Chrysler Pacifica. Manual - part 33

Symptom:

LEFT SIDE IMPACT SENSOR 3 INTERNAL 1

When Monitored and Set Condition:

LEFT SIDE IMPACT SENSOR 3 INTERNAL 1

When Monitored:

At ignition on, the Left Side Impact Sensor 3 is equipped with onboard

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

Set Condition:

The code will set, if the ACM receives an Impact Sensor Internal 3

message from the Left Side Impact Sensor 1.

POSSIBLE CAUSES

ACM, LEFT SIDE IMPACT SENSOR 3

REPAIR IS COMPLETE

STORED CODE OR INTERMITTENT CONDITION

ACTIVE CODE PRESENT

TEST

ACTION

APPLICABILITY

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

ACM - STORED DTC

Go To

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

Replace the Left Side Impact Sensor 3.
Reconnect the vehicle body 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 Side Impact Sensor 3 Internal 1 DTC return?

All

Yes

→ Go To 3

→ Repair is complete.

Perform __AIRBAG VERIFICATION TEST - VER 1.

129

AIRBAG

TEST

ACTION

APPLICABILITY

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.

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 problem found at this time. Erase all codes before returning

vehicle to customer.

130

AIRBAG

LEFT SIDE IMPACT SENSOR 3 INTERNAL 1 —

Continued

Symptom List:

LOSS OF IGNITION RUN - START
ORC RUN - START DRIVER OPEN
ORC RUN - START DRIVER SHORT TO GROUND

Test Note:

All symptoms listed above are diagnosed using the same tests.

The title for the tests will be LOSS OF IGNITION RUN -
START.

When Monitored and Set Condition:

LOSS OF IGNITION RUN - START

When Monitored:

With the ignition in the Run - Start position the ACM monitors the

Run-Start Driver circuit for proper system voltage.

Set Condition:

If the voltage on the Run - Start Driver circuit drops below 4.5 volts, the

code will set.

ORC RUN - START DRIVER OPEN

When Monitored:

After the ignition is turned OFF, the IPM controlled transistor (high

side driver) places a diagnostic voltage on the ORC Run Only circuit for 60 seconds. An
open high side driver (HSD) circuit voltage is between 2.4 and 5.0 volts.

Set Condition:

This code will set within 8 second. Note: the diagnostic voltage will only

last for 60 seconds after the ignition is turned off.

ORC RUN - START DRIVER SHORT TO GROUND

When Monitored:

The IPM uses a microprocessor controlled transistor (high side driver)

to supply power to the ACM. The microprocessor monitors for short to ground when the
ignition is in the Run or Start position.

Set Condition:

The code will set within 1 second.

POSSIBLE CAUSES

ORC, LOSS OF IGNITION RUN - START

ACM, ORC RUN - START CIRCUIT OPEN

IPM, ORC RUN - START CIRCUIT OPEN

RUN - START DRIVER CIRCUIT OPEN

IPM, ORC RUN - START SHORT

ORC RUN - START SHORT

ACM, ORC RUN - START SHORT

STORED CODE OR INTERMITTENT CONDITION

ACTIVE CODE PRESENT

131

AIRBAG

TEST

ACTION

APPLICABILITY

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

All

ACM - ACTIVE DTC

ACM - STORED DTC

IPM - ACTIVE DTC

IPM - STORED DTC

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

With the DRBIII

t, read the active IPM DTC’s.

Are there any active ORC RUN - START DRIVER DTC’s?

All

Yes

→ Go To 3

→ WARNING: TURN THE IGNITION OFF, DISCONNECT THE

BATTERY AND WAIT TWO MINUTES BEFORE PROCEED-
ING. Replace the Airbag Control Module in accordance with
Service Instructions.
Perform __AIRBAG VERIFICATION TEST - VER 1.

Select the IPM active RUN - START DTC displayed on the DRB.

All

1. ORC RUN-START DRIVER OPEN

Go To

2. ORC RUN-START DRIVER SHORT TO GROUND

Go To

132

AIRBAG

LOSS OF IGNITION RUN - START —

Continued

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