B210A-00
B210A-00-SYSTEM VOLTAGE LOW
Special Tools:
For a complete wiring diagram, refer to the Wiring Information.
Theory of Operation
The Occupant Restraint Controller module (ORC) receives power from both a fused Run Relay output and fused Run Start Relay output circuit from the Totally Integrated Power Module (TIPM). These circuits power the ORC and the capacitors used to initiate the squib deployment circuits in the event of collision detection.
The use of the SRS Load Tool Adapter provides a test point, as well as a method for opening the shorting bar connections within the harness connector. (8443-57)
- When Monitored:
The Occupant Restraint Controller (ORC) module checks the (F100) Fused Ignition Run Control Output circuit and (F201) Fused Run/Start Control Output circuit voltage input once every second throughout the ignition cycle.
- Set Condition:
The code will be set active if the ORC detects when both the (F100) Fused Ignition Run Control Output and (F201) Fused Run/Start Control Output circuit voltage is less than 10 volts for 17 seconds. The code will go from active to stored if the Ignition (Run Only) or Ignition (Run-Start) voltage is more than 10.4 volts for 17 seconds.
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Restraint System Pre-Diagnostic Procedure.
Diagnostic Test
1. DETERMINE ACTIVE OR STORED DTC
NOTE: Make sure the battery is fully charged.
NOTE: Troubleshoot any PCM charging/cranking DTCs before proceeding.
1. Turn the ignition on, then off, then on again, wait 15 seconds.
2. With the scan tool, read the Occupant Restraint Controller (ORC) DTCs.
Does the scan tool display active: B210A-00-SYSTEM VOLTAGE LOW?
Yes
- Go To 2
No
- Perform the RESTRAINTS SYSTEM INTERMITTENT TEST. Restraint System Intermittent Condition Test.
2. CHECK VOLTAGE OF ORC (F100) FUSED IGNITION RUN CONTROL OUTPUT AND (F201) FUSED RUN/START CONTROL OUTPUT CIRCUITS
WARNING:
Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
1. Disconnect the ORC C1 and C2 connectors.
NOTE: Check the connectors - Clean and repair as necessary.
2. Connect the SRS Load Tool Adapter to the ORC C1 and C2 harness connectors. (8443-57)
WARNING:
Turn the ignition on, then reconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
3. Measure the voltage of the (F100) Fused Ignition Run Control Output circuit between the SRS Load Tool Adapter C1A-20 and ground.
4. Measure the voltage of the (F201) Fused Run/Start Control Output circuit between the SRS Load Tool Adapter C1A-10 and ground. (8443-57)
Is the voltage above 10 volts on both circuits?
Yes
WARNING:
Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
WARNING:
If the Occupant Restraint Controller (ORC) is dropped at any time, it must be replaced. Failure to take the proper precautions can result in accidental airbag deployment. Failure to follow these instructions may result in possible serious or fatal injury.
- Replace the ORC.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraint System Verification Test.
No
- Repair the (F100) Fused Ignition Run Control Output and/or (F201) Fused Run/Start Control Output circuits for an open or high resistance.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraint System Verification Test.