DTC B1154/38 Rear Airbag Sensor RH Circuit Malfunction
DESCRIPTION
The rear airbag sensor RH circuit consists of the center airbag sensor assembly and rear airbag sensor RH.
If the center airbag sensor assembly receives signals from the rear airbag sensor RH, it judges whether or not the SRS should be activated.
DTC B1154/38 is recorded when a malfunction is detected in the rear airbag sensor RH circuit.
DTC No. |
DTC Detecting Condition |
Trouble Area |
B1154/38 |
|
|
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK DTC
OK: DTC B1154/38 is not output. HINT: Codes other than code B1154/38 may be output at this time, but they are not related to this check.
Go to step 2
USE SIMULATION METHOD TO CHECK
2 CHECK CONNECTION OF CONNECTORS
OK: The connectors are connected.
CONNECT CONNECTORS
3 CHECK FLOOR WIRE NO. 2 (OPEN)
NOTICE: Do not forcibly insert a service wire into the terminals of the connector when connecting.
Standard resistance
NOTICE: Do not forcibly insert a service wire into the terminals of the connector when connecting.
Standard resistance
REPAIR OR REPLACE FLOOR WIRE NO. 2
4 CHECK FLOOR WIRE NO. 2 (SHORT TO B+)
Standard voltage
REPAIR OR REPLACE FLOOR WIRE NO. 2
5 CHECK FLOOR WIRE NO. 2 (SHORT TO GROUND)
Standard resistance
REPAIR OR REPLACE FLOOR WIRE NO. 2
6 CHECK FLOOR WIRE NO. 2 (SHORT)
Standard resistance
REPAIR OR REPLACE FLOOR WIRE NO. 2
7 CHECK REAR AIRBAG SENSOR RH
Result
HINT: Codes other than DTC B1154/38 and B1155/39 may be output at this time, but they are not related to this check.
REPLACE CENTER AIRBAG SENSOR ASSEMBLY
REPLACE REAR AIRBAG SENSOR RH
USE SIMULATION METHOD TO CHECK
DTC check / clear
1. CHECK DTC (USING INTELLIGENT TESTER)
Checking DTCs.
Connect the intelligent tester to the DLC3.
Turn the ignition switch ON.
Read DTCs by following the prompts on the
tester screen.
HINT:
Refer to the intelligent tester operator's manual
for furthe ...
If a warning light turns on
or a warning buzzer
sounds
Calmly perform the following actions if any of the warning lights
comes on or flashes. If a light comes on or flashes, but then
goes off, this does not necessarily indicate a malfunction in the
system. However, if this continues to occur, have the vehicle
inspected by your Toyota dealer.
Warnin ...
Disposal
1. DISPOSE OF FRONT SEAT OUTER BELT ASSEMBLY
(WHEN INSTALLED IN VEHICLE)
NOTICE:
Never dispose of a front seat outer belt assembly
with an deactivated pretensioner.
The seat belt pretensioner produces an exploding
sound when it activates, so perform the operation
outdoors w ...