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Last Modified: 9-16-2014 6.6 C Doc ID: RM0000013HD04LX Model Year: 2015 Model: Tundra Prod Date Range: [08/2014 - ] Title: 3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2444-P2447; Secondary Air Injection System Pump Stuck On Bank1; 2015 MY Tundra [08/2014 - ] DTC P2444 Secondary Air Injection System Pump Stuck On Bank1 DTC P2445 Secondary Air Injection System Pump Stuck Off Bank1 DTC P2446 Secondary Air Injection System Pump Stuck On Bank 2 DTC P2447 Secondary Air Injection System Pump Stuck Off Bank 2 DESCRIPTION Refer to P2440
. DTC NO. DTC DETECTION CONDITION TROUBLE AREA P2444 P2446 Secondary air pressure more than 2.4 kPa (18 mmHg) despite ECM commanding air pump to turn off (2 trip detection logic) Short in air pump circuit Open or short in pressure sensor circuit Air switching valve assembly (Pressure sensor) Air Injection Control Driver (AID) ECM P2445 P2447 Secondary air pressure less than 2.4 kPa (18 mmHg) despite ECM commanding air pump to turn on (2 trip detection logic) Air pump Open in air pump circuit Air injection system piping Vacuum hose (pressure sensor - air switching valve) Air switching valve assembly (Pressure sensor) Open or short in pressure sensor circuit Air Injection Control Driver (AID) ECM Open or short in air pump heater circuit Air pump heater relay (AI HTR) MONITOR DESCRIPTION 3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2444-P244... |