2006 MERCEDES-BENZ SPRINTER Service Manual

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Page 41 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual Symptom:
DRIVER SEAT BELT TENSIONER SHORT TO BATTERY
When Monitored and Set Condition:
DRIVER SEAT BELT TENSIONER SHORT TO BATTERY
When Monitored: With the ignition on the ACM monitors the voltage of

Page 42 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual TEST ACTION APPLICABILITY
3WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN IGNITION
OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE
PROCEEDING.
Disconnect the Load Tool from the Driver Seat B

Page 43 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual TEST ACTION APPLICABILITY
5 With the DRBIIIt, record and erase all DTCs from all Airbag modules.
If equipped with Passenger Airbag On - Off switch, read the DTCs in all switch
positions.
If any ACTI

Page 44 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual Symptom:
DRIVER SEAT BELT TENSIONER SHORT TO GROUND
When Monitored and Set Condition:
DRIVER SEAT BELT TENSIONER SHORT TO GROUND
When Monitored: With the ignition on the ACM monitors the voltage of th

Page 45 of 2305

TEST ACTION APPLICABILITY
3WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN IGNITION
OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE
PROCEEDING.
Disconnect the Load Tool from the Driver Seat Belt Tensioner 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(s).
Measure the resistance of the Driver SBT Line 1 and Line 2 circuits between the
Driver SBT connector and ground.
Is the resistance below 10K ohms on either circuit?All
Ye s!Repair Driver Seat Belt Tensioner Line 1 or Line 2 circuits short
to ground.
Perform AIRBAG VERIFICATION TEST - VER 1.
No!Go To 4
4WARNING: 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.
5 With the DRBIIIt, 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 DRBIIItmonitor 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 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
Ye s!Select appropriate symptom from Symptom List.
No!No problem found at this time. Erase all codes before returning
vehicle to customer.
32
AIRBAG
DRIVER SEAT BELT TENSIONER SHORT TO GROUND ÐContinued

Page 46 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual Symptom:
DRIVER SQUIB 1 CIRCUIT OPEN
When Monitored and Set Condition:
DRIVER SQUIB 1 CIRCUIT OPEN
When Monitored: With the ignition on, the ACM monitors the resistance of the Driver
Squib 1 circuits.

Page 47 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual TEST ACTION APPLICABILITY
2WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNI-
TION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE-
FORE PROCEEDING.
Disconnect the Driver Airbag Squib conn

TEST ACTION APPLICABILITY
2WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNI-
TION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE-
FORE PROCEEDING.
Disconnect the Driver Airbag Squib connector(s).
NOTE: Check connectors - Clean and repair as necessary.
WARNING: TO AVOID PERSONAL INJURY OR DEATH, DO NOT PLACE AN
INTACT UNDEPLOYED AIRBAG FACE DOWN ON A HARD SURFACE, THE
AIRBAG WILL PROPEL INTO THE AIR IF ACCIDENTALLY DEPLOYED.
Connect the appropriate Load Tool to the Driver Airbag connector(s).
WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNI-
TION ON, THEN RECONNECT THE BATTERY.
With the DRBIIIt, read the active Airbag Control Module DTC's.
Does the DRBIIItshow DRIVER SQUIB 1 CIRCUIT OPEN?All
Ye s!Go To 3
No!Replace the Driver Airbag in accordance with the Service Infor-
mation.
Perform AIRBAG VERIFICATION TEST - VER 1.
3WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNI-
TION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE-
FORE PROCEEDING.
Disconnect the Load Tool from the Driver Airbag connector(s).
Disconnect the Clockspring connector(s).
NOTE: Check connectors - Clean and repair as necessary.
Connect the appropriate Load Tool to the Clockspring connector(s).
WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNI-
TION ON, THEN RECONNECT THE BATTERY.
With the DRBIIIt, read the active Airbag Control Module DTC's.
Does the DRBIIItshow DRIVER SQUIB 1 CIRCUIT OPEN?All
Ye s!Go To 4
No!Replace the Clockspring in accordance with the Service Informa-
tion.
Perform AIRBAG VERIFICATION TEST - VER 1.
4WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNI-
TION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE-
FORE PROCEEDING.
Disconnect the Load Tool from the Clockspring connector(s).
Disconnect the Airbag Control Module connector(s).
NOTE: Check connectors - Clean and repair as necessary.
Connect the appropriate Load Tool Adaptor to the Airbag Control Module connec-
tor(s).
Measure the resistance of the Driver Squib 1 Line 1 and Line 2 circuits between the
ACM Adaptor and the Clockspring connector(s).
Is the resistance below 1.0 ohm on both circuits?All
Ye s!Go To 5
No!Repair open or high resistance in the Driver Squib 1 Line 1 or
Line 2 circuits.
Perform AIRBAG VERIFICATION TEST - VER 1.
34
AIRBAG
DRIVER SQUIB 1 CIRCUIT OPEN ÐContinued

Page 48 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual TEST ACTION APPLICABILITY
5WARNING: 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

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