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: Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Lighting System DTC No. Detection Item Link B1244 Light Sensor Circuit Malfunction B124B Automatic High Beam System B124C Automatic High Beam Camera B2430 LED Headlight LH Circuit Malfunction B2431 LED Headlight RH Circuit Malfunction U023A Lost Communication With Image ...