Engine Controls -MIL ON/DTC P0430 Set

L-SB-0127-11

October 5, 2011

MIL "ON" DTC P0430

Service Category
Engine/Hybrid System

Section
Engine Control

Market
USA





Applicability

Introduction

Some 2010 model year RX 450h vehicles may exhibit a MIL "ON" condition with Diagnostic Trouble Code (DTC) P0430 stored in the Engine Control Module or ECM (SAE term: Powertrain Control Module/PCM). Use the following repair procedure to address this condition.

Production Change Information





This TSIB applies to vehicles produced BEFORE the Production Change Effective VINs shown.





Parts Information





Warranty Information





Required Tools & Equipment





Required Tools & Equipment

Repair Procedure

1. Using TIS Techstream verify DTC P0430 (Catalyst System Efficiency Below Threshold (Bank 2) is present.

2. Inspect the 02 B2S2 voltage and the 02 B2S2 Impedance.

3. If the 02 B2S2 voltage is 1.275 Volts or the 02 Impedance B2S2 is over 300 ohms with the engine at normal operating temperature replace the B2 02 sensor.

NOTE

If the above conditions are not present this TSIB does not apply. Proceed with normal repair manual diagnostic procedures.





Refer to the Technical Information System (TIS) applicable model and model year Repair Manual:

4. Clear all DTCs and test drive the vehicle to confirm the condition has been corrected.