Dodge Dakota (ND). Manual — part 378
B1B1B-LEFT SIDE CURTAIN SQUIB 1 CIRCUIT SHORTED TOGETHER
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RESTRAINTS - ELECTRICAL DIAGNOSTICS
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B1B1B-LEFT SIDE CURTAIN SQUIB 1 CIRCUIT SHORTED TOGETHER (CONTINUED)
For the Air Bag System circuit diagram (Refer to 8 - ELECTRICAL/RESTRAINTS - SCHEMATICS AND DIA-
GRAMS).
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition on, the Occupant Restraint Controller (ORC) monitors the resistance of the Left Curtain Squib
1 circuits.
•
Set Condition:
The ORC has detected low resistance between the Left Curtain Squib 1 circuits.
Possible Causes
(R3) LEFT CURTAIN SQUIB 1 LINE 1 CIRCUIT SHORTED TO (R1) LEFT CURTAIN SQUIB 1 LINE 2 CIRCUIT
LEFT SIDE CURTAIN AIRBAG
ORC
Diagnostic Test
1.
DETERMINE ACTIVE OR STORED DTC
NOTE: Ensure the battery is fully charged.
NOTE: The scan tool, SRS Airbag Load Tool MRL 8443, and DVOM are required to perform the following
test.
NOTE: When reconnecting airbag system components the Ignition must be turned off and the Battery must
be disconnected.
Select Active or Stored DTC.
Is the DTC active or stored?
ORC - ACTIVE DTC
Go To 2
ORC - STORED DTC
Go To 5
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RESTRAINTS - ELECTRICAL DIAGNOSTICS
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B1B1B-LEFT SIDE CURTAIN SQUIB 1 CIRCUIT SHORTED TOGETHER (CONTINUED)
2.
CHECK FOR SHORTED SQUIB CIRCUITS IN LEFT SIDE CURTAIN AIRBAG
WARNING: To avoid personal injury or death, turn the ignition off,
disconnect the battery and wait two minutes before proceeding.
Disconnect the Left Side Curtain Airbag connector.
WARNING: To avoid personal injury or death, do not place an
intact undeployed curtain airbag face down on a hard surface, the
airbag will propel into the air if accidentally deployed.
NOTE: Check connectors - Clean and repair as necessary.
Connect the 8443 Load Tool and appropriate Jumper to the Left Side
Curtain Airbag connector.
WARNING: To avoid personal injury or death, turn the ignition on,
then reconnect the battery.
With the scan tool, read the active ORC DTC’s.
Does the scan tool display: B1B1B LEFT SIDE CURTAIN SQUIB
1 CIRCUIT SHORTED TOGETHER?
Yes
>> Go To 3
No
>> Replace the Left Side Curtain Airbag in accordance with
the Service Information.
Perform ORC VERIFICATION TEST - VER 1
3.
CHECK (R3) LEFT CURTAIN SQUIB 1 LINE 1 CIRCUIT FOR A SHORT TO (R1) LEFT CURTAIN SQUIB 1
LINE 2 CIRCUIT
WARNING: To avoid personal injury or death, turn the ignition off,
disconnect the battery and wait two minutes before proceeding.
Disconnect the 8443 Load Tool and Jumper from the Left Side Curtain
Airbag connector.
Disconnect the ORC connectors.
NOTE: Check connectors - Clean and repair as necessary.
Connect the 8443 Load Tool ORC Adaptor to the ORC C1 connector.
Measure the resistance between the (R3) Left Curtain Squib 1 Line 1
circuit and the (R1) Left Curtain Squib 1 Line 2 circuit at the Left Side
Curtain Airbag connector.
Is the resistance below 10K ohms?
Yes
>> Repair the (R3) Left Curtain Squib 1 Line 1 circuit for a
short to the (R1) Left Curtain Squib 1 Line 2 circuit.
Perform ORC VERIFICATION TEST - VER 1
No
>> Go To 4
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RESTRAINTS - ELECTRICAL DIAGNOSTICS
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B1B1B-LEFT SIDE CURTAIN SQUIB 1 CIRCUIT SHORTED TOGETHER (CONTINUED)
4.
REPLACE THE ORC
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 and personal injury or death.
NOTE: When reconnecting airbag system components the Ignition must be turned off and the Battery must
be disconnected.
Repair
Replace the ORC in accordance with the Service Information.
Perform ORC VERIFICATION TEST - VER 1
5.
STORED ORC DTC
With the scan tool, record and erase all DTC’s from all Airbag System Modules.
If any ACTIVE codes are present they must be resolved before diagnosing any stored codes.
WARNING: To avoid personal injury or death, turn the ignition off, disconnect the battery and wait two min-
utes 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 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 personal injury or death, turn the ignition on, then reconnect the battery.
With the scan tool monitor active codes as you work through 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 active DTC in question.
Are any ACTIVE DTC’s present?
Yes
>> Select the appropriate diagnostic procedure from the Table of Contents in this section.
No
>> No problem found at this time. Erase all codes before returning vehicle to customer.
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RESTRAINTS - ELECTRICAL DIAGNOSTICS
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