DIAGNOSIS SYSTEM 1. DESCRIPTION When troubleshooting a vehicle with the diagnosis system, the only difference from the usual troubleshooting procedure is connecting the Techstream to the vehicle and reading various data output from the vehicle's trailer brake control ECU (brake control with bracket relay). The trailer brake control ECU (brake control with bracket relay) records DTCs when it detects a malfunction in itself or in its circuits. To check the DTCs, connect the Techstream to the DLC3 on the vehicle. The Techstream enables you to clear the DTCs, activate the various actuators, and check the Data List. (a) Check the battery voltage. Standard voltage: 11 to 14 V If the voltage is below 11 V, recharge the battery before proceeding to the next step. (b) Check the DLC3 (See page 2. DIAGNOSIS (a) When a malfunction occurs in the trailer brake control system, a warning is displayed on the multi-information display. |
Toyota Tundra Service Manual > Audio And Visual System: Dtc Check / Clear
DTC CHECK / CLEAR 1. START DIAGNOSTIC MODE HINT: Illustrations may differ from the actual vehicle screen depending on the device settings and options. Therefore, some detailed areas may not be shown exactly the same as on the actual vehicle screen. If the system cannot enter the diagnostic mode, rep ...
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