Jeep Grand Cherokee WK. Manual — part 557
B1B04-DRIVER AIRBAG SQUIB 2 CIRCUIT LOW (CONTINUED)
6.
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 DTCs 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
WK
B1B05-DRIVER AIRBAG SQUIB 2 CIRCUIT HIGH
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RESTRAINTS - ELECTRICAL DIAGNOSTICS
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B1B05-DRIVER AIRBAG SQUIB 2 CIRCUIT HIGH (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 voltage on the Driver Squib 2 cir-
cuits.
•
Set Condition:
The ORC has detected voltage on the Driver Squib 2 circuits.
Possible Causes
(R63) DRIVER SQUIB 2 LINE 1 CIRCUIT OR (R61) DRIVER SQUIB 2 LINE 2 CIRCUIT SHORTED TO BATTERY
STEERING CONTROL MODULE
DRIVER 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 6
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RESTRAINTS - ELECTRICAL DIAGNOSTICS
WK
B1B05-DRIVER AIRBAG SQUIB 2 CIRCUIT HIGH (CONTINUED)
2.
CHECK FOR SHORTED SQUIB CIRCUITS IN DRIVER AIRBAG
WARNING: To avoid personal injury or death, turn the ignition off,
disconnect the battery and wait two minutes before proceeding.
Disconnect the Driver Airbag Squib connectors.
WARNING: To avoid personal injury or death, do not place an
intact undeployed 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 Driver Air-
bag Squib connectors.
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: B1B05 DRIVER AIRBAG SQUIB 2
CIRCUIT HIGH?
Yes
>> Go To 3
No
>> Replace the Driver Airbag in accordance with the Service
Information.
Perform ORC VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/RESTRAINTS - DIAGNOSIS AND TEST-
ING)
3.
CHECK CLOCKSPRING SQUIB CIRCUITS FOR A SHORT TO
BATTERY
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 Driver Airbag
Squib connectors.
Disconnect the Steering Control Module C2 connector.
NOTE: Check connectors - Clean and repair as necessary.
Connect the 8443 Load Tool and appropriate Jumper to the Steering
Control Module 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: B1B05 DRIVER AIRBAG SQUIB 2
CIRCUIT HIGH?
Yes
>> Go To 4
No
>> Replace the Steering Control Module in accordance with
the Service Information.
Perform ORC VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/RESTRAINTS - DIAGNOSIS AND TEST-
ING)
WK
RESTRAINTS - ELECTRICAL DIAGNOSTICS
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