Lexus ES manuals

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 hybrid vehicle control ECU 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 (-) auxiliary 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:

 Open circuit in Power source circuit (C13A0,C13A5,C13B0)

DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note C13A0 Open circuit in Power source circuit Both of following conditions are met: Power switch on (IG) or electric parking brake switch assembly pushed to lock side with power switch off. Par

 Vehicle Behavior Chart

VEHICLE BEHAVIOR CHART VEHICLE BEHAVIOR CHART (a) Vehicle behavior categorized by DTC If a DTC is output, the vehicle behaves as follows. DTC No. Detection Item Vehicle Behavior when DTC is Output P033500 Crankshaft Position Sensor "A" Normal driving P033531 Crankshaft Position

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