Lexus ES: Diagnosis System
DIAGNOSIS SYSTEM
DIAGNOSIS FUNCTION
(a) The diagnosis function turns off the cruise control indicator, illuminates the master warning light and displays a warning message when a malfunction is detected. When a malfunction is detected in the dynamic radar cruise control system, DTCs are stored in the ECM or forward recognition camera.
| *a | Cruise Control Indicator (Constant Speed Control Mode) |
| *b | Cruise Control Indicator (Vehicle-to-vehicle Distance Control Mode) |
| *c | Master Warning Light |
NOTICE:
As data stored in the ECU will be cleared, do not remove any fuses or disconnect the cable from the negative (-) battery terminal before the inspection is complete.
HINT:
When the system returns to normal, the warning message "Cruise Control Malfunction Visit Your Dealer" displayed on the multi-information display will be cleared.
READ NEXT:
DTC CHECK / CLEAR NOTICE: When the diagnosis system is changed from normal mode to check mode or vice versa, all DTCs and freeze frame data recorded in normal mode are cleared. Before changing modes,
FREEZE FRAME DATA CHECK FREEZE FRAME DATA HINT: The ECU records vehicle and driving condition information as freeze frame data the moment a DTC is stored. (a) Connect the Techstream to the DLC3. (b) T
FAIL-SAFE CHART Automatic Cancel Control (a) When the vehicle is being driven in constant speed control mode and any of the following malfunctions occur, control of vehicle speed by the dynamic cruise
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REPLACEMENT CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during input shaft type T oil seal removal/installation are shown below. Necessary Procedure After Parts R
REPLACEMENT
CAUTION / NOTICE / HINT
CAUTION:
Do not remove the radiator cap sub-assembly or radiator drain cock plug while
the engine and radiator assembly are still hot. Pressurized, hot engine coolant
and steam may be released and cause serious burns.
PROCEDURE
1. DRAIN ENGINE COOLANT (
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