Dodge Ram 2004 Service Manual page 131

PASSENGER AIRBAG ON-OFF SWITCH SHORT TO BATTERY —
TEST
3 WARNING: TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND
WAIT TWO MINUTES BEFORE 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 & 4 and 2 & 4.
Is the resistance below 10K ohms on either test?
Yes → Replace the Passenger Airbag ON - OFF Switch in accordance
No
4 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 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.
WARNING: IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY
TIME, IT MUST BE REPLACED.
WARNING: TURN IGNITION ON, THEN RECONNECT THE BATTERY.
Measure the voltage on the PAB MUX Switch Sense and PAB MUX Switch Return
circuits at the PAB On - Off Switch connector.
Is there any voltage on either circuit?
Yes → Repair the Passenger Airbag MUX Switch circuits shorted to
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
with the service information.
Perform __AIRBAG VERIFICATION TEST - VER 1.
→ Go To 4
→ Replace the Passenger Airbag ON - OFF Switch in accordance
with the service information.
Perform __AIRBAG VERIFICATION TEST - VER 1.
battery.
Perform __AIRBAG VERIFICATION TEST - VER 1.
→ Go To 6
Replace the Airbag Control Module in accordance with Service
Instructions.
Perform __AIRBAG VERIFICATION TEST - VER 1.
117
AIRBAG
Continued
APPLICABILITY
All
All
All
All