DIAGNOSIS SYSTEM DESCRIPTION (a) The transponder key ECU assembly controls the engine immobiliser system. Engine immobiliser system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). CHECK DLC3 (a) Check the DLC3. Click here INSPECT BATTERY VOLTAGE (a) Measure the battery voltage. Standard voltage: 11 to 14 V If the voltage is below 11 V, recharge or replace the battery. |
Toyota Tundra Service Manual > Sfi System: Secondary Air Injection System Switching Valve Stuck Open Bank1 (P2440-P2443)
DESCRIPTION Refer to DTC P0412 (See page ). DTC No. DTC Detection Condition Trouble Area P2440 Cumulative pressure pulsation is 60 kPa (450 mmHg) or more for 2 seconds (1 trip detection logic). Air switching valve (ASV) assembly Open or short in ASV circuit Secondary air injection system piping Pres ...
