Page 105 of 4284

When Monitored and Set Condition:
ORC, CALIBRATION MISMATCH - STORED
When Monitored: With ignition on, the ORC monitors the PCI Bus for the VIN message
containing the body style. The PCM transmits the 17- character 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.
ORC, CLUSTER MESSAGE MISMATCH - STORED
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.
ORC, DRIVER SBS OPEN - STORED
When Monitored: The ORC monitors the Seat Belt Switch circuit for an open condition.
Set Condition: The code will set if the ORC does not detect the correct circuit voltage.
ORC, DRIVER SBS SHORT TO BATTERY - STORED
When Monitored: The ORC monitors the Seat Belt Switch circuit for an short to battery.
Set Condition: The code will set if the ORC detects high circuit voltage.
ORC, DRIVER SBS SHORT TO GROUND - STORED
When Monitored: The ORC monitors the Seat Belt Switch circuit for a shorted together
or shorted to ground condition.
Set Condition: The code will set if the ORC detects low circuit voltage.
ORC, DRIVER SBT CIRCUIT OPEN - STORED
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.
ORC, DRIVER SBT CIRCUIT SHORT - STORED
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.
76
AIRBAG
ORC, CALIBRATION MISMATCH - STORED ÐContinued
Page 106 of 4284

ORC, DRIVER SBT SHORT TO BATTERY - STORED
When Monitored: When the ignition is on, the ORC monitors the voltage of the Driver
Seat Belt Tensioner circuits.
Set Condition: When the ignition is on, the ORC monitors the voltage of the Driver Seat
Belt Tensioner circuits.
ORC, DRIVER SBT SHORT TO GROUND - STORED
When Monitored: When the ignition is on, the ORC monitors the resistance of the Driver
Seat Belt Tensioner circuits for low resistance.
Set Condition: The ORC has detected a short to ground in the Driver Seat Belt Tensioner
circuits.
ORC, DRIVER SQUIB 1 CIRCUIT OPEN - STORED
When Monitored: When the ignition is on, the ORC monitors the resistance of the Driver
Squib 1 circuits.
Set Condition: The ORC has detected an open circuit or high resistance in the Driver
Squib 1 circuits.
ORC, DRIVER SQUIB 1 CIRCUIT SHORT - STORED
When Monitored: When the ignition is on, the ORC monitors the resistance of the Driver
Squib 1 circuits.
Set Condition: The ORC has detected low resistance on the Driver Squib 1 circuits.
ORC, DRIVER SQUIB 1 SHORT TO BATTERY - STORED
When Monitored: When the ignition is on, the ORC monitors the voltage of the Driver
Squib 1 circuits.
Set Condition: The ORC has detected high voltage on the Driver Squib 1 circuits.
ORC, DRIVER SQUIB 1 SHORT TO GROUND - STORED
When Monitored: When the ignition is on, the ORC monitors the resistance of the Driver
Squib 1 circuits.
Set Condition: The ORC has detected a short to ground in the Driver Squib 1 circuits.
ORC, DRIVER SQUIB 2 CIRCUIT OPEN - STORED
When Monitored: When the ignition is on, the ORC monitors the resistance of the Driver
Squib 2 circuits.
Set Condition: The ORC has detected an open circuit or high resistance in the Driver
Squib 2 circuits.
ORC, DRIVER SQUIB 2 CIRCUIT SHORT - STORED
When Monitored: When the ignition is on, the ORC monitors the resistance of the Driver
Squib 2 circuits.
Set Condition: The ORC has detected low resistance on the Driver Squib 2 circuits.
77
AIRBAG
ORC, CALIBRATION MISMATCH - STORED ÐContinued
Page 107 of 4284

ORC, DRIVER SQUIB 2 SHORT TO BATTERY - STORED
When Monitored: When the ignition is on, the ORC monitors the voltage of the Driver
Squib 2 circuits.
Set Condition: The ORC has detected high voltage on the Driver Squib 2 circuits.
ORC, DRIVER SQUIB 2 SHORT TO GROUND - STORED
When Monitored: When the ignition is on, the ORC monitors the resistance of the Driver
Squib 2 circuits.
Set Condition: The ORC has detected a short to ground in the Driver Squib 2 circuits.
ORC, LOSS OF IGNITION RUN ONLY - STORED
When Monitored: With the ignition in the run position the ORC monitors the ORC Run
Only Driver circuit for proper system voltage.
Set Condition: If the voltage on the ORC Run Only Driver circuit drops below 4.5 volts,
the code will set.
ORC, LOSS OF IGNITION RUN-START - STORED
When Monitored: With the ignition in the run or start position the ORC monitors the
ORC Run-Start Driver circuit for proper system voltage.
Set Condition: If the voltage on the ORC Run-Start Driver circuit drops below 4.5 volts,
the code will set.
ORC, NO CLUSTER MESSAGE - STORED
When Monitored: With the ignition in the ON position, the ORC monitors the PCI Bus for
a message from the MIC containing the airbag warning lamp status. The MIC transmits
the message one time at ignition on, lamp state change, or in response to the ORC lamp
message.
Set Condition: If the MIC message is not received for 10 consecutive seconds, the code
will set.
ORC, NO ODOMETER MESSAGE - STORED
When Monitored: With ignition on, the ORC monitors the PCI Bus for the Odometer
message from the Body Control Module. The BCM transmits the odometer message at 1
second intervals.
Set Condition: The code will set, if the ORC does not see the odometer message for 10
seconds.
ORC, PASSENGER SBS OPEN - STORED
When Monitored: The ORC monitors the Seat Belt Switch circuit for an open condition.
Set Condition: The code will set if the ORC does not detect the correct circuit voltage.
78
AIRBAG
ORC, CALIBRATION MISMATCH - STORED ÐContinued
Page 108 of 4284

ORC, PASSENGER SBS SHORT TO BATTERY - STORED
When Monitored: The ORC monitors the Seat Belt Switch circuit for an short to battery.
Set Condition: The code will set if the ORC detects high circuit voltage.
ORC, PASSENGER SBS SHORT TO GROUND - STORED
When Monitored: The ORC monitors the Seat Belt Switch circuit for a shorted together
or shorted to ground condition.
Set Condition: The code will set if the ORC detects low circuit voltage.
ORC, PASSENGER SBT CIRCUIT OPEN - STORED
When Monitored: When the ignition is on, the ORC monitors the resistance of the
Passenger Seat Belt Tensioner circuits.
Set Condition: The ORC has detected an open circuit or high resistance or open circuit in
the Passenger Seat Belt Tensioner circuits.
ORC, PASSENGER SBT CIRCUIT SHORT - STORED
When Monitored: When the ignition is on, the ORC monitors the resistance of the
Passenger Seat Belt Tensioner circuits.
Set Condition: The ORC has detected low resistance in the Passenger Seat Belt Tensioner
circuits.
ORC, PASSENGER SBT SHORT TO BATTERY - STORED
When Monitored: When the ignition is on, the ORC monitors the voltage of the Passenger
Seat Belt Tensioner circuits.
Set Condition: The ORC has detected high voltage on the Passenger Seat Belt Tensioner
circuits.
ORC, PASSENGER SBT SHORT TO GROUND - STORED
When Monitored: When the ignition is on, the ORC monitors the resistance of the
Passenger Seat Belt Tensioner circuits for low resistance.
Set Condition: The ORC has detected a short to ground in the Passenger Seat Belt
Tensioner circuits.
ORC, PASSENGER SQUIB 1 CIRCUIT OPEN - STORED
When Monitored: With the ignition is On, the ORC monitors the resistance of the
Passenger Squib 1 circuits.
Set Condition: The ORC has detected an open circuit or high resistance on the Driver
Squib 1 circuits.
ORC, PASSENGER SQUIB 1 CIRCUIT SHORT - STORED
When Monitored: When the ignition is on, the ORC monitors the resistance of the
Passenger Squib 1 circuits.
Set Condition: The ORC has detected low resistance in the Passenger Squib 1 circuits.
79
AIRBAG
ORC, CALIBRATION MISMATCH - STORED ÐContinued
Page 109 of 4284

ORC, PASSENGER SQUIB 1 SHORT TO BATTERY - STORED
When Monitored: When the ignition is on, the ORC monitors the voltage of the Passenger
Squib 1 circuits.
Set Condition: The ORC has detected high voltage on the Passenger Squib 1 circuits.
ORC, PASSENGER SQUIB 1 SHORT TO GROUND - STORED
When Monitored: When the ignition is on, the ORC monitors the resistance of the
Passenger Squib 1 circuits for low resistance.
Set Condition: The ORC has detected a short to ground in the Passenger Squib 1 circuits.
ORC, PASSENGER SQUIB 2 CIRCUIT OPEN - STORED
When Monitored: With the ignition is On, the ORC monitors the resistance of the
Passenger Squib 2 circuits.
Set Condition: The ORC has detected an open circuit or high resistance on the Passenger
Squib 2 circuits.
ORC, PASSENGER SQUIB 2 CIRCUIT SHORT - STORED
When Monitored: When the ignition is on, the ORC monitors the resistance of the
Passenger Squib 2 circuits.
Set Condition: The ORC has detected low resistance in the Passenger Squib 2 circuits.
ORC, PASSENGER SQUIB 2 SHORT TO BATTERY - STORED
When Monitored: When the ignition is on, the ORC monitors the voltage of the Passenger
Squib 2 circuits.
Set Condition: The ORC has detected high voltage on the Passenger Squib 2 circuits.
ORC, PASSENGER SQUIB 2 SHORT TO GROUND - STORED
When Monitored: When the ignition is on, the ORC monitors the resistance of the
Passenger Squib 2 circuits for low resistance.
Set Condition: The ORC has detected a short to ground in the Passenger Squib 2 circuits.
ORC, VEHICLE BODY STYLE UNKNOWN - STORED
When Monitored: With ignition on, the ORC monitors the PCI Bus for the VIN message
containing the vehicle body style from the Powertrain Control Module. The PCM transmits
the VIN message every 14 seconds.
Set Condition: With ignition on, If the ORC does not receive the 2 consecutive matching
(vehicle Body Style) VIN messages on the bus the code will set.
80
AIRBAG
ORC, CALIBRATION MISMATCH - STORED ÐContinued
Page 110 of 4284

ORC, WARNING INDICATOR CIRCUIT OPEN - STORED
When Monitored: When the ignition is On, the ORC monitors the PCI Bus for a message
from the MIC containing the airbag warning lamp status Ok or Open. The MIC transmits
the message one time at ignition on, upon lamp state change, or in response to the ORC
lamp message.
Set Condition: The code is set if the lamp state is open for 2 consecutive messages or 2
seconds.
ORC, WARNING INDICATOR CIRCUIT SHORT - STORED
When Monitored: When the ignition is On, the ORC monitors the PCI Bus for a message
from the MIC containing the airbag warning lamp status Ok or Shorted. The MIC
transmits the message one time at ignition on and upon lamp state change.
Set Condition: If the lamp state is Shorted for 2 consecutive messages the code will be set.
POSSIBLE CAUSES
CHECKING FOR ACTIVE ORC DTC'S
STORED CODE PRESENT
TEST ACTION APPLICABILITY
1 Turn ignition on.
NOTE: Ensure the battery is fully charged.
Active codes must be resolved before diagnosing stored codes.
With the DRBIIIt, record and erase all DTCs from all modules.
With the DRB III monitor active codes as you work through the system.
Wiggle the wiring harness and connectors of the Airbag System and rotate the
steering wheel from stop to stop.
NOTE: Check connectors - Clean and repair as necessary.
You have just attempted to simulate the condition that initially set the trouble code
message.
The following additional checks may assist you in identifying a possible intermittent
problem:
- Visually inspect related wire harness connectors. Look for broken, bent, pushed out,
spread, corroded, or contaminated terminals.
- Visually inspect related harnesses. Look for chafed, pierced, pinched or partially
broken wire.
- Refer to Wiring Diagrams and Technical Service Bulletins that may apply.
Did the DTC become active ?All
Ye s®Select appropriate symptom from Symptom List and continue
with diagnosis.
No®No problem found at this time. Erase codes in all modules before
returning vehicle to customer.
81
AIRBAG
ORC, CALIBRATION MISMATCH - STORED ÐContinued
Page 111 of 4284

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
Page 112 of 4284
TEST ACTION APPLICABILITY
3WARNING: 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.
If there are no possible causes remaining, view repair.All
Repair
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.
83
AIRBAG
ORC, CLUSTER MESSAGE MISMATCH - ACTIVE ÐContinued