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
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
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
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
SEE MORE:
Bus Buffer ECU Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area Bus Buffer ECU Communication Stop Mode Any of the following conditions are met:
Communication stop for "Accessory Gateway" is indicated on the "Communication Bus Check" screen of the Techstream.
Click here
Communication stop histor
Throttle / Pedal Position Sensor / Switch "A" Circuit Short to Battery or Open (P012015)
DESCRIPTION Refer to DTC P012011. Click here DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note P012015 Throttle / Pedal Position Sensor / Switch "A" Circuit Short to Battery or Open The output voltage of VTA1 is higher than 4.535 V for 2 seconds or
