Diagnostic Test

1) MEASURE FUSED B(+) CIRCUIT VOLTAGE

Fig 1: Measuring Fused B(+) Circuit Voltage
Courtesy of DAIMLERCHRYSLER CORP.

NOTE: Inspect Fuse 2 located in the Underhood Accessory Fuse Block. If the fuse is open, repair the cause of the open first before continuing.

NOTE: The Passenger Seat Occupant Simulator is located behind the passenger footwell near the Power Amplifier.

NOTE: When reconnecting the Airbag System components, the ignition must be turned off and the battery must be disconnected.

WARNING: TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING.

Disconnect the Passenger Seat Occupant Simulator harness connector.

NOTE: Check connector - Clean/repair as necessary.

WARNING: TURN THE IGNITION ON, THEN RECONNECT THE BATTERY.

Measure the voltage of the Fused B(+) circuit at the Passenger Seat Occupant Simulator harness connector.

Is the voltage above 10 volts?

Yes
1. Go to step 2).
No
1. Repair the Passenger Seat Occupant Simulator Fused B(+) circuit.
2. Perform AIRBAG VERIFICATION TEST .
2) MEASURE THE PASSENGER AIRBAG ON/OFF SWITCH SIGNAL CIRCUIT RESISTANCE

Fig 2: Measuring Passenger Airbag On/Off Switch Signal Circuit Resistance
Courtesy of DAIMLERCHRYSLER CORP.

WARNING: TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING.

Disconnect the ORC harness connector.

NOTE: Check connector - Clean/repair as necessary.

Measure the resistance of the Passenger Airbag ON/OFF Switch Signal circuit from the ORC harness connector to the Passenger Seat Occupant Simulator harness connector.

Is the resistance below 5.0 ohms?

Yes
1. Go to step 3).
No
1. Repair the Passenger Airbag On/Off Switch Signal circuit for an open.
2. Perform AIRBAG VERIFICATION TEST .
  NOTE: When reconnecting the Airbag System components, the ignition must be turned off and the battery must be disconnected.
3) MEASURE THE PASSENGER AIRBAG ON/OFF SWITCH SIGNAL CIRCUIT RESISTANCE

Fig 3: Measuring Passenger Airbag On/Off Switch Signal Circuit Resistance
Courtesy of DAIMLERCHRYSLER CORP.

With the ignition off.

Measure the resistance between ground and the Passenger Airbag On/Off Switch Signal circuit.

Is the resistance below 10K ohms?

Yes
1. Repair the Passenger Airbag On/Off Switch Signal circuit for a short to ground.
2. Perform AIRBAG VERIFICATION TEST .
  NOTE: When reconnecting the Airbag System components, the ignition must be turned off and the battery must be disconnected.
No
1. Go to step 4).
4) MEASURE THE VOLTAGE OF THE PASSENGER AIRBAG ON/OFF SWITCH SIGNAL CIRCUIT

Fig 4: Measuring Voltage Of Passenger Airbag On/Off Switch Signal Circuit
Courtesy of DAIMLERCHRYSLER CORP.

WARNING: TURN THE IGNITION ON, THEN RECONNECT THE BATTERY.

Measure the voltage of the Passenger Airbag On/Off Switch Signal circuit at the Passenger Seat Occupant Simulator harness connector.

Is voltage present?

Yes
1. Repair the Passenger Airbag On/Off Switch Signal circuit for a short to voltage.
2. Perform AIRBAG VERIFICATION TEST .
  NOTE: When reconnecting the Airbag System components, the ignition must be turned off and the battery must be disconnected.
No
1. Go to step 5).
5) MEASURE THE PASSENGER SEAT OCCUPANT SIMULATOR GROUND CIRCUIT RESISTANCE

Fig 5: Measuring Passenger Seat Occupant Simulator Ground Circuit Resistance
Courtesy of DAIMLERCHRYSLER CORP.

WARNING: TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING.

Measure the resistance between ground and the Passenger Seat Occupant Simulator Ground circuit.

Is the resistance below 5.0 ohms?

Yes
1. Replace the Passenger Seat Occupant Simulator. (Refer to ELECTRICAL/RESTRAINTS/ON/OFF SWITCH INDICATOR MODULE - REMOVAL) .
2. Perform AIRBAG VERIFICATION TEST .
No
1. Repair the Passenger Seat Occupant Simulator Ground circuit for an open.
2. Perform AIRBAG VERIFICATION TEST .
  NOTE: When reconnecting the Airbag System components, the ignition must be turned off and the battery must be disconnected.