Jeep Liberty KJ. Manual - part 226

SQUIB CONFIGURATION

For a complete wiring diagram Refer to Section 8W.

•

When Monitored:
With the ignition on.

•

Set Condition:
The Occupant Restraint Controller (ORC) monitors the resistance across its side airbag squib terminals to
detect for side airbag squibs in the airbag system. The ORC will set this DTC if it is not configured for side
airbags and it detects valid squib circuit resistance across these terminals.

Possible Causes

POWERTRAIN CONTROL MODULE (PCM)

ORC

Diagnostic Test

DETERMINE ACTIVE OR STORED DTC

NOTE: Ensure that the battery is fully charged.
Turn the ignition on.

SELECT ACTIVE or STORED DTC.

Active DTC

Go To 2

Stored DTC

Go To 3

CHECK ORC CONFIGURATION

With the scan tool, read the VIN and the ORC part number. Verify that the VIN and the ORC part number match the
vehicle.

Is the correct ORC installed in the vehicle?

Yes

>> Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information.

Perform NGC POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - DIAGNOSIS AND TEST-
ING).

WARNING: If the Occupant Restraint Controller (ORC) is dropped at any time, it must be replaced. Failure to
take the proper precautions could result in accidental airbag deployment and personal injury or death.

WARNING: To avoid personal injury or death, turn the ignition off, disconnect the battery and wait two min-
utes before proceeding.

Replace the ORC in accordance with the Service information.

Perform *AIRBAG SYSTEM VERIFICATION TEST - VER 1.

TEST FOR AN INTERMITTENT CONDITION

NOTE: Diagnose and repair all active codes before diagnosing stored codes. Refer to the Table of Contents
in this Section for a complete list of airbag system diagnostic procedures.
With the scan tool, record and erase all Airbag System Module DTCs.

NOTE: 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 related wiring and connectors for chafed, pierced,
pinched, and partially broken wires, and for broken, bent, pushed out, corroded, and contaminated terminals. Repair
as necessary.

Reconnect all disconnected components and harness connectors.

WARNING: To avoid personal injury or death, turn the ignition on, then reconnect the battery.
With the scan tool, monitor for active codes while performing the following:

8O - 210

RESTRAINTS - ELECTRICAL DIAGNOSTICS

Wiggle the wiring harness and connectors of the related airbag circuit.

If codes are related to the Driver Airbag circuits, rotate the steering wheel from stop to stop.

In the previous steps you have attempted to recreate the conditions responsible for setting the DTC in question.

Does the scan tool display any active DTCs?

Yes

>> Select the appropriate diagnostic procedure from the Table of Contents in this section.

>> No problem found at this time. Erase all codes before returning the vehicle to the customer.

RESTRAINTS - ELECTRICAL DIAGNOSTICS

8O - 211

SYSTEM VERIFICATION REQUIRED

For a complete wiring diagram Refer to Section 8W.

•

When Monitored:
With the ignition on.

•

Set Condition:
The Occupant Classification Module (OCM) will set this DTC if either the Occupant Restraint Controller (ORC)
broadcasts the airbag deployment message on the Bus, or following a complete seat replacement, or following
an OCS Bladder and Cushion Kit installation.

Possible Causes

AIRBAG, CURTAIN, OR SEAT BELT TENSIONER DEPLOYED

SEAT REPLACED

OCS BLADDER AND CUSHION KIT INSTALLED

OCM

Diagnostic Test

DETERMINE ACTIVE OR STORED DTC

NOTE: Verify that the scan tool has the latest software update before proceeding with this test.

NOTE: Ensure that the battery is fully charged.
Turn the ignition on.

SELECT ACTIVE or STORED DTC:

ACTIVE DTC

Go To 2

STORED DTC

Go To 7

VERIFY IF AN AIRBAG, CURTAIN, OR SEAT BELT TENSIONER DEPLOYED

Turn the ignition off.

Verify if an airbag, curtain, or seat belt tensioner deployed.

Has an airbag, curtain, or seat belt tensioner deployed?

Yes

WARNING: To avoid personal injury or death, turn the ignition off, disconnect the battery and wait two min-
utes before proceeding.

Refer to the Service Information for a list of components that require inspection and replacement fol-
lowing an airbag, curtain, or tensioner deployment. Replace all required (per the Service Information),
deployed, and damaged airbag system components in accordance with the service information.

Perform BELT TENSION SENSOR VERIFICATION test.

Perform *AIRBAG SYSTEM VERIFICATION TEST - VER 1.

>> Go To 3

8O - 212

RESTRAINTS - ELECTRICAL DIAGNOSTICS

VERIFY IF OTHER OCS DTCs ARE ACTIVE

Verify if any of the following OCS DTCs are active:

•

Passenger Fluid Level Too Low

•

OCM Internal 1

•

OCM Data Transfer Error

•

Passenger Pressure Sensor Open

•

Passenger Pressure Sensor Short To Ground

•

Passenger Pressure Sensor Short To Battery

•

Passenger Pressure Sensor Short Together

•

Vehicle Body Style Mismatch

•

VIN Mismatch

Are any of these DTCs active?

Yes

>> Diagnose and repair the DTC(s). Refer to the Table of Contents in this section for a complete list of

Airbag System DTCs. When the repair is complete, Go To 4

>> Go To 4

PERFORM THE OCS VERIFICATION SYSTEM TEST

CAUTION: Do not perform this test step unless directed here by the previous test steps.

NOTE: The OCS Verification system test requires the use of special tool OCS Seat Weights MRL 9077.

NOTE: Verify that the vehicle’s interior temperature and the passenger seat temperature are between
12.77°C (55°F) and 35°C (95°F) for at least 30 minutes before proceeding with this test.

NOTE: Active DTCs will set in the OCM until the scan tool displays the words The OCS has been Verified.
Verify that the front passenger seat is empty and the seat belt is retracted.

Turn the ignition off, wait 15 seconds, then turn the ignition on.

With the scan tool in OCM, select System Test and then select Verify OCS.

•

Follow the directions displayed on the scan tool.

•

Allow 30 seconds for the seat to stabilize after adding or removing weight from the seat before continuing with
the test.

•

Proceed as follows when the test is complete.

Select the result:

The OCS has been Verified

The OCS has passed the test and the repair is complete.

Perform *AIRBAG SYSTEM VERIFICATION TEST - VER 1.

Test Failed - No EOL Calibration

Go To 5

Test Failed - K Allow is FF

Go To 5

Test Failed - K Empty Count is 0

Go To 5

Test Failed - Active DTCs Present

Correct the condition that caused the failure. Then Go To 6.

Test Failed - Temperature Out of Range

Correct the condition that caused the failure. Then, Go To 6.

Test Failed - Seat Pressure Too High

Correct the condition that caused the failure. Then, Go To 6.

Test Failed - Seat Pressure Too Low

Correct the condition that caused the failure. Then, Go To 6.

Test Failed - Power Up Time Too Short

RESTRAINTS - ELECTRICAL DIAGNOSTICS

8O - 213

Content .. 224 225 226 227 ..