Restraints
B210D-BATTERY VOLTAGE LOW
For a complete wiring diagram Consult Diagrams/Electrical.
- When Monitored:
OCM-While the CAN bus ignition status received is RUN or if the signal is not available, the module checks the (A956) Fused B(+) circuit voltage input range.
- Set Condition:
OCM-If the module detects that the battery voltage is less than or equal to 6.25 volts ±0.25 volts.
- When Monitored:
ORC-While the CAN bus ignition status received is RUN or if the signal is not available, the module checks the (F201) Fused Ignition Switch Output (RUN/START) circuit and the (F100) Fused Ignition Switch Output (RUN only) circuit voltage input range.
- Set Condition:
ORC-If the module detects that the battery voltage is less than or equal to 6.25 volts ±0.25 volts on either the (F201) or (F100) circuits.
Diagnostic Test
1. CHECK FOR AN ACTIVE DTC
NOTE: Troubleshoot any PCM charging/cranking DTCs before proceeding.
NOTE: Ensure the battery is fully charged.
WARNING: To avoid serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.
Turn the ignition on, then off, and then on again.
With the scan tool, read Occupant Restraint Controller (ORC) DTCs.
Select module and DTC type.
OCM Active
- Go To 2
OCM Stored
- Go To 4
ORC Active
- Go To 3
ORC Stored
- Go To 4
2. MEASURE VOLTAGE OF OCM (A956) FUSED B(+) CIRCUIT
Disconnect the OCM C1 connector.
Measure the voltage of the (A956) Fused B(+) circuit.
Is the voltage above 6.50 volts?
Yes
- Replace the OCM.
- Perform *AIRBAG SYSTEM VERIFICATION TEST - VER 1.Airbag System Verification Test
No
- Repair the (A956) FUSED B(+) CIRCUIT for an open.
- Perform *AIRBAG SYSTEM VERIFICATION TEST - VER 1.Airbag System Verification Test
3. MEASURE THE VOLTAGE OF ORC (F201) FUSED IGNITION SWITCH OUTPUT (RUN/START) AND (F100) FUSED IGNITION SWITCH OUTPUT (RUN/START) CIRCUITS
WARNING: To avoid serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.
Disconnect the ORC C1 connector.
WARNING: To avoid serious or fatal injury, turn the ignition on, then reconnect the battery.
Measure the voltage of the (F201) and (F100) circuits.
Is the voltage above 6.50 volts on both circuits?
Yes
- Replace the ORC.
- Perform *AIRBAG SYSTEM VERIFICATION TEST - VER 1.Airbag System Verification Test
No
- Repair the appropriate circuit for an open.
- Perform *AIRBAG SYSTEM VERIFICATION TEST - VER 1.Airbag System Verification Test
4. TEST FOR INTERMITTENT CONDITION
With the scan tool, record and erase all DTCs from all Airbag modules.
If any ACTIVE codes are present they must be resolved before diagnosing any stored codes.
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 wiring and connectors.
Look for chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated terminals.
The following additional checks may assist you in identifying a possible intermittent problem.
Reconnect any disconnected components and harness connector.
WARNING: To avoid serious or fatal injury, turn the ignition on, then reconnect the battery.
With the scan tool, monitor active codes as you work through the following steps.
WARNING: To avoid serious or fatal injury, maintain a safe distance from all airbags while performing the following steps.
Wiggle the wiring harness and connectors of the related airbag circuit or component.
If codes are related to the Driver Airbag circuits, rotate the steering wheel from stop to stop.
If only stored codes return, continue the test until the problem area has been isolated.
In the previous steps you have attempted to recreate the conditions responsible for setting the active DTC in question.
Does the scan tool display any ACTIVE DTCs?
Yes
- Diagnose and repair the DTCs.
No
- No problem found Erase all codes before returning vehicle to customer.