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
Check for open circuit
(a) For an open circuit in the wire harness in Fig. 1, the resistance or
voltage, as described below.
(b) Check the resistance.
Check the resistance
Standard resistance (Fig. 2)
HINT:
Measure the resistance while lightly shaking the
wire harness vertically and horizontally. I ...
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On-vehicle inspection
1. INSPECT FOR COOLANT LEAK
CAUTION:
Do not remove the radiator cap while the engine and
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NOTICE:
Before performing each inspection, turn the A/ ...
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Tire pressure gauge
Remove the tire valve cap.
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Read the pressure using the gauge gradations.
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