Jeep Grand Cherokee WK. Manual — part 577
B1B22-RIGHT SIDE CURTAIN SQUIB 1 CIRCUIT OPEN (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.
8O - 130
RESTRAINTS - ELECTRICAL DIAGNOSTICS
WK
B1B23-RIGHT SIDE CURTAIN SQUIB 1 CIRCUIT SHORTED TOGETHER
WK
RESTRAINTS - ELECTRICAL DIAGNOSTICS
8O - 131
B1B23-RIGHT 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 Right Curtain
Squib 1 circuits.
•
Set Condition:
The ORC has detected low resistance between the Right Curtain Squib 1 circuits.
Possible Causes
(R4) RIGHT CURTAIN SQUIB 1 LINE 1 CIRCUIT SHORTED TO (R2) RIGHT CURTAIN SQUIB 1 LINE 2
CIRCUIT
RIGHT 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
8O - 132
RESTRAINTS - ELECTRICAL DIAGNOSTICS
WK
B1B23-RIGHT SIDE CURTAIN SQUIB 1 CIRCUIT SHORTED TOGETHER (CONTINUED)
2.
CHECK FOR SHORTED SQUIB CIRCUITS IN RIGHT 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 Right Side Curtain Airbag connector.
WARNING: To avoid personal injury or death, do not place an
intact uncoupled 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 Right 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: B1B23 RIGHT SIDE CURTAIN
SQUIB 1 CIRCUIT SHORTED TOGETHER?
Yes
>> Go to 3
No
>> Replace the Right Side Curtain Airbag in accordance with
the Service Information.
Perform ORC VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/RESTRAINTS - DIAGNOSIS AND TEST-
ING)
3.
CHECK (R4) RIGHT CURTAIN SQUIB 1 LINE 1 CIRCUIT FOR A SHORT TO (R2) RIGHT 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 Right Side Cur-
tain 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 (R4) Right Curtain Squib 1 Line 1
circuit and the (R2) Right Curtain Squib 1 Line 2 circuit at the ORC
adaptor.
Is the resistance below 10K ohms?
Yes
>> Repair the (R4) Right Curtain Squib 1 Line 1 circuit for a
short to the (R2) Right Curtain Squib 1 Line 2 circuit.
Perform ORC VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/RESTRAINTS - DIAGNOSIS AND TEST-
ING)
No
>> Go to 4
WK
RESTRAINTS - ELECTRICAL DIAGNOSTICS
8O - 133
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст