CHECK FRONT PASSENGER AIRBAG ASSEMBLY (FRONT PASSENGER SIDE SQUIB 2ND STEP)
CHECK NO. 2 INSTRUMENT PANEL WIRE
DTC B1815/54 Short in Front Passenger Side Squib 2nd Step Circuit |
DTC B1816/54 Open in Front Passenger Side Squib 2nd Step Circuit |
DTC B1817/54 Short to GND in Front Passenger Side Squib 2nd Step Circuit |
DTC B1818/54 Short to B+ in Front Passenger Side Squib 2nd Step Circuit |
DESCRIPTION
The front passenger side squib 2nd step circuit consists of the center airbag sensor and the front passenger airbag.The circuit instructs the SRS to deploy when the deployment conditions are met.
These DTCs are recorded when a malfunction is detected in the front passenger side squib 2nd step circuit.
| DTC No. | DTC Detection Condition | Trouble Area |
| B1815/54 | Center airbag sensor receives a line short signal 5 times in the front passenger side squib 2nd step circuit during primary check. |
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| B1816/54 | Center airbag sensor receives an open signal in the front passenger side squib 2nd step circuit for 2 seconds. |
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| B1817/54 | Center airbag sensor receives a short to ground signal in the front passenger side squib 2nd step circuit for 0.5 seconds. |
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| B1818/54 | Center airbag sensor receives a short to B+ signal in the front passenger side squib 2nd step circuit for 0.5 seconds. |
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WIRING DIAGRAM
INSPECTION PROCEDURE
- HINT:
- Perform the simulation method by selecting the "Check Mode" (signal check) with the intelligent tester (RAV4_ACA30 RM000000XFF05JX.html).
- After selecting the "Check Mode" (signal check), perform the simulation method by wiggling each connector of the airbag system or driving the vehicle on a city or rough road (RAV4_ACA30 RM000000XFF05JX.html).
| 1.CHECK FRONT PASSENGER AIRBAG ASSEMBLY (FRONT PASSENGER SIDE SQUIB 2ND STEP) |
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Turn the ignition switch off.
Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
Disconnect the connector from the front passenger airbag.
Connect SST (resistance 2.1 Ω) to connector E.
- CAUTION:
- Never connect a tester to the front passenger airbag (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 SST into the terminals of the connector when connecting.
- Insert SST straight into the terminals of the connector.
- SST
- 09843-18061
Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
Turn the ignition switch on (IG), and wait for at least 60 seconds.
Clear the DTCs (RAV4_ACA30 RM000000XFE06SX.html).
Turn the ignition switch off.
Turn the ignition switch on (IG), and wait for at least 60 seconds.
Check the DTCs (RAV4_ACA30 RM000000XFE06SX.html).
- OK:
- DTC B1815, B1816, B1817, B1818 or 54 is not output.
- HINT:
- Codes other than DTC B1815, B1816, B1817, B1818 and 54 may be output at this time, but they are not related to this check.
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| NG | |
| 2.CHECK CONNECTOR |
Turn the ignition switch off.
Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
Disconnect SST from the instrument panel wire.
Check that the instrument panel wire connectors (on the front passenger side airbag) are not damaged.
- OK:
- Lock button is not disengaged, and claw of lock is not deformed or damaged.
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| OK | |
| 3.CHECK INSTRUMENT PANEL WIRE |
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Disconnect the connector from the center airbag sensor.
Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
Turn the ignition switch on (IG).
Measure the voltage of the wire harness side connector.
- Standard voltage:
Tester Connection Specified Condition g2-3 (P2+) - Body ground Below 1 V g2-4 (P2-) - Body ground Below 1 V
Turn the ignition switch off.
Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
Measure the resistance of the wire harness side connector.
- Standard resistance:
Tester Connection Specified Condition g2-2 (P2+) - g2-1 (P2-) Below 1 Ω g2-2 (P2+) - Body ground 1 MΩ or higher g2-1 (P2-) - Body ground 1 MΩ or higher
Release the activation prevention mechanism built into connector B (RAV4_ACA30 RM000000XFD06JX.html).
Measure the resistance of the wire harness side connector.
- Standard resistance:
Tester Connection Specified Condition g2-2 (P2+) - g2-1 (P2-) 1 MΩ or higher
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| NG | |
| 4.CHECK NO. 2 INSTRUMENT PANEL WIRE |
Disconnect the No. 2 instrument panel wire connector from the instrument panel wire.
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Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
Turn the ignition switch on (IG).
Measure the voltage of the wire harness side connector.
- Standard voltage:
Tester Connection Specified Condition g2-2 (P2+) - Body ground Below 1 V g2-1 (P2-) - Body ground Below 1 V
Turn the ignition switch off.
Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
Measure the resistance of the wire harness side connector.
- Standard resistance:
Tester Connection Specified Condition g2-2 (P2+) - Eg1-3 Below 1 Ω g2-1 (P2-) - Eg1-4 Below 1 Ω g2-2 (P2+) - g2-1 (P2-) Below 1 Ω g2-2 (P2+) - Body ground 1 MΩ or higher g2-1 (P2-) - Body ground 1 MΩ or higher
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| OK | ||
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