Chrysler Pacifica. Manual — part 237
TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the Driver Power Seat Switch connector.
Disconnect the Driver Door Module C2 connector.
Inspect the Driver Front Riser/Pedal Forward 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 Driver Seat Front Riser/Pedal Forward Switch MUX
circuit as necessary.
Perform POWER SEAT SYSTEM VERIFICATION TEST - VER
1.
No
→ Replace the Driver Door Module.
Perform BODY VERIFICATION TEST - VER 1.
945
POWER SEATS
DRIVER FRONT RISER AND PEDAL FORWARD SWITCH SHORT - DDM
—
Continued
Symptom List:
DRIVER FRONT RISER DOWN SWITCH MESSAGE STUCK - MH-
SAPM
DRIVER FRONT RISER UP SWITCH MESSAGE STUCK - MHSAPM
DRIVER HORIZONTAL FORWARD SWITCH MESSAGE STUCK -
MHSAPM
DRIVER HORIZONTAL REARWARD SWITCH MESSAGE STUCK -
MHSAPM
DRIVER LUMBAR IN SWITCH MESSAGE STUCK - MHSAPM
DRIVER LUMBAR OUT SWITCH MESSAGE STUCK - MHSAPM
DRIVER REAR RISER DOWN SWITCH MESSAGE STUCK - MH-
SAPM
DRIVER REAR RISER UP SWITCH MESSAGE STUCK - MHSAPM
DRIVER RECLINER DOWN SWITCH MESSAGE STUCK - MHSAPM
DRIVER RECLINER UP SWITCH MESSAGE STUCK - MHSAPM
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be DRIVER FRONT RISER DOWN
SWITCH MESSAGE STUCK - MHSAPM.
When Monitored and Set Condition:
DRIVER FRONT RISER DOWN SWITCH MESSAGE STUCK - MHSAPM
When Monitored:
Continuously.
Set Condition:
If the switch is held in the on position for over 35 seconds, this code will
set.
DRIVER FRONT RISER UP SWITCH MESSAGE STUCK - MHSAPM
When Monitored:
Continuously.
Set Condition:
If the switch is held in the on position for over 35 seconds, this code will
set.
DRIVER HORIZONTAL FORWARD SWITCH MESSAGE STUCK - MHSAPM
When Monitored:
Continuously.
Set Condition:
If the switch is held in the on position for over 35 seconds, this code will
set.
DRIVER HORIZONTAL REARWARD SWITCH MESSAGE STUCK - MHSAPM
When Monitored:
Continuously.
Set Condition:
If the switch is held in the on position for over 35 seconds, this code will
set.
946
POWER SEATS
DRIVER LUMBAR IN SWITCH MESSAGE STUCK - MHSAPM
When Monitored:
Continuously.
Set Condition:
If the switch is held in the on position for over 35 seconds, this code will
set.
DRIVER LUMBAR OUT SWITCH MESSAGE STUCK - MHSAPM
When Monitored:
Continuously.
Set Condition:
If the switch is held in the on position for over 35 seconds, this code will
set.
DRIVER REAR RISER DOWN SWITCH MESSAGE STUCK - MHSAPM
When Monitored:
Continuously.
Set Condition:
If the switch is held in the on position for over 35 seconds, this code will
set.
DRIVER REAR RISER UP SWITCH MESSAGE STUCK - MHSAPM
When Monitored:
Continuously.
Set Condition:
If the switch is held in the on position for over 35 seconds, this code will
set.
DRIVER RECLINER DOWN SWITCH MESSAGE STUCK - MHSAPM
When Monitored:
Continuously.
Set Condition:
If the switch is held in the on position for over 35 seconds, this code will
set.
DRIVER RECLINER UP SWITCH MESSAGE STUCK - MHSAPM
When Monitored:
Continuously.
Set Condition:
If the switch is held in the on position for over 35 seconds, this code will
set.
POSSIBLE CAUSES
DRIVER SEAT SWITCH STUCK
TEST
ACTION
APPLICABILITY
1
View repair.
All
Repair
This DTC is for reference only. Check for DTC’s in the Driver Door
Module and refer to the symptom list.
Perform POWER SEAT SYSTEM VERIFICATION TEST - VER 1.
947
POWER SEATS
DRIVER FRONT RISER DOWN SWITCH MESSAGE STUCK - MHSAPM —
Continued
Symptom:
DRIVER FRONT RISER SENSOR OUT OF RANGE HIGH - MHSAPM
When Monitored and Set Condition:
DRIVER FRONT RISER SENSOR OUT OF RANGE HIGH - MHSAPM
When Monitored:
Continuously.
Set Condition:
This condition is immediately set when the seat motor potentiometer
feeds a value higher than the Memory/Heated Seat Adjustable Pedal Module has stored in
EEPROM. Code will remain for 50 ignition cycles.
POSSIBLE CAUSES
DRIVER SEAT POSITION SENSOR GROUND WIRE OPEN
MEMORY/HEATED SEAT ADJUSTABLE PEDAL MODULE SENSOR GROUND OPEN
DRIVER SEAT SENSOR 5 VOLT SUPPLY SHORTED HIGH
CHECK VOLTAGE ON DRIVER SEAT FRONT RISER POSITION SIGNAL CIRCUIT
FRONT RISER SENSOR HIGH
DRIVER FRONT RISER SEAT POSITION SENSOR SHORT TO MOTOR
MEMORY HEATED SEAT ADJUSTABLE PEDAL MODULE FRONT RISER HIGH
STORED DIAGNOSTIC TROUBLE CODE
TEST
ACTION
APPLICABILITY
1
With the DRBIII
t, erase the DTC from Memory/Heated Seat Adjustable Pedal
Module (MHSAPM).
Operate the driver’s power seat and memory system.
Turn the ignition switch to the Off position then start the engine and let run for one
minute.
With the DRB check for the same DTC to reset in the MHSAPM.
Did the same DTC reset?
All
Yes
→ Go To 2
No
→ Using the wiring diagram/schematic as a guide, inspect the
wiring and connectors for an intermittent condition.
Perform POWER SEAT SYSTEM VERIFICATION TEST - VER 1.
2
Turn ignition off.
Disconnect the Driver Front Riser Seat Position Sensor connector.
Measure the resistance of the Driver Seat Position Sensor Ground circuit at the
Driver Front Riser Seat Position Sensor connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 3
No
→ Go To 8
948
POWER SEATS
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