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: Insufficient Coolant Temperature for Closed Loop Fuel Control (P0125)
DESCRIPTION Refer to DTC P0115 (See page ). DTC No. DTC Detection Condition Trouble Area P0125 Engine Coolant Temperature (ECT) does not reach closed-loop enabling temperature for 20 minutes (this period varies with engine start ECT) (2 trip detection logic) ECT sensor Cooling system Water inlet wit ...
