Lexus ES: Air Bag Circuit (C147D)
DESCRIPTION
The skid control ECU (brake booster with master cylinder assembly) receives the secondary collision brake control request signal from the airbag ECU assembly.
| DTC No. | Detection Item | INF Code | DTC Detection Condition | Trouble Area | MIL | Note |
|---|---|---|---|---|---|---|
| C147D | Air Bag Circuit | 451 | An abnormal secondary collision brake control request signal is received 2 times or more when communication with the airbag ECU assembly is possible. |
| Does not come on | Secondary collision brake DTC HINT: The DTC is cleared when the conditions return to normal. |
CAUTION / NOTICE / HINT
NOTICE:
After replacing the skid control ECU (brake booster with master cylinder assembly), perform linear solenoid valve offset learning, ABS holding solenoid valve learning, yaw rate and acceleration sensor zero point calibration and system information memorization after performing "Reset Memory".
Click here .gif)
PROCEDURE
| 1. | CHECK DTC (AIRBAG SYSTEM) |
(a) Check if airbag system DTCs are output.
Body Electrical > SRS Airbag > Trouble Codes| Result | Proceed to |
|---|---|
| DTCs are not output. | A |
| DTCs are output. | B |
| A | .gif) | REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY |
| B | | INSPECT AIRBAG SYSTEM |
READ NEXT:
Master Reservoir Level Malfunction (C1202)
DESCRIPTION DTC No. Detection Item INF Code DTC Detection Condition Trouble Area MIL Note C1202 Master Reservoir Level Malfunction 1126 Either of the following is detected:
ECM Communication Circuit (C1203)
DESCRIPTION DTC No. Detection Item INF Code DTC Detection Condition Trouble Area MIL Note C1203 ECM Communication Circuit 1161 Either of the following is detected:
Identifi
Zero Point Calibration of Yaw Rate Sensor undone (C1210,C1336)
DESCRIPTION The airbag ECU assembly has a built-in yaw rate and acceleration sensor and detects the vehicle condition using 2 circuits (GL1, GL2). The skid control ECU (brake booster with master cylin
SEE MORE:
Installation
INSTALLATION PROCEDURE 1. INSTALL LUGGAGE COMPARTMENT DOOR WEATHERSTRIP (a) Make sure to remove any non-drying sealant from the installation surfaces on the vehicle body. NOTICE: If there is any non-drying sealant remaining on the vehicle body, the luggage compartment door weatherstrip may not be
Hybrid/EV Battery Temperature Sensor "A" Voltage Out of Range (P0A9B1C,P0AC51C,P0ACA1C,P0AE81C,P0BC21C,P0C331C)
DESCRIPTION Refer to the description for DTC P0A9B11. Click here DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate P0A9B1C Hybrid/EV Battery Temperature Sensor "A" Voltage Out of Range The performance of battery temperature sensor 0 is abnormal;
