Chrysler Town, Dodge Caravan. Manual — part 723
TEST
ACTION
APPLICABILITY
3
WARNING: TURN IGNITION OFF, DISCONNECT THE BATTERY AND WAIT
TWO MINUTES BEFORE PROCEEDING.
Disconnect the Airbag Control Module connector(s).
NOTE: Check connectors - Clean and repair as necessary.
Measure the resistance between the Driver SBS Line 1 and line 2 circuit at the
Passenger SBS connector.
Is the resistance below 10K ohms?
All
Yes
→ Repair the Passenger Seat Belt Switch Line 1 and Line 2 shorted
together.
Perform AIRBAG VERIFICATION TEST - VER 1.
No
→ Go To 4
4
WARNING: TURN IGNITION OFF, DISCONNECT THE BATTERY AND WAIT
TWO MINUTES BEFORE PROCEEDING.
Disconnect the Airbag Control Module connector
NOTE: Check connectors - Clean and repair as necessary.
Measure the resistance of the Passenger SBS Line 1 and line 2 circuit between the
Passenger SBS connector and ground.
Is the resistance below 10K ohms on either circuit?
All
Yes
→ Repair the Passenger Seat Belt Switch line 1 or line 2 shorted to
ground.
Perform AIRBAG VERIFICATION TEST - VER 1.
No
→ Replace the Airbag Control Module in accordance with the Service
information. WARNING: IF THE AIRBAG CONTROL MODULE
IS DROPPED AT ANY TIME, IT MUST BE REPLACED.
Perform AIRBAG VERIFICATION TEST - VER 1.
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: TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND
WAIT TWO MINUTES BEFORE 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: TURN THE IGNITION ON, THEN RECONNECT THE BATTERY.
With the DRBIII
t monitor active codes as you work through the following steps.
WARNING: 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 circuits, rotate the steering wheel from stop to stop.
You have just attempted to simulate the condition that initially set the trouble code
message.
Did the DTC become active?
All
Yes
→ Select appropriate symptom from Symptom List.
No
→ No problem found at this time. Erase all codes before returning
vehicle to customer.
128
AIRBAG
PASSENGER SEAT BELT SWITCH SHORT TO GROUND —
Continued
Symptom:
PASSENGER SEAT BELT TENSIONER CIRCUIT OPEN
When Monitored and Set Condition:
PASSENGER SEAT BELT TENSIONER CIRCUIT OPEN
When Monitored:
With the ignition on, the ACM monitors the resistance of the Passenger
Seat Belt Tensioner circuits.
Set Condition:
When the ACM detects an open circuit or high resistance in the Passenger
Seat Belt Tensioner circuits.
POSSIBLE CAUSES
PASSENGER SEAT BELT TENSIONER CIRCUIT OPEN
PASSENGER SEAT BELT TENSIONER LINE 1 OR LINE 2 CIRCUIT OPEN
ACM, PASSENGER SEAT BELT TENSIONER CIRCUIT OPEN
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
WARNING: TURN IGNITION OFF, DISCONNECT THE BATTERY AND WAIT
TWO MINUTES BEFORE PROCEEDING.
Disconnect the Passenger Seat Belt Tensioner connector.
NOTE: Check connectors - Clean and repair as necessary.
Connect the appropriate Load Tool to the Passenger Seat Belt Tensioner connector.
WARNING: TURN IGNITION ON, THEN RECONNECT THE BATTERY.
With the DRBIII
t, read the active Airbag Control Module DTC’s.
Does the DRBIII
t display PASSENGER SBT CIRCUIT OPEN?
All
Yes
→ Go To 3
No
→ Replace the Passenger Seat Belt Tensioner in accordance with the
Service Information.
Perform AIRBAG VERIFICATION TEST - VER 1.
129
AIRBAG
TEST
ACTION
APPLICABILITY
3
WARNING: TURN IGNITION OFF, DISCONNECT THE BATTERY AND WAIT
TWO MINUTES BEFORE PROCEEDING.
Disconnect the Load Tool from the Passenger SBT 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 Airbag Control Module
connector.
Measure the resistance of the Passenger Seat Belt Tensioner Line 1 and Line 2
circuits between the Load Tool Adaptor and the Passenger SBT connector.
Is the resistance below 1.0 ohms on either circuit ?
All
Yes
→ Replace the Airbag Control Module in accordance with the Service
information. WARNING: IF THE AIRBAG CONTROL MODULE
IS DROPPED AT ANY TIME, IT MUST BE REPLACED.
Perform AIRBAG VERIFICATION TEST - VER 1.
No
→ Repair open or high resistance in Passenger Seat Belt Tensioner
Line 1 or Line 2 circuits.
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: TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND
WAIT TWO MINUTES BEFORE 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: TURN THE IGNITION ON, THEN RECONNECT THE BATTERY.
With the DRBIII
t monitor active codes as you work through the following steps.
WARNING: 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 circuits, rotate the steering wheel from stop to stop.
You have just attempted to simulate the condition that initially set the trouble code
message.
Did the DTC become active?
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
PASSENGER SEAT BELT TENSIONER CIRCUIT OPEN —
Continued
Symptom:
PASSENGER SEAT BELT TENSIONER CIRCUIT SHORT
When Monitored and Set Condition:
PASSENGER SEAT BELT TENSIONER CIRCUIT SHORT
When Monitored:
With the ignition on, the ACM monitors the resistance between the
Passenger Seat Belt Tensioner circuits.
Set Condition:
When the ACM detects low resistance in the Passenger Seat Belt
Tensioner circuits.
POSSIBLE CAUSES
PASSENGER SEAT BELT TENSIONER LINE 1 SHORT TO LINE 2
PASSENGER SEAT BELT TENSIONER CIRCUIT SHORT
ACM, PASSENGER SEAT BELT TENSIONER CIRCUIT SHORT
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
WARNING: TURN IGNITION OFF, DISCONNECT THE BATTERY AND WAIT
TWO MINUTES BEFORE PROCEEDING.
Disconnect the Passenger Seat Belt Tensioner connector.
NOTE: Check connectors - Clean and repair as necessary.
Connect the appropriate Load Tool to the Passenger Seat Belt Tensioner connector.
WARNING: TURN IGNITION ON, THEN RECONNECT THE BATTERY.
With the DRBIII
t, read the active Airbag Control Module DTC’s.
Does the DRBIII
t show PASSENGER SEAT BELT TENSIONER CIRCUIT SHORT?
All
Yes
→ Go To 3
No
→ Replace the Passenger Seat Belt Tensioner in accordance with the
Service Information.
Perform AIRBAG VERIFICATION TEST - VER 1.
131
AIRBAG
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