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.
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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
SEE MORE:
REPLACEMENT PROCEDURE 1. REPLACE STRAIGHT PIN NOTICE: If a straight pin is deformed, replace it. (a) Using a plastic hammer, tap in new straight pins to the cylinder block sub-assembly. *a Front Side *b Rear Side *c Top Side *d Bottom Side *e RH Side *f 23 mm (0.906 in.
TERMINALS OF ECU DCM (TELEMATICS TRANSCEIVER) *a to Telephone Antenna (Sub) *b to GPS Antenna *c to Telephone Antenna (Main) - - Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition G130-1 (USB-) - USB communication line -
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