Lexus ES: Fail-safe Chart
FAIL-SAFE CHART
| DTC | Trouble Area | Brake System Warning Light (Yellow) | Parking Brake Indicator Light (Red) | Fail-safe Deactivation Condition |
|---|---|---|---|---|
| C1245 | Deceleration sensor data malfunction | Illuminates | Normal | 20 seconds after power switch turned off |
| C13A0 | Open in power supply relay circuit | Illuminates | Normal* | 20 seconds after power switch turned off |
| C13A1 | Short in power supply relay circuit | Illuminates | Normal | 20 seconds after power switch turned off |
| C13A2 | Power switch malfunction | Illuminates | Normal | 20 seconds after power switch turned off |
| C13A5 | Parking brake motor (Parking brake actuator assembly) current monitor malfunction | Illuminates | Normal* | 20 seconds after power switch turned off |
| C13A6 | Parking brake motor (Parking brake actuator assembly) open or short malfunction | Illuminates | Normal* | 20 seconds after power switch turned off |
| C13A7 | Parking brake actuator assembly malfunction (jamming, spinning, repeated slipping) | Illuminates | Normal* | Parking brake actuator assembly normal |
| C13A9 | Brake Control System Malfunction | Illuminates | Normal | Electronically controlled brake system returns to normal (All of the following conditions are met)
|
| C13AA | Electric parking brake high temperature | Does not illuminate | Blinks | Wait 1 minute |
| C13AE | System information not received malfunction | Illuminates | Normal | System information received |
| C13B0 | ECU malfunction | Illuminates | Normal* | Parking brake ECU (brake actuator assembly) normal |
| C13B4 | Electric parking brake switch open or short circuit malfunction | Illuminates | Blinks | After returning to normal condition, turn power switch again |
| U0073 | CAN communication system malfunction | Illuminates | Normal | Power switch off |
| U0100 | SFI system communication malfunction | Illuminates | Normal | Communication normal, power switch off |
| U0124 | Deceleration sensor communication malfunction | Illuminates | Normal | Communication normal, power switch off |
| U0129 | Brake system communication malfunction | Illuminates | Normal | Communication normal, power switch off |
| U0293 | Hybrid vehicle control ECU communication malfunction | Illuminates | Normal | Communication normal, power switch off |
- *: The parking brake indicator light blinks (red) if the electric parking brake switch assembly is pulled or pushed.
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Freeze Frame Data
FREEZE FRAME DATA FREEZE FRAME DATA HINT:
When a DTC is stored, the freeze frame data stores the current vehicle (sensor) state as.
The freeze frame data cannot be cleared or updated until the re
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
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Message Not Displayed on Multi-information Display When AUTO Function Set to ON/OFF
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Open in One Side of Bus 1 Branch Line
DESCRIPTION When the CAN bus main lines are normal (no open, short to ground, short to +B or short between lines) and there is an ECU or sensor on the "Communication Bus Check" screen that is indicated as not communicating or whose connection status on the "Communication Bus Check" screen changes in
Position Initialization Incomplete (B2343)
DESCRIPTION This DTC is stored when the sliding roof ECU (sliding roof drive gear sub-assembly) has not been initialized. DTC No. Detection Item DTC Detection Condition Trouble Area B2343 Position Initialization Incomplete Sliding roof ECU (sliding roof drive gear sub-assembly) has
