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.
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.
USE SIMULATION METHOD TO CHECK
2 CHECK CONNECTION OF CONNECTORS
OK: The connectors are connected.
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
4 CHECK FLOOR WIRE NO. 2 (SHORT TO B+)
Standard voltage
5 CHECK FLOOR WIRE NO. 2 (SHORT TO GROUND)
Standard resistance
6 CHECK FLOOR WIRE NO. 2 (SHORT)
Standard resistance
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.
USE SIMULATION METHOD TO CHECK
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DESCRIPTION
DTC No.
DTC Detecting Condition
Troub ...
Disassembly
1. REMOVE COOLER DRYER
(a) Using a hexagon wrench 14 mm (0.55 in.), remove
the cap from the modulator.
(b) Remove the O-ring from the cap.
(c) Using needle nose pliers, remove the cooler dryer. ...
Open in Pump Motor Circuit
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DESCRIPTION
The motor relay (semiconductor relay) is housed in the brake actuator
assembly and drives the pump
motor based on a signal from the skid control ECU.
WIRING DIAGRAM
Refer to DTCs C0273/13 and C0274/14 (See page BC-31).
INSPECTION PROCED ...