Lexus ES: Operation Check
OPERATION CHECK
INPUT SIGNAL CHECK
(a) Connect the Techstream to the DLC3.
(b) Check the steering pad switch assembly using the Data List function of the Techstream (cruise control main switch, -SET switch, +RES switch and CANCEL switch).
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| *1 | Steering Pad Switch Assembly |
| *a | Cruise Control Main Switch |
| *b | -SET Switch |
| *c | +RES Switch |
| *d | CANCEL Switch |
INSPECT CRUISE CONTROL MAIN SWITCH
(a) Turn the power switch on (IG).
(b) Turn the dynamic radar cruise control system on using the cruise control main switch.
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| *1 | Steering Pad Switch Assembly |
| *a | Cruise Control Main Switch |
(c) Check that the cruise control indicator (vehicle-to-vehicle distance control mode) in the combination meter assembly illuminates and "Radar Ready" is displayed on the multi-information display.
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| *a | Cruise Control Indicator (Vehicle-to-vehicle Distance Control Mode) |
| *b | Multi-information Display |
(d) Turn the dynamic radar cruise control system off using the cruise control main switch. Check that the cruise control indicator (vehicle-to-vehicle distance control mode) in the combination meter assembly and "Radar Ready" on the multi-information display turn off.
(e) Turn the power switch off with the cruise control indicator (vehicle-to-vehicle distance control mode) in the combination meter assembly illuminated and "Radar Ready" on the multi-information display displayed. Turn the power switch back on (IG) and check that the cruise control indicator (vehicle-to-vehicle distance control mode) in the combination meter assembly and "Radar Ready" on the multi-information display are turned off.
INSPECT MODE SELECT
(a) Turn the power switch on (IG).
(b) Push and hold the cruise control main switch for 1.5 seconds or more with the dynamic radar cruise control system off to change to constant speed control mode.
| *1 | Steering Pad Switch Assembly |
| *a | Cruise Control Main Switch |
NOTICE:
Do not push any other switches before pushing the cruise control main switch. If any other switches are pushed, turn the dynamic radar cruise control system off and repeat the above procedure.
(c) Check that the cruise control indicator (vehicle-to-vehicle distance control mode) in the combination meter assembly and "Radar Ready" on the multi-information display turn off and the cruise control indicator (constant speed control mode) illuminates.
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| *a | Cruise Control Indicator (Vehicle-to-vehicle Distance Control Mode) |
| *b | Multi-information Display |
| *c | Cruise Control Indicator (Constant Speed Control Mode) |
INSPECT VEHICLE-TO-VEHICLE DISTANCE CONTROL SWITCH
(a) Turn the power switch on (IG).
(b) Turn the dynamic radar cruise control system on using the cruise control main switch.
| *1 | Steering Pad Switch Assembly |
| *a | Cruise Control Main Switch |
HINT:
When in constant speed control mode, the vehicle-to-vehicle distance cannot be changed.
(c) Press the vehicle-to-vehicle distance control switch.
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| *1 | Steering Pad Switch Assembly |
| *a | Vehicle-to-vehicle Distance Control Switch |
(d) Check that the indicator of the vehicle-to-vehicle distance, which is shown on the multi-information display in the combination meter assembly changes from long to middle to short in that order.
HINT:
Long is automatically selected each time the power switch is turned on (IG).
READ NEXT:
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE:
Before replacing the hybrid vehicle control ECU, refer to Registration.
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When replacing the millimeter wave radar sensor assembly, always replace it wi
Terminals Of Ecu
TERMINALS OF ECU CHECK HYBRID VEHICLE CONTROL ECU Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition A32-15 (STP) - G59-6 (E1) GR - W-B Stop ligh
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 detecte
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ECU Malfunction (B1003)
DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area Note B1003 ECU Malfunction A malfunction in the non-volatile storage of the central gateway ECU (network gateway ECU) is detected. Central gateway ECU (network gateway ECU) - PROCEDURE 1. RECONFIR
Components
COMPONENTS ILLUSTRATION *1 STEERING WHEEL ASSEMBLY - - Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/stopping": N*m (kgf*cm, ft.*lbf) - - ILLUSTRATION *1 LOWER STEERING COLUMN COVER SUB-ASSEMBLY *2 TURN SIGNAL SWITCH A
