Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Airbag ECU Malfunction1 (B1160-B1167)
DESCRIPTION
The airbag sensor assembly consists of the acceleration sensor, safing sensor, drive circuit, diagnosis circuit, ignition control, etc.
If the airbag sensor assembly receives signals from the acceleration sensor and pressure sensor, it determines whether the airbags, pretensioners and selectable force limiter should be deployed.
These DTCs are stored when a malfunction is detected in the airbag sensor assembly.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Test Mode / Check Mode |
|---|---|---|---|---|---|
| B1160 | Airbag ECU Malfunction1 | Airbag sensor assembly malfunction | Airbag sensor assembly | Comes on | Does not apply to test/check mode |
| B1161 | Airbag ECU Malfunction2 | Airbag sensor assembly malfunction | Airbag sensor assembly | Comes on | Does not apply to test/check mode |
| B1162 | Airbag ECU Malfunction3 | Airbag sensor assembly malfunction | Airbag sensor assembly | Comes on | Does not apply to test/check mode |
| B1163 | Airbag ECU Malfunction4 | Airbag sensor assembly malfunction | Airbag sensor assembly | Comes on | Does not apply to test/check mode |
| B1164 | Airbag ECU Malfunction5 | Airbag sensor assembly malfunction | Airbag sensor assembly | Comes on | Does not apply to test/check mode |
| B1165 | Airbag ECU Malfunction6 | Airbag sensor assembly malfunction | Airbag sensor assembly | Comes on | Does not apply to test/check mode |
| B1166 | Airbag ECU Malfunction7 | Airbag sensor assembly malfunction | Airbag sensor assembly | Comes on | Does not apply to test/check mode |
| B1167 | Airbag ECU Malfunction8 | Airbag sensor assembly malfunction | Airbag sensor assembly | Comes on | Does not apply to test/check mode |
CAUTION / NOTICE / HINT
HINT:
If any DTCs other than B1160, B1161, B1162, B1163, B1164, B1165, B1166 and B1167 are also output, troubleshoot those DTCs first.
PROCEDURE
| 1. | CHECK DTC |
(a) Turn the engine switch on (IG), and wait for at least 60 seconds.
(b) Check for DTCs.
Body Electrical > SRS Airbag > Trouble CodesNOTICE:
If only DTC B1160, B1161, B1162, B1163, B1164, B1165, B1166 or B1167 is output, do not clear the DTC, replace the airbag sensor assembly.
| Result | Proceed to |
|---|---|
| Only DTC B1160, B1161, B1162, B1163, B1164, B1165, B1166 or B1167 is output | A |
| DTC B1160, B1161, B1162, B1163, B1164, B1165, B1166 or B1167 and other DTCs are output | B |
| A | .gif) | REPLACE AIRBAG SENSOR ASSEMBLY |
| B | | GO TO DIAGNOSTIC TROUBLE CODE CHART |
.gif)
Vehicle Control History
VEHICLE CONTROL HISTORY Function Overview (a) The vehicle control history is a function that records control data (record data) when triggered by specific vehicle behavior or user input. Checking the ...
Front Airbag Sensor (RH) (B1610)
DESCRIPTION The front airbag sensor RH circuit consists of the airbag sensor assembly and front airbag sensor RH. The front airbag sensor RH detects impacts to the vehicle and sends signals to the air ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Park / Neutral Position Switch: Adjustment
ADJUSTMENT PROCEDURE 1. SECURE VEHICLE (a) Fully apply the parking brake and chock a wheel. CAUTION:
Make sure to apply the parking brake and chock a wheel before performing this procedure.
If the vehicle is not secure and the shift lever is moved to N, the vehicle may suddenly move, possibly r ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Air Conditioning Pressure Sensor: Removal
REMOVAL PROCEDURE 1. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM Click here 2. REMOVE AIR CONDITIONER PRESSURE SENSOR (a) Disconnect the connector. (b) Using a 27 mm deep socket wrench, remove the air conditioner pressure sensor as shown in the illustration. NOTICE: Seal the opening of the ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
- Pictorial index
- For safety and security
- Instrument cluster
- Operation of each component
- Driving
- Lexus Display Audio system
- Interior features
- Maintenance and care
- When trouble arises
- Vehicle specifications
- For owners
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
0.0157