Lexus ES: Fail-safe Chart
FAIL-SAFE CHART
FAIL-SAFE FUNCTION
(a) When a malfunction occurs in the lane control system, a message will be displayed on the multi-information display and, depending on the malfunction, functions of the lane control system will be disabled.
| Warning Message | Cause | Fail-safe Operation | Conditions to Return to Normal Condition | |||
|---|---|---|---|---|---|---|
| Lane Departure Alert Function | Steering Assist Function | Lane Centering Function | Vehicle Sway Warning Function | |||
| X: Control is suspended | ||||||
| LTA Malfunction Visit Your Dealer | Lane control system is malfunctioning HINT: Click here | X | X | X | X | After system returns to normal, power switch is turned off and then to on (IG) or LTA main switch is turned off and then to on. |
| Front Camera Unavailable | Forward recognition camera temperature out of operating range | X | X | X | X | Forward recognition camera temperature returns to normal |
| Abnormal forward recognition camera voltage | X | X | X | X | Forward recognition camera voltage returns to normal | |
| Forward recognition camera is temporarily unavailable (forward recognition camera recognition stopped) | X | X | X | X | The conditions which prevent the forward recognition camera from performing recognition return to normal. | |
| Front Camera Unavailable See Owner's Manual |
| X | X | X | X | Forward recognition camera or area of windshield glass in front of forward recognition camera is cleaned |
| LTA Unavailable | Sensor other than forward recognition camera sensor is temporarily unavailable HINT: Click here | X | X | X | X | Temporarily unavailable sensor becomes available |
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Freeze Frame Data
FREEZE FRAME DATA DESCRIPTION (a) Whenever a lane control system DTC is stored, the forward recognition camera stores the current vehicle state as Freeze Frame Data. CHECK FREEZE FRAME DATA (a) Connec
Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a pa
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Lane Control System DTC No. Detection Item Link C1A7496 Steering Vibrator Component Internal Failure U012587 Lost Communication with Multi-axis Ac
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On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT STEERING WHEEL FREE PLAY (a) for Gasoline Model: Start the engine and make sure that the vehicle is in a state in which the power steering can operate. (b) for HV Model: Turn the power switch on (READY) so that the power steering is ready to operate. (c) St
Inspection
INSPECTION PROCEDURE 1. INSPECT POWER SWITCH (a) Check the resistance. (1) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition 5 (SS1) - 6 (AGND) 1 (SS2) - 6 (AGND) Not pushed 10 kΩ or higher
