Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: Be sure to perform the following procedures before troubleshooting to avoid unexpected airbag deployment.

Turn the ignition switch to the LOCK position.
Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
Disconnect the connectors from the airbag sensor assembly.
Disconnect the connectors from the horn button assembly.
Disconnect the connectors from the front passenger airbag assembly.
Disconnect the connector from the front seat airbag assembly LH.
Disconnect the connector from the front seat airbag assembly RH.
Disconnect the connector from the curtain shield airbag assembly LH.
Disconnect the connector from the curtain shield airbag assembly RH.
Disconnect the connector from the front seat outer belt assembly LH.
Disconnect the connector from the front seat outer belt assembly RH.

Check wire harness (DLC3 - airbag sensor assembly).

CHECK:

Measure the resistance according to IDENTIFYING DLC3 & AIRBAG SENSOR ASSEMBLY CONDITIONS .

Fig 1: Checking Wire Harness (DLC3 - Airbag Sensor Assembly)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

IDENTIFYING DLC3 & AIRBAG SENSOR ASSEMBLY CONDITIONS

Tester Connection	Condition	Specified Condition
D1-13 (TC) - C7-15 (Tc)	Always	Below 1 Ω

NG: Repair or replace wire harness (TC of DLC3 - Tc of airbag sensor assembly).
OK: Go to next step.

Check wire harness (CG of DLC3 - body ground).

CHECK:

Measure the resistance according to IDENTIFYING WIRE HARNESS (CG OF DLC3 - BODY GROUND) CONDITIONS .

Fig 2: Checking Wire Harness (CG Of DLC3 - Body Ground)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

IDENTIFYING WIRE HARNESS (CG OF DLC3 - BODY GROUND) CONDITIONS

Tester Connection	Condition	Specified Condition
D1-4 (CG) - Body ground	Always	Below 1 Ω

NG: Repair or replace wire harness (CG of DLC3 - body ground).
OK: Go to next step.

Check wire harness (Tc of airbag sensor assembly - body ground).

CHECK:

Measure the resistance according to IDENTIFYING WIRE HARNESS (TC OF AIRBAG SENSOR ASSEMBLY - BODY GROUND) CONDITIONS .

Fig 3: Checking Wire Harness (Tc Of Airbag Sensor Assembly - Body Ground)

OK:

IDENTIFYING WIRE HARNESS (TC OF AIRBAG SENSOR ASSEMBLY - BODY GROUND) CONDITIONS

Tester Connection	Condition	Specified Condition
C7-15 (Tc) - Body ground	Always	1 MΩ or higher

NG: Repair or replace wire harness or each ECU.
OK: Replace airbag sensor assembly.