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DTC 66

DTC 66

DTC DTTECTING CONDITION:


• Seat belt pretensioner (LH) circuit is shorted to the power supply.

• Pretensioner is faulty.

• Pretensioner harness is faulty.

• Airbag control module is faulty.


Important
• Before diagnosing the airbag system, be sure to turn the ignition switch to OFF, disconnect the ground cable from battery, and wait more than 20 seconds before starting to work.

• Before replacing the airbag module, seat belt pretensioner roll connector, control module and the sensor, reconnect each part and confirm that the warning light operates properly.

• When inspecting the side airbag harness, disconnect the side airbag module connector and seat belt pretensioner connector for the safety reasons.


WIRING DIAGRAM:


CHECK SEAT BELT PRETENSIONER.

Turn the ignition switch to OFF, disconnect the battery ground cable, and wait more than 20 seconds.

Disconnect the connector (AB19) from the seat belt pretensioner (LH).

Connect the connector (1N) in test harness N to (AB19).

Connect the airbag resistor to the connector (2N) in test harness N.

Connect the battery ground cable and turn the ignition switch to ON.

Does the airbag warning light operate properly?

Yes

Replace the seat belt pretensioner (LH).


No


CHECK SIDE AIRBAG HARNESS (LH).

Turn the ignition switch to OFF, disconnect the battery ground cable, and wait more than 20 seconds.

Disconnect the airbag resistor from the test harness.

Disconnect the connector (AB29) from (AB9).

Disconnect the connectors (AB7) and (AB8) from the airbag control module.

Connect the connector (1R) in test harness R to the connector (AB7).

Connect the battery ground cable and turn the ignition switch to ON.

Measure the voltage between connector (3R) in test harness R and the chassis ground.

Connector & terminal

(3R) No. 11 (+) — Chassis ground (−):

(3R) No. 13 (+) — Chassis ground (−):

Is the voltage less than 1 V?

Yes

Replace the airbag control module.


No

Replace the body harness with side airbag harness.