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, engine 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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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 U010087 Lost Communication with ECM/PCM "A" M
Steering Vibrator Component Internal Failure (C1A7496)
DESCRIPTION If the forward recognition camera receives a steering vibration ECU malfunction signal, DTC C1A7496 is stored. DTC No. Detection Item DTC Detection Condition Trouble Area C1A7
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Hybrid/EV Battery Current Sensor "A" Signal Stuck In Range (P0ABF2A)
DESCRIPTION Refer to the description for DTC P0ABF11. Click here DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate P0ABF2A Hybrid/EV Battery Current Sensor "A" Signal Stuck In Range The battery current sensor output is stuck even when battery vol
Inspection
INSPECTION PROCEDURE 1. INSPECT BRAKE CYLINDER AND PISTON (a) Check the rear disc brake cylinder bore and rear disc brake piston for rust and scoring. If necessary, replace the rear disc brake cylinder and rear disc brake piston. 2. INSPECT PAD LINING THICKNESS (a) Using a ruler, measure the rear
