DTC P2432 Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low: Wiring Diagram
WARNING: This page is about a different car, the 2013 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.
Engine electrical system, turbo model < Refer to appropriate SYSTEM WIRING DIAGRAM. >
| Step | Check | Yes | No |
|---|---|---|---|
1 CHECK CURRENT DATA.
|
Is the value of «Sec. Air Piping Pressure» less than 53.3 kPa (400 mmHg, 15.8 inHg)? | Go to step 2. | Even if DTC is detected, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.
NOTE:
In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.
|
2 CHECK POWER SUPPLY OF SECONDARY AIR COMBINATION VALVE RH.
|
Is the voltage 4.5 V or more? | Go to step 3. | Repair the harness and connector.
NOTE:
In this case, repair the following item:
|
3 CHECK HARNESS BETWEEN ECM AND SECONDARY AIR COMBINATION VALVE RH CONNECTOR.
|
Is the resistance less than 1 Ω? | Go to step 4. | Repair the harness and connector.
NOTE:
In this case, repair the following item:
|
| 4 CHECK HARNESS BETWEEN ECM AND SECONDARY AIR COMBINATION VALVE RH CONNECTOR. Measure the resistance between ECM and chassis ground. Connector & terminal (B137) No. 9 - Chassis ground: |
Is the resistance 1 MΩ or more? | Go to step 5. | Repair the ground short circuit of harness between ECM and secondary air combination valve RH connector. |
| 5 CHECK FOR POOR CONTACT. Check for poor contact of ECM and secondary air combination valve RH connector. |
Is there poor contact of ECM or secondary air combination valve RH connector? | Repair the poor contact of ECM or secondary air combination valve RH connector. | Replace the secondary air combination valve RH. < Refer to SECONDARY AIR COMBINATION VALVE . > |