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 > Lighting System: Door Courtesy Switch Circuit
DESCRIPTION The main body ECU (multiplex network body ECU) detects the condition of the door courtesy light switch assembly. WIRING DIAGRAM PROCEDURE 1. READ VALUE USING TECHSTREAM (a) Using the Techstream, read the Data List. Click here Main Body Tester Display Measurement Item / Range Normal Condi ...
