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:
Calibration
CALIBRATION ADJUST PANORAMIC VIEW MONITOR SYSTEM (a) This panoramic view monitor system can be set from the diagnostic screen of the multi-display assembly. (b) If the following operations are performed, it is necessary to perform adjustments and checks on the diagnostic screen. Part Name Opera
Switch Lights of Remote Touch do not Illuminate
DESCRIPTION Power is supplied to the remote touch (remote operation controller assembly) illumination when the light control switch is in the tail or head position. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuse for circuits related to this system before performing the following pr
