .	Repair the short circuit to ground in harness between ECM connector and secondary air pump relay connector, and go to the next step. Go to step 3 .
3 CHECK SECONDARY AIR PUMP FUSE. Disconnect the secondary air pump connector. Install the secondary air pump relay to the relay holder. Check the MAIN SBF and the secondary air pump fuse (60 A) for blown out.	Is the fuse blown out?	Replace the fuse with a new part, and go to the next step. Go to step 4.	Go to step 4.
4 CHECK SECONDARY AIR PUMP POWER SUPPLY. Disconnect the positive (+) terminal after disconnecting the negative (-) terminal of battery. Measure the resistance between secondary air pump connector and battery cable positive terminal. Connector & terminal (F11) No. 2 - battery cable positive terminal:	Is the resistance 1 MΩ or more?	Go to step 6 .	Go to step 5 .
5 CHECK SECONDARY AIR PUMP RELAY. Remove the secondary air pump relay from the relay holder. Measure the resistance between the secondary air pump relay terminals. Terminals No. 11 - No. 14:	Is the resistance 1 MΩ or more?	Repair the short circuit to power of the secondary air pump, and go to the next step. Go to step 6 .	Replace the secondary air pump relay. <Ref. to LOCATION , Electrical Component Location.> After replacement, go to the next step. Go to step 6 .
6 CHECK SECONDARY AIR PUMP. Check the appearance of secondary air pump and the condition of impeller.	Is the secondary air pump free from deformation, cracks and other damages? And does the impeller rotate smoothly?	End.	Replace the secondary air pump. <Ref. to SECONDARY AIR PUMP .>