P2430

2UZ-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2430: Secondary Air Injection System Air Flow / Pressure Sensor Circuit Bank1

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

DESCRIPTION





MONITOR DESCRIPTION

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.





MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS

P2430, P2432, P2433:





P2431:





TYPICAL MALFUNCTION THRESHOLDS

P2430:





P2431:





P2432:





P2433:





WIRING DIAGRAM





INSPECTION PROCEDURE
HINT: Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air/fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (PRESSURE SENSOR - ECM)




(a) Remove the intake manifold Removal.
(b) Disconnect the A45 pressure sensor connector.
(c) Disconnect the E5 ECM connector.
(d) Measure the resistance between the wire harness side connectors.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.
2. INSPECT ECM (SENSOR POWER SOURCE CIRCUIT)




(a) Measure the resistance between the ECM terminal and body ground.
Standard resistance:





(b) Turn the ignition switch ON.
(c) Measure the voltage between the ECM terminal and body ground.
Standard voltage:






NG -- REPLACE ECM
OK -- Continue to next step.
3. INSPECT PRESSURE SENSOR




(a) Remove the intake manifold Removal.
(b) Connect the pressure gauge to the pressure sensor.
(c) Connect the Techstream to the DLC3.
(d) Turn the ignition switch ON and turn the tester ON (Do not start engine).
(e) Enter the following menus: Powertrain / Engine and ECT / Data List / Air pump pressure (absolute).
(f) Check the pressure displayed on the Techstream fluctuates when applying the pressure to the pressure sensor with the pressure gauge.
OK:
Pressure fluctuates in response to the pressure applied with pressure gauge.
NG -- REPLACE PRESSURE SENSOR
OK -- REPLACE ECM