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.
WIRING DIAGRAM
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.
REPLACE FRONT PASSENGER AIRBAG ASSEMBLY
2 CHECK INSTRUMENT PANEL WIRE (FRONT PASSENGER SIDE SQUIB 2ND STEP CIRCUIT)
Standard resistance
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.
USE SIMULATION METHOD TO CHECK
Sensor signal check by test mode (signal check) (when using sst check wire)
(a) When having replaced the skid control ECU and/or
yaw rate and deceleration sensor, perform zero
point calibration of the yaw rate and deceleration
sensor.
HINT:
If the ignition switch is turned from the ON
position to the ACC or off during test mode
(signal check), DTCs of the signal ...
On-vehicle inspection
1. FRONT SEAT SIDE AIRBAG ASSEMBLY (VEHICLE
NOT INVOLVED IN COLLISION)
Perform a diagnostic system check.
With the front seat side airbag assembly installed on
the vehicle, perform a visual check. If there are any
defects as mentioned below, replace the front
seatback as ...
Installation
1. INSTALL TRANSAXLE HOUSING OIL SEAL
(a) Using SST and a hammer, install a new oil seal.
SST 09316-60011 (09316-00011)
Oil seal installation depth:
-0.5 to 0.5 mm (-0.020 to 0.020 in.)
(b) Coat the lip of the oil seal with MP grease.
2. INSTALL DIFFERENTIAL SIDE BEARING RETAINER OIL SEA ...