Dodge Durango (HB). Manual — part 517
B210D-BATTERY VOLTAGE LOW (CONTINUED)
For the Occupant Classification System circuit diagram (Refer to 8 - ELECTRICAL/RESTRAINTS - SCHEMATICS
AND DIAGRAMS).
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
OCM-While the CAN bus ignition status received is RUN or SNA, 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 SNA, 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.
Possible Causes
OCM (A956) FUSED B(+) CIRCUIT
ORC (F201) FUSED IGNITION SWITCH OUTPUT (RUN/START) CIRCUIT OPEN
ORC (F100) FUSED IGNITION SWITCH OUTPUT (RUN ONLY) CIRCUIT OPEN
VEHICLE CHARGING SYSTEM
OCCUPANT CLASSIFICATION MODULE
OCCUPANT RESTRAINT CONTROLLER
Diagnostic Test
1.
CHECK FOR AN ACTIVE DTC
NOTE: Troubleshoot any PCM charging/cranking DTCs before
proceeding.
NOTE: Ensure the battery is fully charged.
NOTE: When reconnecting Airbag system components, the igni-
tion must be turned off and the battery must be disconnected.
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
HB
RESTRAINTS - ELECTRICAL DIAGNOSTICS
8O - 337
B210D-BATTERY VOLTAGE LOW (CONTINUED)
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 in accordance with the service informa-
tion. Perform the Occupant Classification Module System
Verification Test.
Perform OCS VERIFICATION TEST - VER 1.
No
>> Repair the (A956) FUSED B(+) CIRCUIT for an open.
Perform OCS VERIFICATION TEST - VER 1.
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 personal injury or death, turn the ignition off,
disconnect the battery and wait two minutes before proceeding.
Disconnect the ORC C1 connector.
WARNING: To avoid personal injury or death, 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 in accordance with the Service Informa-
tion.
Perform ORC VERIFICATION TEST - VER 1.
No
>> Repair the appropriate circuit for an open.
Perform ORC VERIFICATION TEST - VER 1.
8O - 338
RESTRAINTS - ELECTRICAL DIAGNOSTICS
HB
B210D-BATTERY VOLTAGE LOW (CONTINUED)
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 diag-
nosing any stored codes.
WARNING: To avoid personal injury or death, 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 chaffed, pierced, pinched, or partially broken wires and bro-
ken, bent, pushed out, spread, corroded, or contaminated terminals.
The following additional checks may assist you in identifying a possi-
ble intermittent problem.
Reconnect any disconnected components and harness connector.
WARNING: To avoid personal injury or death, turn the ignition on,
then reconnect the battery.
With the scan tool, monitor active codes as you work through the fol-
lowing steps.
WARNING: To avoid personal injury or death, 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 ques-
tion.
Does the scan tool display any ACTIVE DTCs?
Yes
>> Select appropriate symptom from Symptom List.
No
>> No problem found Erase all codes before returning vehicle to customer.
HB
RESTRAINTS - ELECTRICAL DIAGNOSTICS
8O - 339
B210E-BATTERY VOLTAGE HIGH
8O - 340
RESTRAINTS - ELECTRICAL DIAGNOSTICS
HB
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