Toyota RAV4 manuals

Toyota Sienna Service Manual: 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 airbag assembly.

The circuit instructs the SRS to deploy when deployment conditions are met.

DTC B1186/58 is recorded when an open circuit is detected in the front passenger side squib 2nd step circuit

DESCRIPTION

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 B1186/58 is not output.

HINT: Codes other than DTC B1186/58 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.  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 B1186/58 is not output.

HINT: Codes other than DTC B1186/58 may be output at this time, but they are not related to this check.

USE SIMULATION METHOD TO CHECK

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 passenge ...

Short to GND in Front Passenger Side Squib 2nd Step Circuit
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 p ...

Other materials:

Diagnosis system
1. DESCRIPTION When troubleshooting a vehicle with the diagnosis system, the only difference from the usual troubleshooting procedure is connecting the intelligent tester to the vehicle and reading various data output from the vehicle's clearance warning ECU. The clearance warning ECU record ...

Adjustment
1. VEHICLE PREPARATION FOR HEADLIGHT AIMING ADJUSTMENT  Prepare the vehicle:  Ensure there is no damage or deformation to the body around the headlights.  Fill the fuel tank.  Make sure that the oil is filled to the specified level.  Make sure that the c ...

Removal
1. DRAIN POWER STEERING FLUID 2. REMOVE FRONT WHEEL RH 3. REMOVE FRONT FENDER APRON SEAL RH (See page EM-26) 4. REMOVE FAN AND GENERATOR V BELT (See page EM-6) 5. DISCONNECT NO. 1 FLUID RESERVOIR TO PUMP HOSE (a) Slide the clip and disconnect the No. 1 fluid reservoir to pump hose from t ...

В© 2011-2024 Copyright www.tsienna.net