
TEST ACTION APPLICABILITY
1 Ensure that the battery is fully charged.
WARNING: TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND
WAIT TWO MINUTES BEFORE PROCEEDING.
WARNING: IF THE OCCUPANT RESTRAINT CONTROLLER IS DROPPED
AT ANY TIME, IT MUST BE REPLACED.
Disconnect the Occupant Restraint Controller Connector.
NOTE: Check connectors - Clean and repair as necessary.
WARNING: TURN IGNITION ON, THEN RECONNECT THE BATTERY.
With the DRBIIIt, read the active FCM DTCs.
Turn the ignition off.
With the DRBIIIt, read the active FCM DTCs.
NOTE: The ORC RUN-START DRIVER OPEN code may not set until the
ignition key is turned off.
Select the active FCM DTC displayed on the DRB.All
1. ORC RUN-START DRIVER OPEN
Go To 2
2. ORC RUN-START DRIVER OVER VOLTAGE
Go To 5
3. ORC RUN-START SHORT TO GROUND
Go To 6
4. ORC RUN-START DRIVER OVER CURRENT
Go To 6
5. ORC RUN-START DRIVER OVER TEMP
Go To 6
6. None of the above.
Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
NOTE: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
2WARNING: TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND
WAIT TWO MINUTES BEFORE PROCEEDING.
WARNING: IF THE OCCUPANT RESTRAINT CONTROLLER IS DROPPED
AT ANY TIME, IT MUST BE REPLACED.
Disconnect the Occupant Restraint Controller.
TURN THE IGNITION ON, THEN RECONNECT THE BATTERY.
Connect a test light to ground and the ORC Run-Start Driver circuit at the ORC
connector.
Cycle the ignition switch from ON to OFF.
With the DRBIIIt, read the active FCM DTCs.
Does the DRB show an active ORC RUN-START DRIVER OPEN code?All
Ye s®Go To 3
No®Replace the Occupant Restraint Controller in accordance with
Service Instructions. WARNING: make sure the battery is discon-
nected and wait 2 minutes before proceeding.
Perform AIRBAG VERIFICATION TEST - VER 1.
NOTE: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
43
AIRBAG
FCM, ORC RUN-START DRIVER OPEN - ACTIVE ÐContinued

TEST ACTION APPLICABILITY
1 Ensure that the battery is fully charged.
Turn the ignition on.
With the DRBIIIt, read the active FCM DTCs.
NOTE: The SIACM RUN-START DRIVER OPEN code may not set until the
ignition key is turned off.
Turn the ignition off.
With the DRBIIIt, read the active SIACM FCM Diagnostic Trouble Codes.
Select the active SIACM FCM code displayed on the DRB.All
1. SIACM RUN-START DRIVER OPEN
Go To 2
2. SIACM RUN-START DRIVER OVER VOLTAGE
Go To 7
3. SIACM RUN-START SHORT TO GROUND
Go To 8
4. SIACM RUN-START DRIVER OVER CURRENT
Go To 8
5. SIACM RUN-START DRIVER OVER TEMP
Go To 8
NOTE: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
2WARNING: TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND
WAIT TWO MINUTES BEFORE PROCEEDING.
WARNING: IF THE SIDE IMPACT AIRBAG CONTROL MODULE IS
DROPPED AT ANY TIME, IT MUST BE REPLACED.
Disconnect the Left Side Impact Airbag Control Module.
NOTE: When the ignition key is turned off, the FCM will supply a diagnostic
voltage to the SIACM Run-Start Driver circuit for approximately 60 sec-
onds.
Measure the voltage of the SIACM Run-Start Driver circuit between the Left Side
Impact Airbag Control Module connector and ground.
Turn the ignition switch ON and observe the diagnostic voltage on the SIACM
Run-Start circuit.
Select the results from the list below?All
Is the voltage between 1.0 and 2.2 volts
Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
Is the voltage between 2.4 and 5.0 volts
Go To 3
No Voltage present?
Go To 4
NOTE: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
48
AIRBAG
FCM, SIACM RUN-START DRIVER OPEN - ACTIVE ÐContinued

Symptom:
LEFT SIACM, SEAT SQUIB SHORT TO BATTERY - ACTIVE
When Monitored and Set Condition:
LEFT SIACM, SEAT SQUIB SHORT TO BATTERY - ACTIVE
When Monitored: When the ignition is on, the Left SIACM monitors the voltage of the left
Seat Squib circuits.
Set Condition: The Left SIACM has detected high voltage on the Left Seat Squib circuits.
POSSIBLE CAUSES
LEFT SEAT AIRBAG CIRCUIT SHORT TO BATTERY
LEFT SEAT SQUIB LINE 1 SHORT TO BATTERY
LEFT SEAT SQUIB LINE 2 SHORT TO BATTERY
LSIACM, LEFT SEAT SQUIB CIRCUIT SHORT TO BATTERY
TEST ACTION APPLICABILITY
1WARNING: TURN IGNITION OFF, DISCONNECT THE BATTERY AND WAIT
TWO MINUTES BEFORE PROCEEDING.
WARNING: DO NOT PLACE AN INTACT UNDEPLOYED SEAT BACK PAD-
DED SIDE DOWN ON A HARD SURFACE, THE AIRBAG WILL PROPEL
INTO THE AIR IF ACCIDENTALLY DEPLOYED, AND COULD RESULT IN
SERIOUS OR FATAL INJURY.
Disconnect the Left Seat Airbag inline connector located between the seat back and
seat cushion.
Do not disconnect the airbag connectors at the base of the seat.
NOTE: Check connectors - Clean and repair as necessary.
Connect the SRS Load Tool 8443 Passenger cable to he Left Seat Airbag inline
connector.
Turn Ignition On, then reconnect the Battery.
With the DRBIIIt, read active Side Airbag DTC's.
Does the DRBIIItdisplay LEFT SEAT SQUIB SHORT TO BATTERY?All
Ye s®Go To 2
No®Replace Left Seat Airbag.
Perform AIRBAG VERIFICATION TEST - VER 1.
NOTE: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.
64
AIRBAG

Symptom:
LEFT SIACM, SEAT SQUIB SHORT TO GROUND - ACTIVE
When Monitored and Set Condition:
LEFT SIACM, SEAT SQUIB SHORT TO GROUND - ACTIVE
When Monitored: When the ignition is on, the Left SIACM monitors the resistance of the
left Seat Squib circuits for low resistance.
Set Condition: The Left SIACM has detected a short to ground in the left Seat Squib
circuits.
POSSIBLE CAUSES
LEFT SEAT AIRBAG CIRCUIT SHORT TO GROUND
LEFT SEAT SQUIB LINE 1 SHORT TO GROUND
LEFT SEAT SQUIB LINE 2 SHORT TO GROUND
LSIACM, LEFT SEAT SQUIB CIRCUIT SHORT TO GROUND
TEST ACTION APPLICABILITY
1WARNING: TURN IGNITION OFF, DISCONNECT THE BATTERY AND WAIT
TWO MINUTES BEFORE PROCEEDING.
WARNING: DO NOT PLACE AN INTACT UNDEPLOYED SEAT BACK PAD-
DED SIDE DOWN ON A HARD SURFACE, THE AIRBAG WILL PROPEL
INTO THE AIR IF ACCIDENTALLY DEPLOYED, AND COULD RESULT IN
SERIOUS OR FATAL INJURY.
Disconnect the Left Seat Airbag inline connector located between the seat back and
seat cushion.
Do not disconnect the airbag connectors at the base of the seat.
NOTE: Check connectors - Clean and repair as necessary.
Connect the Airbag System Load Tool 8443 Passenger cable and jumper harness to
the Left Seat Airbag inline connector.
Turn ignition on, then reconnect the battery.
With the DRBIIIt, read active Side Airbag DTC's.
Does the DRBIIItdisplay9LEFT SEAT SQUIB SHORTED TO GROUND9?All
Ye s®Go To 2
No®Replace the Left Seat Airbag.
Perform AIRBAG VERIFICATION TEST - VER 1.
NOTE: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
67
AIRBAG

Symptom:
ORC, CALIBRATION MISMATCH - ACTIVE
When Monitored and Set Condition:
ORC, CALIBRATION MISMATCH - ACTIVE
When Monitored: With ignition on, the ORC monitors the PCI Bus for the VIN message
containing the body style. The PCM transmits the complete VIN message every 14 seconds.
Note: The VIN message should match the vehicle VIN plate.
Set Condition: If the Body style stored in ORC does not exactly match the vehicle body
style indicated by the PCM, then the fault shall be set.
POSSIBLE CAUSES
PCM, PCI COMMUNICATION FAILURE
COMPARE VEHICLE IDENTIFICATION NUMBERS
ORC, ORC CALIBRATION MISMATCH
TEST ACTION APPLICABILITY
1 Turn the ignition on.
Connect the DRB to the data link connector and select PASSIVE RESTRAINTS,
AIRBAG, SYSTEM TEST.
With the DRBIIIt, read the system test.
Does the DRB show PCM Active on the Bus:?All
Ye s®Go To 2
No®Refer to category COMMUNICATION CATEGORY and select the
related symptom.
Perform AIRBAG VERIFICATION TEST - VER 1.
2 With the DRB select ENGINE MISCELLANEOUS, select MISC FUNCTION, and
then CHECK VIN to read the Vehicle Identification Number in the Powertrain
Control Module.
Compare the VIN displayed on the DRB screen and the Vehicle VIN plate.
Does the VIN plate and the PCM VIN match?All
Ye s®Go To 3
No®Replace the Powertrain Control Module and program with the
correct vehicle identification number.
Perform AIRBAG VERIFICATION TEST - VER 1.
73
AIRBAG

Symptom:
ORC, CLUSTER MESSAGE MISMATCH - ACTIVE
When Monitored and Set Condition:
ORC, CLUSTER MESSAGE MISMATCH - ACTIVE
When Monitored: After the MIC bulb test is completed, the ORC compares the Lamp
Request by ORC, On or Off, and the Lamp on by MIC, On or Off, PCI Bus messages. Each
message is transmitted one time per second or when a change in the lamp state occur.
Set Condition: If the Lamp Request by ORC, On or Off, and the Lamp on by MIC, On or
Off, messages do not match, the code will set.
POSSIBLE CAUSES
MIC, COMMUNICATION FAILURE
MIC, CLUSTER MESSAGE MISMATCH
ORC, CLUSTER MESSAGE MISMATCH
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, ensure PCI Bus communications with the Instrument Cluster.
Is the Instrument Cluster communicating on the PCI Bus?All
Ye s®Go To 2
No®Refer to category COMMUNICATION CATEGORY and select the
related symptom INSTRUMENT CLUSTER BUS +/- SIGNAL
OPEN.
Perform AIRBAG VERIFICATION TEST - VER 1.
2 With the DRB select PASSIVE RESTRAINTS, AIRBAG, MONITOR DISPLAY and
WARNING LAMP STATUS.
Cycle the ignition key and observe the LAMP ON BY MIC and LAMP REQ BY ORC
monitors after the 6 to 8 second indicator test.
Does the LAMP ON BY MIC and LAMP REQ BY ORC monitors match?All
YES
Go To 3
NO
Replace Mechanical Instrument Cluster.
Perform BODY VERIFICATION TEST - VER 1.
82
AIRBAG

Symptom:
ORC, DRIVER SBT CIRCUIT OPEN - ACTIVE
When Monitored and Set Condition:
ORC, DRIVER SBT CIRCUIT OPEN - ACTIVE
When Monitored: When the ignition is On, the ORC monitors the resistance of the Driver
Seat Belt Tensioner circuits.
Set Condition: The ORC has detected an open circuit or high resistance on the Driver
Seat Belt Tensioner circuits.
POSSIBLE CAUSES
DRIVER SBT CIRCUITS OPEN
DRIVER SBT LINE 1 CIRCUIT OPEN
DRIVER SBT LINE 2 CIRCUIT OPEN
ORC, DRIVER SBT CIRCUITS OPEN
TEST ACTION APPLICABILITY
1NOTE: Ensure the battery is fully charged.
WARNING: TURN IGNITION OFF, DISCONNECT THE BATTERY AND WAIT
TWO MINUTES BEFORE PROCEEDING.
Disconnect the Driver SBT.
NOTE: Check connectors - Clean and repair as necessary.
Connect the SRS Load Tool 8443 Passenger cable and jumper to the Driver SBT
connector.
WARNING: TURN IGNITION ON, THEN RECONNECT THE BATTERY.
With the DRBIIIt, read the active DTC's.
Does the DRBIIItdisplay DRIVER SBT CIRCUIT OPEN?All
Ye s®Go To 2
No®Replace Driver Seat Belt Tensioner.
Perform AIRBAG VERIFICATION TEST - VER 1.
NOTE: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.
90
AIRBAG

Symptom:
ORC, DRIVER SBT CIRCUIT SHORT - ACTIVE
When Monitored and Set Condition:
ORC, DRIVER SBT CIRCUIT SHORT - ACTIVE
When Monitored: When the ignition is on, the ORC monitors the resistance of the Driver
Seat Belt Tensioner circuits
Set Condition: The ORC has detected low resistance in the Driver Seat Belt Tensioner
circuits.
POSSIBLE CAUSES
DRIVER SBT CIRCUITS SHORT
DRIVER SBT LINE 1 SHORT TO LINE 2
ORC, DRIVER SBT CIRCUIT SHORT
TEST ACTION APPLICABILITY
1NOTE: Ensure the battery is fully charged.
WARNING: TURN IGNITION OFF, DISCONNECT THE BATTERY AND WAIT
TWO MINUTES BEFORE PROCEEDING.
Disconnect the Driver SBT connector.
NOTE: Check connectors - Clean and repair as necessary.
Connect the SRS Load Tool 8443 Passenger cable and jumper to the Driver SBT
connector.
WARNING: TURN IGNITION ON, THEN RECONNECT THE BATTERY.
With the DRBIIIt, read the active DTC's.
Does the DRBIIItdisplay DRIVER SBT CIRCUIT SHORT?All
Ye s®Go To 2
No®Replace Driver Seat Belt Tensioner.
Perform AIRBAG VERIFICATION TEST - VER 1.
NOTE: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.
92
AIRBAG