Many malfunctions in the electrical system are caused by poor connection. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.

Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.

Has a problem been found?

Ignition switch "OFF".

Disconnect (-) terminal cable from battery and wait for 1 minutes or more.

Remove the PAB module and connect the dummy and dummy adapter to PAB connector.

Connect (-) terminal cable to battery and Ignition switch "ON" & Engine "OFF" and wait for 30 seconds or more.

Connect GDS to Data Link Connector(DLC) and clear DTC with GDS and diagnose again.

Is any DTC present?

	▶ Go to "Main Circuit Inspection" procedure.
	▶ If no problems were found with the circuits or connectors, Replace the PAB(Passenger Airbag) and go to "Verification of Vehicle Repair" procedure.

Ignition switch "OFF".

Disconnect the battery (-) terminal cable from the battery and wait at least one minutes.

Disconnect PAB module connector.

Ignition switch "ON" , engine "OFF"

Measure waveform between terminal pin No.2(High) of PAB harness connector and chassis ground.

Measure waveform between terminal pin No.1(Low) of PAB harness connector and chassis ground.

Fig.1) High & Low Signal Waveform of Passenger Air Bag(Disconnected Connector)

Is the measured parameter normal?

	▶ If no problems were found with the circuits or connectors, Replace the SRSCM and go to "Verification of Vehicle Repair" procedure.
	▶ If no problems were found with the circuits or connectors, Replace the SRSCM main circuit and go to "Verification of Vehicle Repair" procedure.