Toyota RAV4 manuals

Toyota Sienna Service Manual: Short in Front Passenger Side Squib 2nd Step Circuit

DTC B1185/57 Short 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 B1185/57 is recorded when a short circuit is detected in the front passenger side squib 2nd step circuit.

DESCRIPTION

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

HINT:

1 CHECK FRONT PASSENGER AIRBAG ASSEMBLY (FRONT PASSENGER SIDE SQUIB 2ND STEP)

CHECK FRONT PASSENGER AIRBAG ASSEMBLY

  1. Turn the ignition switch to the LOCK position.
  2.  Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
  3.  Disconnect the connectors from the front passenger airbag assembly.
  4.  Connect the black wire side of SST (resistance 2.1 Ω) to the instrument panel wire.

    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

  5.  Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
  6.  Turn the ignition switch to the ON position, and wait for at least 60 seconds.
  7.  Clear the DTCs stored in memory.
  8.  Turn the ignition switch to the LOCK position.
  9.  Turn the ignition switch to the ON position, and wait for at least 60 seconds.
  10.  Check the DTCs.

OK: DTC B1185/57 is not output.

HINT: Codes other than DTC B1185/57 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)

CHECK INSTRUMENT PANEL WIRE

  1. Turn the ignition switch to the LOCK position.
  2.  Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
  3.  Disconnect the SST (resistance 2.1 Ω) from the instrument panel wire.
  4.  Disconnect the connector from the center airbag sensor assembly.
  5.  Release the activation prevention mechanism built into connector "B".
  6.  Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

3 CHECK CENTER AIRBAG SENSOR ASSEMBLY

CHECK CENTER AIRBAG SENSOR ASSEMBLY

  1. Connect the connectors to the front passenger airbag assembly and the center airbag sensor assembly.
  2.  Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
  3.  Turn the ignition switch to the ON position, and wait for at least 60 seconds.
  4.  Clear the DTCs stored in memory.
  5.  Turn the ignition switch to the LOCK position.
  6.  Turn the ignition switch to the ON position, and wait for at least 60 seconds.
  7.  Check the DTCs.

OK: DTC B1185/57 is not output.

HINT: Codes other than DTC B1185/57 may be output at this time, but they are not related to this check.

USE SIMULATION METHOD TO CHECK

Short to B+ in Driver Side Squib 2nd Step Circuit
DTC B1183/22 Short to B+ in Driver Side Squib 2nd Step Circuit DESCRIPTION The driver side squib 2nd step circuit consists of the center airbag sensor assembly, the spiral cable and the steering ...

Open in Front Passenger Side Squib 2nd Step Circuit
DTC B1186/58 Open 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 ...

Other materials:

Removal
HINT: On the RH side, use the same procedures as on the LH side. 1. REMOVE SLIDE DOOR Remove the rear door scuff plate (See page IR-7). Remove the back door scuff plate (See page ED- 214). Remove the quarter trim panel (See page IR-9). Remove the upper rail cushion from the rail up ...

Terminals of ecu
1. A/C AMPLIFIER (a) Waveform 1: (b) Waveform 2: (c) Waveform 3: ...

Idle Control System Malfunction
DTC P0505 Idle Control System Malfunction DESCRIPTION The idling speed is controlled by the ETCS (Electronic Throttle Control System). The ETCS is comprised of: 1) the one valve type throttle body; 2) the throttle actuator, which operates the throttle valve; 3) the Throttle Position (TP) sen ...

В© 2011-2019 Copyright www.tsienna.net