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 detects impacts to the vehicle and sends 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 Code |
DTC Detection Condition |
Trouble Area |
---|---|---|
B161A/8A |
One of the following conditions is met:
|
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
When disconnecting the cable from the negative (-) battery terminal while performing
repairs, some systems need to be initialized after the cable is reconnected (See
page ).
PROCEDURE
1. |
CHECK FOR 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 the 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 and B1618 are not output |
A |
DTC B1613 is output |
B |
DTC B1618 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 is not output.
HINT:
Codes other than DTC B161A 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 |
Security Indicator Light Circuit
DESCRIPTION
When the theft deterrent system is in the disarmed state, the security
indicator light flashes continuously when the engine immobiliser system
is set, and does not illuminate when the engine immobiliser system is not
set.
Whe ...
General Maintenance
GENERAL MAINTENANCE
PROCEDURE
1. INSPECT STEERING LINKAGE AND GEAR HOUSING
(a) Check the steering wheel free play.
(b) Check the steering linkage for looseness or damage.
(1) Check that the tie rod ends do not have excessive play.
(2) Check that the dust ...