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, the module checks the (A417) Fused B(+) 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 volt.

Possible Causes

OCM (A27) FUSED B(+) CIRCUIT OPEN

VEHICLE CHARGING SYSTEM

OCCUPANT CLASSIFICATION MODULE (ORC)

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 DTC before proceeding.

Turn the ignition on.
With the scan tool, read the Occupant Classification Module (OCM) DTC.

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

Yes

Go To 2

Go To 3

2. CHECK VOLTAGE OF OCM (A27) FUSED B(+) CIRCUIT.

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

Disconnect the OCM connectors.

WARNING: To avoid serious or fatal injury, turn the ignition on, then reconnect the battery.

Measure the voltage between Ground and the (A27) Fused B(+) circuit.

Is the voltage above 6.0 volts circuit?

Yes

Replace the OCM in accordance with the service information.
Perform *OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST

Repair the (A27) Fused B(+) circuit for an open or high resistance.
Perform *OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST.

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.

With the scan tool, record and erase all Airbag System Module DTC.

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

Using the wiring diagram/schematic as a guide, inspect the related wiring and connectors for chafed, pierced, pinched, and partially broken wires, and for broken, bent, pushed out, corroded, and contaminated terminals. Repair as necessary.
Reconnect all disconnected components and harness connectors.

WARNING: To avoid serious or fatal injury, turn the ignition on, then reconnect the battery.

Does the scan tool display any ACTIVE DTC?

Yes

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

No problem found at this time. Erase all codes before returning vehicle to customer.