DTC B1187/55 Short to GND in Front Passenger Side Squib 2nd Step Circuit
DESCRIPTION
The front passenger side squib 2nd step circuit consists of the center airbag sensor assembly and the front passenger airbag assembly.
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B1187/55 is recorded when a short to ground is detected in the front passenger side squib 2nd step circuit.
DTC No. |
DTC Detecting Condition |
Trouble Area |
B1187/55 |
|
|
INSPECTION PROCEDURE
HINT:
1 CHECK FRONT PASSENGER AIRBAG ASSEMBLY (FRONT PASSENGER SIDE SQUIB 2ND STEP)
CAUTION: Never connect a tester to the front passenger airbag assembly (front passenger side squib 2nd step) for measurement, as this may lead to a serious injury due to airbag deployment.
NOTICE: Do not forcibly insert the SST into the terminals of the connector when connecting.
Insert the SST straight into the terminals of the connector.
SST 09843-18060
OK: DTC B1187/55 is not output. HINT: Codes other than DTC B1187/55 may be output at this time, but they are not related to this check.
Go to step 2
REPLACE FRONT PASSENGER AIRBAG ASSEMBLY
2 CHECK INSTRUMENT PANEL WIRE (FRONT PASSENGER SIDE SQUIB 2ND STEP CIRCUIT)
Standard resistance
REPAIR OR REPLACE INSTRUMENT
PANEL
WIRE
3 CHECK CENTER AIRBAG SENSOR ASSEMBLY
OK: DTC B1187/55 is not output. HINT: Codes other than DTC B1187/55 may be output at this time, but they are not related to this check.
REPLACE CENTER AIRBAG SENSOR
ASSEMBLY
USE SIMULATION METHOD TO CHECK
Cooling fan ecu
ON-VEHICLE INSPECTION
1. INSPECT COOLING FAN ECU
(a) Inspect the input voltage.
(1) Disconnect the cooling fan ECU connector.
(2) Turn the ignition switch to the ON position.
Check the voltage of the +B terminal of the
disconnected wire harness side connector.
Standard voltage:
9 t ...
Opening and closing
Front moon roof
Vehicles without a rear moon
roof
Vehicles with a rear moon roof
Opens the moon roof*
The moon roof will stop at the tilt up position once.
To tilt down, press the opposite side of the switch.
Press the switch again to open.
Closes the moon roof*
...
Open in ABS Motor Relay Circuit
DESCRIPTION
The ABS motor relay supplies power to the ABS pump motor. While the ABS is
activated, the ECU turns
the motor relay on and operates the ABS pump motor.
If the voltage supplied to the motor relay (+BM) is below the DTCs detection
threshold due to low voltage
from the battery ...