Chrysler Pacifica. Manual — part 250
Symptom:
PASSENGER HORIZONTAL SEAT SWITCH SHORT - PDM
When Monitored and Set Condition:
PASSENGER HORIZONTAL SEAT SWITCH SHORT - PDM
When Monitored:
Continuously.
Set Condition:
If the MUX circuit is under 0.10 volt for over 10 seconds, this code will set.
POSSIBLE CAUSES
DTC PRESENT
POWER SEAT SWITCH
PASSENGER SEAT HORIZONTAL SWITCH MUX SHORT TO GROUND
PASSENGER DOOR MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, erase DTCs.
Cycle the ignition switch from Off to Run.
Operate the suspect switch in both positions several times.
With the DRBIII
t, read DTCs.
Does the DRBIII
t display PASSENGER HORIZONTAL SWITCH SHORT?
All
Yes
→ Go To 2
No
→ The condition that caused this code to set is not present at this
time.
Perform POWER SEAT SYSTEM VERIFICATION TEST - VER 1.
2
Disconnect the Passenger Power Seat Switch connector.
Turn the ignition on.
With the DRBIII
t, erase DTCs.
Cycle the ignition switch from Off to Run and wait 10 seconds.
With the DRBIII
t, read DTCs.
Does the DRBIII
t display PASSENGER HORIZONTAL SEAT SWITCH SHORT?
All
Yes
→ Go To 3
No
→ Replace the Power Seat Switch.
Perform POWER SEAT SYSTEM VERIFICATION TEST - VER 1.
997
POWER SEATS
TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the Passenger Power Seat Switch connector.
Disconnect the Passenger Door Module C2 connector.
Inspect the Passenger Seat Horizontal Switch MUX circuit for a short to ground or
to another circuit in the seat switch harness.
Were there any problems found?
All
Yes
→ Repair the Passenger Seat Horizontal Switch MUX circuit for a
short to ground.
Perform POWER SEAT SYSTEM VERIFICATION TEST - VER
1.
No
→ Replace the Passenger Door Module.
Perform BODY VERIFICATION TEST - VER 1.
998
POWER SEATS
PASSENGER HORIZONTAL SEAT SWITCH SHORT - PDM —
Continued
Symptom List:
PASSENGER HORIZONTAL SEAT SWITCH STUCK - PDM
PASSENGER RECLINER SWITCH STUCK - PDM
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be PASSENGER HORIZONTAL
SEAT SWITCH STUCK - PDM.
When Monitored and Set Condition:
PASSENGER HORIZONTAL SEAT SWITCH STUCK - PDM
When Monitored:
Continuously.
Set Condition:
If the switch is held in the on position for over 30 seconds, this code will
set.
PASSENGER RECLINER SWITCH STUCK - PDM
When Monitored:
Continuously.
Set Condition:
If the switch is held in the on position for over 30 seconds, this code will
set.
POSSIBLE CAUSES
DTC PRESENT
PASSENGER POWER SEAT SWITCH
PASSENGER SEAT RECLINER SWITCH MUX
PASSENGER DOOR MODULE
TEST
ACTION
APPLICABILITY
1
Check the seat switches mechanical operation and also check for a possible obstruc-
tion. Correct if necessary.
Turn the ignition on.
With the DRBIII
t, erase DTCs.
Cycle the ignition switch from Off to Run.
Operate the Seat Switch in all positions several times.
With the DRBIII
t, read DTCs.
Does the DRBIII
t display PASSENGER RECLINER SWITCH STUCK?
All
Yes
→ Go To 2
No
→ The condition that caused this code to set is not present at this
time. Operate the switch several times to ensure it does not stick.
If the switch ever sticks, replace it.
Perform POWER SEAT SYSTEM VERIFICATION TEST - VER 1.
999
POWER SEATS
TEST
ACTION
APPLICABILITY
2
Disconnect the Passenger Power Seat Switch connector.
Turn the ignition on.
With the DRBIII
t, erase DTCs.
Cycle the ignition switch from Off to Run and wait 30 seconds.
With the DRBIII
t, read DTCs.
Does the DRBIII
t display PASSENGER RECLINER SWITCH STUCK?
All
Yes
→ Go To 3
No
→ Replace the Passenger Power Seat Switch.
Perform POWER SEAT SYSTEM VERIFICATION TEST - VER 1.
3
Turn the ignition off.
Disconnect the Passenger Power Seat Switch connector.
Disconnect the Passenger Door Module C2 connector.
Inspect the Passenger Seat Recliner Switch MUX circuit for a partial short to ground
or to another circuit in the seat switch harness.
Were there any problems found?
All
Yes
→ Repair the Passenger Seat Recliner Switch MUX circuit as
necessary.
Perform POWER SEAT SYSTEM VERIFICATION TEST - VER
1.
No
→ Replace the Passenger Door Module.
Perform BODY VERIFICATION TEST - VER 1.
1000
POWER SEATS
PASSENGER HORIZONTAL SEAT SWITCH STUCK - PDM —
Continued
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