Chrysler PT Cruiser. Manual — part 17
Symptom:
LEFT CURTAIN OR SEAT SQUIB CIRCUIT OPEN
When Monitored and Set Condition:
LEFT CURTAIN OR SEAT SQUIB CIRCUIT OPEN
When Monitored:
With the ignition on, the ACM monitors the resistance of the Left Seat
Squib circuits.
Set Condition:
When the ACM detects an open circuit or high resistance on the Left Seat
Squib circuits.
POSSIBLE CAUSES
LEFT CURTAIN OR SEAT SQUIB CIRCUIT OPEN
LEFT CURTAIN OR SEAT SQUIB LINE 1 OR LINE 2 CIRCUIT OPEN
ACM, LEFT CURTAIN OR SEAT SQUIB CIRCUIT OPEN
STORED CODE OR INTERMITTENT CONDITION
ACTIVE CODE PRESENT
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
NOTE: Ensure that 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.
55
AIRBAG
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.
WARNING: TO AVOID PERSONAL INJURY OR DEATH, DO NOT PLACE AN
INTACT UNDEPLOYED CURTAIN AIRBAG FACE DOWN ON A HARD SUR-
FACE, THE AIRBAG WILL PROPEL INTO THE AIR IF ACCIDENTALLY
DEPLOYED.
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.
NOTE: Check connectors - Clean and repair as necessary.
With the DRBIII
t, read active Airbag Control Module DTC’s.
Does the DRBIII
t show LEFT CURTAIN OR SEAT SQUIB SEAT OPEN?
All
Yes
→ Go To 3
No
→ Replace Left Curtain or Seat Airbag in accordance with the
Service Information.
Perform __AIRBAG VERIFICATION TEST - VER 1.
3
WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN IGNITION
OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE
PROCEEDING.
Disconnect the Airbag 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 Adapter to the Airbag Control Module
connector(s).
Measure the resistance of the Curtain or Seat Squib Line 1 and Line 2 circuits
between the Load Tool ACM adaptor and the Curtain or Seat Airbag connector.
Is the resistance below 1.0 ohms on both circuits?
All
Yes
→ Go To 4
No
→ Repair open or high resistance in the Left Curtain or Seat Squib
Line 1 or Line 2 circuits.
Perform __AIRBAG VERIFICATION TEST - VER 1.
4
WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN IGNITION
OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE
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 the Service
information.
Perform __AIRBAG VERIFICATION TEST - VER 1.
56
AIRBAG
LEFT CURTAIN OR SEAT SQUIB CIRCUIT OPEN —
Continued
TEST
ACTION
APPLICABILITY
5
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.
57
AIRBAG
LEFT CURTAIN OR SEAT SQUIB CIRCUIT OPEN —
Continued
Symptom:
LEFT CURTAIN OR SEAT SQUIB CIRCUIT SHORT
When Monitored and Set Condition:
LEFT CURTAIN OR SEAT SQUIB CIRCUIT SHORT
When Monitored:
With the ignition on, the ACM monitors the resistance between the
Left Seat Squib circuits.
Set Condition:
When the ACM detects a low resistance between the Left Seat Squib
circuits.
POSSIBLE CAUSES
LEFT CURTAIN OR SEAT SQUIB CKT SHORT
LEFT CURTAIN OR SEAT SQUIB LINE 1 SHORTED TO LINE 2
ACM, LEFT CURTAIN OR SEAT SQUIB CIRCUIT SHORT
STORED CODE OR INTERMITTENT CONDITION
ACTIVE CODE PRESENT
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
NOTE: Ensure that 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.
58
AIRBAG
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