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Subaru Legacy Service Manual: Dtc b1652 half connection in airbag sensor assembly connector

Subaru Legacy Service Manual / Airbag system (diagnostics) / Diagnostic chart with trouble code / Dtc b1652 half connection in airbag sensor assembly connector

DIAGNOSIS START CONDITION:

Ignition voltage is 10 V to 16 V.

DTC DETECTING CONDITION:

Connection failure of airbag CM connector

CAUTION:

Before performing diagnosis, refer to “CAUTION” in “General Description”. General Description > CAUTION

STEPCHECKYESNO

1.CHECK CONNECTOR.

Check for poor contact of the airbag control module connector.

Is there poor contact-

When the connector is not fully connected, reconnect the connector correctly. Replace the faulty harness if the connector is faulty. (Replace the airbag main harness along with body harness. Or replace the airbag rear harness along with body harness.)

Diagnostic Chart with Trouble Code > DTC B1652 HALF CONNECTION IN AIRBAG SENSOR ASSEMBLY CONNECTOR

2.CHECK CONNECTOR.

Check the airbag main harness connector and the airbag rear harness connector.

Is there poor contact-

When the connector is not fully connected, reconnect the connector correctly. Replace the faulty harness if the connector is faulty. (Replace the airbag main harness along with body harness. Or replace the airbag rear harness along with body harness.)

Even if DTC is detected, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

NOTE:

In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

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