Lexus ES: Fail-safe Chart
Lexus ES (XZ10) Service Manual / Suspension / Tire Pressure Monitoring / Tire Pressure Warning System (for Hv Model) / 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.
| *a | Example |
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Data List / Active Test
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
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
Tire Pressure Monitor Receiver Communication Stop (B1247)
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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Installation
INSTALLATION CAUTION / NOTICE / HINT NOTICE:
Do not remove/install the spiral cable with sensor sub-assembly with the auxiliary battery connected and the engine switch (for Gasoline Model) or power switch (for HV Model) on (IG).
Do not rotate the spiral cable with sensor sub-assembly without th
ECU Power Source Circuit
DESCRIPTION If the power switch is on (IG), the hybrid vehicle control ECU applies current to the MREL terminal to turn the IGCT relay on. This supplies power to the +B1 and +B2 terminals. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: After turning the power switch off, waiting time may be require
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