Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: G Sensor Failure (C1647)
DESCRIPTION
The clearance warning sonar ECU assembly communicates with the airbag sensor assembly*1 or yaw rate and acceleration sensor*2 via CAN communication, and if it is determined that the airbag sensor assembly*1 or yaw rate and acceleration sensor*2 is malfunctioning, DTC C1647 is stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1647 | G Sensor Failure | Airbag sensor assembly*1 or yaw rate and acceleration sensor*2 malfunction | Vehicle stability control system |
- *1: for Optitron Meter Type
- *2: for TFT Meter Type
CAUTION / NOTICE / HINT
NOTICE:
-
After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.
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-
After replacing an ultrasonic sensor or the clearance warning ECU assembly, perform the necessary procedures (adjustment, calibration, initialization or registration).
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PROCEDURE
| 1. | CHECK DTC OUTPUT |
(a) Using the Techstream, check for DTCs according to the prompts on the screen.
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(b) Clear the DTCs according to the screen on the Techstream.
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(c) Recheck for DTCs.
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HINT:
- DTC C1647 is stored when a malfunction signal sent from the vehicle stability control system is detected.
- If the malfunctioning part has been repaired or replaced before rechecking for DTCs, DTC C1647 will not be output again.
-
If DTC C1647 is output frequently, duplicate the conditions that cause the problem symptoms and perform the inspection again, even though the DTC was not output when rechecking for DTCs.
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| Result | Proceed to |
|---|---|
| DTC C1647 is output | A |
| DTC C1647 is not output | B |
| A | .gif) | GO TO VEHICLE STABILITY CONTROL SYSTEM |
| B | | USE SIMULATION METHOD TO CHECK |
Communication Error From Clearance Sonar ECU to VSC (C164B)
DESCRIPTION The vehicle stability control system receives intelligent clearance sonar system information from the clearance warning ECU assembly via CAN communication. When it is determined that there ...
Wheel Speed Sensor Malfunction (C164D)
DESCRIPTION This DTC is stored when the clearance warning ECU assembly receives a wheel speed sensor (front speed sensor RH or front speed sensor LH, rear speed sensor RH or rear speed sensor LH) abno ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Transmission Control Cable: Installation
INSTALLATION PROCEDURE 1. INSTALL TRANSMISSION CONTROL CABLE ASSEMBLY NOTICE: Before installing the transmission control cable assembly, check that the park/neutral position switch assembly and the shift lever are in neutral. (a) Pass the transmission control cable assembly from the cabin to the eng ...
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Meter / Gauge System: System Description
SYSTEM DESCRIPTION OUTLINE OF COMBINATION METER ASSEMBLY (a) for Optitron Meter Type *a Indication Example *b Tachometer *c Speedometer *d Engine Coolant Temperature Receiver Gauge *e Fuel Receiver Gauge *f Multi-information Display *g Display Area A1 *h Displ ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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