|
|
Content .. 1928 1929 1930 1931 ..
Last Modified: 9-16-2014 6.6 C Doc ID: RM000000TMD0DXX Model Year: 2015 Model: Tundra Prod Date Range: [08/2014 - ] Title: 3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0420,P0430; Catalyst System Efficiency Below Threshold (Bank 1); 2015 MY Tundra [08/2014 - ] DTC P0420 Catalyst System Efficiency Below Threshold (Bank 1) DTC P0430 Catalyst System Efficiency Below Threshold (Bank 2) MONITOR DESCRIPTION The first sensor, the Air-Fuel Ratio (A/F) sensor, sends pre-catalyst information to the ECM. The second sensor, the Heated Oxygen (HO2) sensor, sends post-catalyst information to the ECM. control. and the TWC. DTC CODE DTC DETECTION CONDITION TROUBLE AREA P0420 OSC value smaller than standard value under active air-fuel ratio control (1 trip detection logic) Gas leakage from exhaust system Air-Fuel Ratio (A/F) sensor (for Bank 1 Sensor 1) Heated Oxygen (HO2) sensor (for Bank 1 Sensor 2) Front No. 2 exhaust pipe assembly (TWC: Front Catalyst and Rear Catalyst) P0430 OSC value smaller than standard value under active air-fuel ratio control (1 trip detection logic) Gas leakage from exhaust system Air-Fuel Ratio (A/F) sensor (for Bank 2 Sensor 1) Heated Oxygen (HO2) sensor (for Bank 2 Sensor 2) Front exhaust pipe assembly (TWC: Front Catalyst and Rear Catalyst) CATALYST LOCATION 3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0420,P0430;... |