Chrysler Pacifica. Manual — part 31

TEST

ACTION

APPLICABILITY

2

WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN IGNITION
OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE
PROCEEDING.
Disconnect the Left Curtain or Seat Airbag connector.
NOTE: Check connectors - Clean and repair as necessary.
WARNING: DO NOT PLACE AN INTACT UNDEPLOYED CURTAIN AIRBAG
FACE DOWN ON A HARD SURFACE, THE AIRBAG WILL PROPEL INTO
THE AIR IF ACCIDENTALLY DEPLOYED, AND COULD RESULT IN SERI-
OUS OR FATAL INJURY.
Connect the appropriate Load Tool to the Left Curtain or Seat Airbag connector.
WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN IGNITION
ON, THEN RECONNECT THE BATTERY.
With the DRBIII

t, read active Airbag Control Module DTC’s.

Does the DRBIII

t display LEFT CURTAIN OR SEAT SQUIB SHORT TO GROUND?

All

Yes

→ Go To 3

No

→ Replace the Left Curtain or Seat Airbag in accordance with

Service Instructions.
Perform __AIRBAG VERIFICATION TEST - VER 1.

3

WARNING: TURN IGNITION OFF, DISCONNECT THE BATTERY AND WAIT
TWO MINUTES BEFORE PROCEEDING.
WARNING: DO NOT PLACE AN INTACT UNDEPLOYED CURTAIN AIRBAG
FACE DOWN ON A HARD SURFACE, THE AIRBAG WILL PROPEL INTO
THE AIR IF ACCIDENTALLY DEPLOYED, AND COULD RESULT IN SERI-
OUS OR FATAL INJURY.
Disconnect the Load Tool from the Left Curtain or Seat Airbag connector.
Disconnect the Airbag Control Module connector(s).
NOTE: Check connectors - Clean and repair as necessary.
Connect the appropriate Load Tool ACM adaptor to the ACM connector(s).
Measure the resistance of the Left Curtain or Seat Squib Line 1 and Line 2 circuits
between the Left Curtain or Seat Airbag connector and ground.
Is the resistance below 10K ohms on either Left Curtain or Seat circuit?

All

Yes

→ Repair Left Curtain or Seat Squib Line 1 or Line 2 shorted to

ground.
Perform __AIRBAG VERIFICATION TEST - VER 1.

No

→ Replace the Airbag Control Module in accordance with Service

Information. WARNING: IF THE AIRBAG CONTROL MODULE
IS DROPPED AT ANY TIME, IT MUST BE REPLACED.
Perform __AIRBAG VERIFICATION TEST - VER 1.

121

AIRBAG

LEFT CURTAIN OR SEAT SQUIB SHORT TO GROUND —

Continued

TEST

ACTION

APPLICABILITY

4

With the DRBIII

t, record and erase all DTC’s from all Airbag modules.

If equipped with Passenger Airbag On - Off switch, read the DTC’s in all switch
positions.
If any ACTIVE codes are present they must be resolved before diagnosing any stored
codes.
WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNI-
TION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE-
FORE 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 IGNI-
TION ON, THEN RECONNECT THE BATTERY.
With the DRBIII

t monitor active codes as you work through the following steps.

WARNING: TO AVOID PERSONAL INJURY OR DEATH, MAINTAIN A SAFE
DISTANCE FROM ALL AIRBAGS WHILE PERFORMING 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?

All

Yes

→ Select appropriate symptom from Symptom List.

No

→ No problem found at this time. Erase all codes before returning

vehicle to customer.

122

AIRBAG

LEFT CURTAIN OR SEAT SQUIB SHORT TO GROUND —

Continued

Symptom:

LEFT FRONT IMPACT SENSOR INTERNAL 1

When Monitored and Set Condition:

LEFT FRONT IMPACT SENSOR INTERNAL 1

When Monitored:

The Left Front Impact sensors is equipped with onboard diagnostics to

monitor the sensors internal circuits. If a problem is identified the sensor sends the Left
Front Impact sensor internal 1 message to the ACM.

Set Condition:

The code will set if the ACM receives an internal 1 message from the Left

Front Impact Sensor.

POSSIBLE CAUSES

ACM, LEFT FRONT IMPACT SENSOR 1

REPAIR IS COMPLETE

STORED CODE OR INTERMITTENT CONDITION

ACTIVE CODE PRESENT

TEST

ACTION

APPLICABILITY

1

Turn the ignition on.
NOTE: Ensure the battery is fully charged.
NOTE: For the purpose of this test, the AECM and ORC modules will be
referred to as an ACM.
SELECT ACTIVE or STORED DTC:

All

ACM - ACTIVE DTC

Go To

2

ACM - STORED DTC

Go To

4

NOTE: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.

2

Replace the Left Front Impact Sensor 1.
Reconnect the vehicle wire harness to the impact sensor.
Remove any special tools or jumper wires and reconnect all previously disconnected
components - except the Battery.
WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNI-
TION ON, THEN RECONNECT THE BATTERY.
Connect the DRB to the Data Link Connector - use the most current software
available.
Use the DRB III and erase the stored codes in all airbag system modules.
Turn the Ignition Off, and wait 15 seconds before turning the Ignition On.
Wait one minute, and read active codes and if there are none present read the stored
codes.
DID the active Left Front Impact Sensor 1 DTC return?

All

Yes

→ Go To 3

No

→ Test Complete.

123

AIRBAG

TEST

ACTION

APPLICABILITY

3

WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNI-
TION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE-
FORE PROCEEDING.
WARNING: IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY
TIME, IT MUST BE REPLACED. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT
AND PERSONAL INJURY OR DEATH.
If there are no possible causes remaining, view repair.

All

Repair

Replace the Airbag Control Module in accordance with Service
Instructions.
Perform __AIRBAG VERIFICATION TEST - VER 1.

4

With the DRBIII

t, record and erase all DTC’s from all Airbag modules.

If equipped with Passenger Airbag On - Off switch, read the DTC’s in all switch
positions.
If any ACTIVE codes are present they must be resolved before diagnosing any stored
codes.
WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNI-
TION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE-
FORE 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 IGNI-
TION ON, THEN RECONNECT THE BATTERY.
With the DRBIII

t monitor active codes as you work through the following steps.

WARNING: TO AVOID PERSONAL INJURY OR DEATH, MAINTAIN A SAFE
DISTANCE FROM ALL AIRBAGS WHILE PERFORMING 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?

All

Yes

→ Select appropriate symptom from Symptom List.

No

→ No problem found at this time. Erase all codes before returning

vehicle to customer.

124

AIRBAG

LEFT FRONT IMPACT SENSOR INTERNAL 1 —

Continued