DESCRIPTION
The side collision sensor RH circuit (bus 2) consists of the airbag sensor assembly and floor side airbag sensor RH.
The floor side airbag sensor RH detects impacts to the vehicle and sends signals to the airbag sensor assembly to determine if the airbags and pretensioners should be deployed.
These DTCs are stored when a malfunction is detected in the side collision sensor RH circuit (bus 2).
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Test Mode / Check Mode |
---|---|---|---|---|
B162B/85 |
Side Airbag Sensor Assembly No.2 Lost Communication (RH) |
Any of the following conditions is met:
|
|
Does not apply to test/check mode |
B162C/85 |
Side Airbag Sensor Assembly No.2 Initialization Error (RH) |
Any of the following conditions is met:
|
|
Does not apply to test/check mode |
Vehicle Condition |
|||||||
---|---|---|---|---|---|---|---|
Pattern 1 |
Pattern 2 |
Pattern 3 |
Pattern 4 |
Pattern 5 |
Pattern 6 |
||
Diagnosis Condition |
Ignition switch ON |
○ |
○ |
○ |
○ |
○ |
○ |
Malfunction Status |
The airbag sensor assembly detects a line short in the side collision sensor RH circuit (bus 2) |
○ |
- |
- |
- |
- |
- |
The airbag sensor assembly detects a short to ground in the side collision sensor RH circuit (bus 2) |
- |
○ |
- |
- |
- |
- |
|
The airbag sensor assembly detects a short to B+ in the side collision sensor RH circuit (bus 2) |
- |
- |
○ |
- |
- |
- |
|
The airbag sensor assembly detects an open in the side collision sensor RH circuit (bus 2) |
- |
- |
- |
○ |
- |
- |
|
Floor side airbag sensor RH malfunction |
- |
- |
- |
- |
○ |
- |
|
Airbag sensor assembly malfunction |
- |
- |
- |
- |
- |
○ |
|
Detection Time |
- |
- |
- |
- |
- |
- |
|
Number of Trips |
1 trip |
1 trip |
1 trip |
1 trip |
1 trip |
1 trip |
Vehicle Condition |
|||||||
---|---|---|---|---|---|---|---|
Pattern 1 |
Pattern 2 |
Pattern 3 |
Pattern 4 |
Pattern 5 |
Pattern 6 |
||
Diagnosis Condition |
Ignition switch ON |
○ |
○ |
○ |
○ |
○ |
○ |
Malfunction Status |
The airbag sensor assembly detects a line short in the side collision sensor RH circuit (bus 2) |
○ |
- |
- |
- |
- |
- |
The airbag sensor assembly detects a short to ground in the side collision sensor RH circuit (bus 2) |
- |
○ |
- |
- |
- |
- |
|
The airbag sensor assembly detects a short to B+ in the side collision sensor RH circuit (bus 2) |
- |
- |
○ |
- |
- |
- |
|
The airbag sensor assembly detects an open in the side collision sensor RH circuit (bus 2) |
- |
- |
- |
○ |
- |
- |
|
Floor side airbag sensor RH malfunction |
- |
- |
- |
- |
○ |
- |
|
Airbag sensor assembly malfunction |
- |
- |
- |
- |
- |
○ |
|
Detection Time |
- |
- |
- |
- |
- |
- |
|
Number of Trips |
1 trip |
1 trip |
1 trip |
1 trip |
1 trip |
1 trip |
HINT:
DTC will be output when conditions for either of the patterns in the table above are met.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.
Click here
PROCEDURE
1. |
CHECK CONNECTORS |
(a) Turn the ignition switch off.
(b) Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
(c) Check that the connectors are properly connected to the airbag sensor assembly and floor side airbag sensor RH.
OK:
The connectors are properly connected.
HINT:
If the connectors are not properly connected, reconnect the connectors and proceed to the next inspection.
(d) Disconnect the connectors from the airbag sensor assembly and floor side airbag sensor RH.
(e) Check that the terminals of the connectors are not deformed or damaged.
OK:
The terminals are not deformed or damaged.
NG | ![]() |
REPLACE FLOOR WIRE |
|
2. |
CHECK FLOOR WIRE (OPEN) |
(a) w/o Occupant Classification System
(1) Using a service wire, connect terminals 15 (BCR+) and 14 (BCR-) of connector B. NOTICE: Do not forcibly insert the service wire into the terminals of the connector when connecting the wire. |
|
(2) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
M34-2 (BFR+) - M34-1 (BFR-) |
Always |
Below 1 Ω |
(3) Disconnect the service wire from connector B.
(b) w/ Occupant Classification System
(1) Using a service wire, connect terminals 20 (BCR+) and 19 (BCR-) of connector B. NOTICE: Do not forcibly insert the service wire into the terminals of the connector when connecting the wire. |
|
(2) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
M34-2 (BFR+) - M34-1 (BFR-) |
Always |
Below 1 Ω |
(3) Disconnect the service wire from connector B.
NG | ![]() |
REPLACE FLOOR WIRE |
|
3. |
CHECK FLOOR WIRE (SHORT) |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
NG | ![]() |
REPLACE FLOOR WIRE |
|
4. |
CHECK FLOOR WIRE (SHORT TO B+) |
(a) Connect the cable to the negative (-) battery terminal. |
|
(b) Turn the ignition switch off.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
M34-2 (BFR+) - Body ground |
Ignition switch ON |
Below 1 V |
M34-1 (BFR-) - Body ground |
Ignition switch ON |
Below 1 V |
(d) Turn the ignition switch off.
(e) Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
NG | ![]() |
REPLACE FLOOR WIRE |
|
5. |
CHECK FLOOR WIRE (SHORT TO GROUND) |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
NG | ![]() |
REPLACE FLOOR WIRE |
|
6. |
CHECK FLOOR SIDE AIRBAG SENSOR RH |
(a) Connect the connector to the airbag sensor assembly. |
|
(b) Interchange the floor side airbag sensor RH with LH and connect the connectors.
(c) Connect the cable to the negative (-) battery terminal.
(d) Clear the DTCs stored in memory.
Click here
(e) Turn the ignition switch off.
(f) Turn the ignition switch ON, and wait for at least 60 seconds.
(g) Check for DTCs.
Click here
HINT:
Codes other than DTCs B162B/85, B162C/85, B163B/86 and B163C/86 may be output at this time, but they are not related to this check.
Result |
Proceed to |
---|---|
DTC B162B/85 or B162C/85 is output. |
A |
DTC B163B/86 or B163C/86 is output. |
B |
DTCs B162B/85, B162C/85, B163B/86 and B163C/86 are not output. |
C |
(h) Turn the ignition switch off.
(i) Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
(j) Return the floor side airbag sensor RH and LH to their original positions and connect the connectors.
A | ![]() |
REPLACE AIRBAG SENSOR ASSEMBLY |
B | ![]() |
REPLACE FLOOR SIDE AIRBAG SENSOR RH |
C | ![]() |
USE SIMULATION METHOD TO CHECK |
Toyota CH-R Service Manual > Revolution Sensor: Removal
REMOVAL
CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization, or registration)
that must be performed after parts are removed, installed, or replaced during the
transmission revolution sensor removal/installation are shown below.
Necessary Procedure After ...
Toyota CH-R Service Manual > Lin Communication System: Rear Door RH ECU Communication Stop (B2323)
DESCRIPTION
This DTC is stored when LIN communication between the power window regulator
motor assembly (for rear RH door) and main body ECU (multiplex network body ECU)
stops for 10 seconds or more.
DTC No.
Detection Item
DTC Detection Condition
Tro ...