B1353

B1353 PAB RESISTANCE TOO LOW OR SHORT (R <= 1 .7 OHM)

CIRCUIT DESCRIPTION

Circuit Description:

Wiring Diagram:

The PAB squib circuit consists of the SRSCM and PAB. It causes the airbag to deploy when the airbag deployment conditions are satisfied. The above DTCs are recorded when the PAB circuit is open or the PAB resistance too high or low is detected in the PAB squib circuit.

INSPECTION PROCEDURE
1. Preparation
1. Disconnect the negative (-) terminal cable from the battery, and wait at least 30 seconds.
2. Remove the DAB module.
3. Disconnect the connectors of the PAB, left and right side airbags, belt pretensioners and SIS.




4. Disconnect the SRSCM connector.

CAUTION: Place the DAB with the front surface facing upward.




2. Check the PAB resistance.

[PREPARATION]
Release the airbag activation prevention mechanism on the SRSCM side of the airbag squib side. Connect the dummy (0957A-38200) and dummy adapter (0957A-38300) to PAB connector of the SRSCM connector side.

NOTE
Before checking the resistance, you have to insert the shorting bar insert plastic that is attached to the diagnosis checker into the SRSCM connector.

[CHECK]
Measure the resistance between the PAB high (+) and the PAB low (-).

1.7 Ohms <= R <= 2.3Ohm

[NG]-> Repair or replace the harness between the SRSCM and the PAB.

[OK]->

3. Check the PAB squib.

[PREPARATION]
1. Turn the ignition switch to LOCK.
2. Disconnect the negative (-) terminal cable from the battery, and wait for 30 seconds.
3. Connect the PAB connector.




4. Connect the negative (-) terminal cable to the battery, and wait for 30 seconds.

[CHECK]
1. Turn the ignition switch to ON, and wait for at least 30 seconds.
2. Clear the malfunction code stored in the memory with the Hi-Scan Pro.
3. Turn the ignition switch to LOCK, and wait for 30 seconds.
4. Turn the ignition switch to ON, and wait for 30 seconds.
5. Using Hi-Scan Pro, check the DTC. There is no DTC.

[HINT]
Codes other than these may be output at this time, but they are not relevant to this procedure.

[NG]-> Replace the PAB.

[OK]-> From the results of the above inspection, the malfunctioning part can now be considered normal.