P2431

DTC P2430 Secondary Air Injection System Air Flow / Pressure Sensor Circuit Bank1
DTC P2431 secondary Air Injection System Air Flow / Pressure Sensor Circuit Range / Performance Bank1
DTC P2432 Secondary Air Injection System Air Flow / Pressure Sensor Circuit Low Bank1
DTC P2433 Secondary Air Injection System Air Flow / Pressure Sensor Circuit High Bank1

DTC Detection Condition:

DESCRIPTION

MONITOR DESCRIPTION

Monitor Strategy:

Typical Enabling Conditions:

Typical Malfunction Thresholds:

The ECM observes the pressure in the secondary air passage using the pressure sensor located on the air switching valve in the secondary air injection system.

If there is a defect in the sensor or the sensor circuit, the voltage level will deviate from the normal operating range, the ECM interprets this deviation as a defect in the pressure sensor circuit and sets a DTC.

Wiring Diagram:

Step 1-2:

Step 2(Continued):

INSPECTION PROCEDURE

HINT: Read freeze frame data using the intelligent tester. Freeze frame data records the engine conditions when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was running or stopped, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.