Lexus ES: Fail-safe Chart
FAIL-SAFE CHART
FAIL-SAFE FUNCTION
(a) When a malfunction occurs in the tire pressure warning system, the tire pressure warning light illuminates after blinking for 1 minute to inform the driver of the system failure.
(b) As a result of this, tire pressure monitoring is disabled and a DTC is stored in the tire pressure warning ECU and receiver.
(c) When there is a system malfunction, the value of each related tire is not displayed.
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DATA LIST / ACTIVE TEST READ DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any part
DIAGNOSTIC TROUBLE CODE CHART Tire Pressure Warning ECU and Receiver DTC No. Detection Item Note Link B1247 Tire Pressure Monitor Receiver Communication Stop This DTC is for main body
DESCRIPTION The main body ECU (multiplex network body ECU) and tire pressure warning ECU and receiver communicate by direct line. If a malfunction occurs in this communication signal, B1247 is output
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DESCRIPTION Detection Item Symptom Trouble Area Tilt and Telescopic ECU Communication Stop Mode Any of the following conditions are met:
Communication stop for "Multiplex Tilt and Telescopic" is indicated on the "Communication Bus Check" screen of the Techstream.
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DESCRIPTION Refer to DTC C050C12 Click here DTC No. Detection Item DTC Detection Condition Trouble Area C14E614 Left Rear Wheel Speed Sensor Supply Voltage Circuit Short to Ground or Open An open or short in the speed sensor power supply circuit is detected for 0.12 seconds or mor
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