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 |
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are listed in order of probability in the "Suspected Area" ...
Removal
REMOVAL
PROCEDURE
1. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM
2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable
is reconnected (See page ).
3. REMOVE FR ...
Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL GENERATOR ROTOR ASSEMBLY
(a) Place the drive end frame on the clutch pulley.
(b) Install the generator rotor assembly to the drive end frame.
2. INSTALL GENERATOR CL ...