Dodge Ram 2004 Service Manual page 128

AIRBAG
PASSENGER AIRBAG ON-OFF SWITCH OPEN —
TEST
3 Gain access to the Passenger Airbag On - Off Switch connector.
Is the Passenger Airbag On - Off Switch connected to the dash harness?
Yes → Go To 4
No
4 WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNI-
TION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE-
FORE PROCEEDING.
Disconnect the Passenger Airbag On - Off Switch.
NOTE: Check connectors - Clean and repair as necessary.
Measure the PAB On - Off Switch resistance between terminals 1 and 2 in both
switch positions.
The switch resistance specifications are: ON position = 175.0 to 190.0 ohms and OFF
position = 820.0 to 870.0 ohms.
Is the resistance within range for both switch positions?
Yes → Go To 5
No
5 Disconnect the Airbag Control Module connector(s).
NOTE: Check connectors - Clean and repair as necessary.
WARNING: IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY
TIME, IT MUST BE REPLACED.
Connect the appropriate Load Tool Adaptor to the Airbag Control Module connector.
Measure the resistance of the PAB MUX Switch Sense between the ACM Adaptor and
the PAB On - Off Switch connector.
Measure the resistance of the PAB MUX Switch Return circuit between the ACM
Adaptor and the PAB On - Off Switch connector.
Is the resistance below 5.0 ohms on both circuits?
Yes → Go To 6
No
6 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.
Repair:
ACTION
→ Connect the Passenger Airbag On - Off switch to the dash harness
connector.
Perform __AIRBAG VERIFICATION TEST - VER 1.
→ Replace the Passenger Airbag ON - OFF Switch in accordance
with the service information.
Perform __AIRBAG VERIFICATION TEST - VER 1.
→ Repair the open Passenger Airbag MUX Switch circuit(s).
Perform __AIRBAG VERIFICATION TEST - VER 1.
Replace the Airbag Control Module in accordance with Service
Instructions.
Perform __AIRBAG VERIFICATION TEST - VER 1.
Continued
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APPLICABILITY
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