DESCRIPTION
The front collision sensor circuit (front airbag sensor RH circuit and front airbag sensor LH circuit) is composed of the center airbag sensor assembly, front airbag sensor RH and front airbag sensor LH.
The front airbag sensor RH or front airbag sensor LH detect impacts to the vehicle and send signals to the center airbag sensor assembly to determine if the airbag should be deployed.
DTC B161A/8A is stored when a malfunction is detected in the front collision sensor circuit (front airbag sensor RH circuit and front airbag sensor LH circuit).
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
B161A/8A |
|
|
WIRING DIAGRAM
PROCEDURE
1. |
CHECK DTC |
(a) Turn the ignition switch to ON, and wait for at least 60 seconds.
(b) Turn the ignition switch off.
HINT:
If a communication error occurs, DTCs for both LH and RH sides will be stored simultaneously. To identify the malfunctioning area, turn the ignition switch off and then to ON again.
(c) Turn the ignition switch to ON, and wait for at least 60 seconds.
(d) Check for DTCs (See page ).
Result |
Proceed to |
---|---|
DTCs B1613/83 and B1618/84 are not output. |
A |
DTC B1613/83 is output. |
B |
DTC B1618/84 is output. |
C |
HINT:
B | ![]() |
GO TO DTC B1613/83 |
C | ![]() |
GO TO DTC B1618/84 |
|
2. |
CHECK CENTER AIRBAG SENSOR ASSEMBLY |
(a) Turn the ignition switch to ON, and wait for at least 60 seconds.
(b) Clear the DTCs stored in memory (See page
).
(c) Turn the ignition switch off.
(d) Turn the ignition switch to ON, and wait for at least 60 seconds.
(e) Check for DTCs (See page ).
OK:
DTC B161A/8A is not output.
HINT:
Codes other than DTC B161A/8A may be output at this time, but they are not related to this check.
OK | ![]() |
USE SIMULATION METHOD TO CHECK |
NG | ![]() |
REPLACE CENTER AIRBAG SENSOR ASSEMBLY |
Precaution
PRECAUTION
1. IGNITION SWITCH EXPRESSIONS
HINT:
The type of ignition switch used on this model differs according to the specifications
of the vehicle. The expressions listed in the table below are used in this section.
Expression
Sw ...
Steering Pad Switch Circuit
DESCRIPTION
This circuit sends an operation signal from the steering pad switch assembly
to the navigation receiver assembly.
If there is an open in the circuit, the audio system cannot be operated using
the steering pad switch assembly.
If there is a s ...
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the power window control
system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
...