Jeep XJ. Manual — part 535
TEST
ACTION
APPLICABILITY
4
NOTE: Ensure that the battery is fully charged.
WARNING: TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND
WAIT TWO MINUTES BEFORE PROCEEDING.
Disconnect the Clockspring connector.
Disconnect the Airbag Control Module connector.
NOTE: Check connectors - Clean / repair as necessary.
Connect the Airbag System Load Tool # 8310 ACM Adaptor to the Airbag Control
Module connector.
Measure the resistance of the Driver Airbag Line 2 circuit between the ACM Adaptor
and the Clockspring connector.
Is the resistance below 5.0 ohms?
All
Yes
→
No
→
Repair open or high resistance in the Driver Airbag Line 2 circuit.
Perform AIRBAG VERIFICATION TEST - VER 1.
NOTE: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.
5
WARNING: TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND
WAIT TWO MINUTES BEFORE PROCEEDING.
WARNING: IF THE AIRBAG MODULE IS DROPPED AT ANY TIME, IT MUST
BE REPLACED.
View repair.
All
Repair
Replace the Airbag Control Module in accordance with Service
Instructions. WARNING: make sure the battery is disconnected
and wait 2 minutes before proceeding.
Perform AIRBAG VERIFICATION TEST - VER 1.
NOTE: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.
20
AIRBAG
DRIVER SQUIB CIRCUIT OPEN - ACTIVE —
Continued
Symptom List:
DRIVER SQUIB CIRCUIT OPEN - STORED
DRIVER SQUIB CIRCUIT SHORT - STORED
EITHER SQUIB TERM SHORT TO BATTERY - STORED
EITHER SQUIB TERM SHORT TO GROUND - STORED
LOSS OF IGNITION RUN-START - STORED
NO CLUSTER MESSAGE - STORED
PASSENGER SQUIB CIRCUIT OPEN - STORED
PASSENGER SQUIB CIRCUIT SHORT - STORED
WARNING LAMP OPEN - SHORT - STORED
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be DRIVER SQUIB CIRCUIT OPEN
- STORED.
When Monitored and Set Condition:
DRIVER SQUIB CIRCUIT OPEN - STORED
When Monitored:
When the ignition is on, the ACM monitors the resistance of the Driver
Squib circuits.
Set Condition:
The ACM has detected an open circuit or high resistance in the Driver
Squib circuits.
DRIVER SQUIB CIRCUIT SHORT - STORED
When Monitored:
When the ignition is on, the ACM monitors the resistance of the Driver
Squib circuits.
Set Condition:
The ACM has detected low resistance on the Driver Squib circuits.
EITHER SQUIB TERM SHORT TO BATTERY - STORED
When Monitored:
When the ignition is on, the ACM monitors the voltage of the Driver
Squib circuits.
Set Condition:
The ACM has detected high voltage on the Driver Squib circuits.
EITHER SQUIB TERM SHORT TO GROUND - STORED
When Monitored:
When the ignition is on, the ACM monitors the voltage of the Driver
Squib circuits.
Set Condition:
The ACM has detected a short to ground in the Driver Squib circuits.
LOSS OF IGNITION RUN-START - STORED
When Monitored:
With the ignition in the run/start position the ACM monitors the Fused
Ignition Switch Output Run/Start circuit for proper system voltage.
Set Condition:
If the voltage on the Fused Ignition Switch Output Run/Start circuit drops
below 4.5 volts, the code will set.
21
AIRBAG
PASSENGER SQUIB CIRCUIT OPEN - STORED
When Monitored:
With the ignition is On, the ACM monitors the resistance of the
Passenger Squib circuits.
Set Condition:
The ACM has detected an open circuit or high resistance on the Driver
Squib circuits.
PASSENGER SQUIB CIRCUIT SHORT - STORED
When Monitored:
When the ignition is on, the ACM monitors the resistance of the
Passenger Squib circuits.
Set Condition:
The ACM has detected low resistance in the Passenger Squib circuits.
WARNING LAMP OPEN - SHORT - STORED
When Monitored:
When the ignition is On, the ACM monitors the CCD Bus for a message
from the MIC containing the airbag warning lamp bulb and driver status.
Set Condition:
The code is set if the lamp state is open for 2 consecutive messages or 2
seconds.
POSSIBLE CAUSES
ACTIVE OR STORED CODE PRESENT
STORED CODE OR INTERMITTENT CONDITION
TEST
ACTION
APPLICABILITY
1
NOTE: Ensure the battery is fully charged.
Active codes must be resolved before diagnosing stored codes.
Turn the ignition on.
With the DRBIII
t, record and erase all DTCs from all modules.
With the DRB III monitor active codes as you work through the system.
Wiggle the wiring harness and connectors of the Airbag System and rotate the
steering wheel from stop to stop.
NOTE: Check connectors - Clean and repair as necessary.
You have just attempted to simulate the condition that initially set the trouble code
message.
The following additional checks may assist you in identifying a possible intermittent
problem:
- Visually inspect related wire harness connectors. Look for broken, bent, pushed out,
spread, corroded, or contaminated terminals.
- Visually inspect the related harnesses. Look for chafed, pierced, pinched or partially
broken wire.
- Refer to Wiring Diagrams and Technical Service Bulletins that may apply.
Did the DTCs become active?
All
Yes
→
Select appropriate active symptom from Symptom List.
No
→
No problem found at this time. Erase all codes before returning
vehicle to customer.
22
AIRBAG
DRIVER SQUIB CIRCUIT OPEN - STORED —
Continued
Symptom:
DRIVER SQUIB CIRCUIT SHORT - ACTIVE
When Monitored and Set Condition:
DRIVER SQUIB CIRCUIT SHORT - ACTIVE
When Monitored:
When the ignition is on, the ACM monitors the resistance of the Driver
Squib circuits.
Set Condition:
The ACM has detected low resistance on the Driver Squib circuits.
POSSIBLE CAUSES
DRIVER AIRBAG MODULE LINE 1 SHORT TO LINE 2
CLOCKSPRING, DRIVER AIRBAG CIRCUITS LINE 1 SHORT TO LINE 2
DRIVER AIRBAG LINE 1 SHORT TO LINE 2
ACM, DRIVER AIRBAG CIRCUIT SHORT
TEST
ACTION
APPLICABILITY
1
NOTE: Ensure that the battery is fully charged.
WARNING: TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND
WAIT TWO MINUTES BEFORE PROCEEDING.
WARNING: DO NOT PLACE AN INTACT UNDEPLOYED AIRBAG FACE
DOWN ON A HARD SURFACE, THE AIRBAG WILL PROPEL INTO THE AIR
IF ACCIDENTALLY DEPLOYED, AND COULD RESULT IN SERIOUS OR
FATAL INJURY.
Disconnect the Driver Airbag.
NOTE: Check connectors - Clean and repair as necessary.
Connect the Airbag System Load Tool 8310 brown cable and jumper harness to the
Driver Airbag connector.
Turn the ignition on, then reconnect the battery.
With the DRBIII
t, read the active Airbag DTCs.
Does the DRB show DRIVER SQUIB CIRCUIT SHORT?
All
Yes
→
No
→
Replace Driver Airbag Module.
Perform AIRBAG VERIFICATION TEST - VER 1.
NOTE: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.
23
AIRBAG
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