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
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
ACM - STORED DTC
NOTE: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.
2
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
No
→ Repair is complete.
Perform __AIRBAG VERIFICATION TEST - VER 1.
129
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.
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
1
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.
2
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
No
→ 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.
3
Select the IPM active RUN - START DTC displayed on the DRB.
All
1. ORC RUN-START DRIVER OPEN
2. ORC RUN-START DRIVER SHORT TO GROUND
132
AIRBAG
LOSS OF IGNITION RUN - START —
Continued
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