DIAGNOSIS SYSTEM CHECK DLC3 (a) Check the DLC3. Click here FUNCTION OF WARNING INDICATOR AND MESSAGE (a) If the pre-collision system is not functioning properly, the driver is warned by the PCS warning light and a warning message displayed on the multi-information display.
INITIAL CHECK (a) An initial check is performed when the ignition switch is off for more than 2 seconds and then turned to ON. The initial check consists of a pre-collision system diagnostic check with a duration of approximately 3 seconds. (b) If a malfunction is detected during the initial check, the PCS warning light in the combination meter assembly will blink or illuminates and a warning message indicating the pre-collision system is malfunctioning or disabled will be displayed on the multi-information display. CONSTANT CHECK (a) The millimeter wave radar sensor assembly constantly monitors the pre-collision system for malfunctions after the ignition switch is turned to ON and the initial check (approximately 3 seconds) has completed. (b) If a malfunction is detected during the constant check, the PCS warning light in the combination meter assembly will blink or illuminates and a warning message indicating the pre-collision system is malfunctioning or disabled will be displayed on the multi-information display. |
Toyota Tundra Service Manual > Dynamic Radar Cruise Control System: Lost Communication with ECM / PCM "A" (U0100,U0104,U0122,U0125,U0126,U0129,U0137)
DESCRIPTION The millimeter wave radar sensor assembly and ECM communicate with each sensor and ECU via CAN communication. If any malfunction is detected in a CAN communication circuit, one or more CAN communication system DTCs are stored. DTC No. Detection Item DTC Detection Condition Trouble Area U ...