W/Harness Inspection

Terminal and Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness and terminals.Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check shorting bar/shorting bar release pin and connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
3. Has a problem been found ?
YES
1) Repair as necessary and then go to "Verification of Vehicle Repair" procedure.
NO
1) Go to "Squib Circuit Inspection" procedure.

Squib Circuit Inspection

1. Ignition "OFF".
2. Disconnect (-) terminal cable from battery and wait for 1 minute or more.
3. Remove the PAB module and connect the dummy (0957A-38200) and dummy adapter (0957A-38400) to PAB harness connector.

NOTE: If dummy and dummy adaptor are not able to be prepared, use a known-good PAB or 2 ohms resistor.

CAUTION: Lay Removed PAB facing upward for unexpected air bag deploy.

4. Connect (-) terminal cable to battery and Ignition "ON" & Engine "OFF" and wait for 30 seconds or more.
5. Connect scantool to Data Link Connector (DLC) and clear DTC with scantool and diagnose again.




6. Is DTC present problem ?
YES
1) Go to "Main harness circuit inspection" procedure.
NO
1) Substitute a known-good PAB assembly, and check for proper operation.
If the problem is corrected, replace PAB and then go to "Verification of Vehicle Repair" procedure.

Main harness Circuit Inspection

1. Ignition "OFF"
2. Disconnect the battery (-) terminal cable from the battery and wait at least one minute.
3. Disconnect PAB connector and SRSCM main harness connector.

CAUTION: Lay Removed PAB facing upward for unexpected air bag deploy.

4. Measure resistance between terminal "1" and "2" of the PAB harness connector.
A. Specification : approx. 1 ohm below




5. Is the measured resistance within specifications ?
YES
1) Substitute a known-good SRSCM, and check for proper operation.
If the problem is corrected, replace SRSCM and then go to "Verification of Vehicle Repair" procedure.
NO
1) Substitute the SRS main harness and check for proper operation.
If the problem is corrected, replace SRS main harness and then go to "Verification of Vehicle Repair" procedure.