B210D-BATTERY VOLTAGE LOW





For a complete wiring diagram Refer to Section 8W.


  • When Monitored:

    While the Occupant Classification module (OCM) CAN bus ignition status received is RUN or Signal Not Available (SNA), the module checks the (A27) Fused B(+) circuit voltage input range and the (F200) Fused Ignition Switch Output circuit voltage input range.

  • Set Condition:

    If the OCM detects that the battery voltage is less than or equal to 6.25 volts ± 0.25 volts.


Possible Causes
  
OCM (A27) FUSED B(+) CIRCUIT OPEN
  
OCM (F200) FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
  
VEHICLE CHARGING SYSTEM
  
OCCUPANT CLASSIFICATION MODULE
  



Diagnostic Test

1.VERIFY THAT DTC B210D-BATTERY VOLTAGE LOW IS ACTIVE

NOTE: Ensure the battery is fully charged.

NOTE: Troubleshoot any PCM charging/cranking DTCs before proceeding.





Does the scan tool display active: B210D-BATTERY VOLTAGE LOW?

Yes
  • Go To 2


No
  • Go To 3

2.CHECK VOLTAGE OF OCM (A27) FUSED B(+) AND (F200) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUITS.


WARNING: To avoid personal injury or death, turn the ignition off, disconnect the battery and wait two minutes before proceeding.



WARNING: To avoid personal injury or death, turn the ignition on, then reconnect the battery.





Is the voltage above 6.0 volts on both circuits?

Yes
  • Replace the OCM in accordance with the service information.
  • Perform *OCS SYSTEM VERIFICATION TEST VER - 1


No
  • Repair the (A27) Fused B(+) and/or (F200) Fused Ignition Switch Output (Run-Start) circuits for an open or high resistance.
  • Perform *OCS SYSTEM VERIFICATION TEST VER - 1

3.CHECKING STORED OR INTERMITTENT CODES

NOTE: Diagnose and repair all active codes before diagnosing stored codes. Refer to the Table of Contents in this Section for a complete list of airbag system diagnostic procedures.



WARNING: To avoid personal injury or death, turn the ignition off, disconnect the battery and wait two minutes before proceeding.




WARNING: To avoid personal injury or death, turn the ignition on, then reconnect the battery.



Does the scan tool display any ACTIVE DTCs?

Yes
  • Select the appropriate diagnostic procedure from the Table of Contents in this section.


No
  • No problem found at this time. Perform the *OCS SYSTEM VERIFICATION TEST - VER 1 in this Section. Erase all codes before returning vehicle to customer.