Chrysler Town, Dodge Caravan. Manual — part 870
TEST
ACTION
APPLICABILITY
4
If there are no possible causes remaining, view repair.
All
Repair
Replace the Memory Seat Mirror Module.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
716
MEMORY SEAT
REAR RISER UP POSITION STUCK —
Continued
Symptom:
RECLINER DOWN POSITION STUCK
When Monitored and Set Condition:
RECLINER DOWN POSITION STUCK
When Monitored:
Continuously when the PCI bus is active.
Set Condition:
If the seat switch is active for 30 seconds, this code will set and the MSMM
will ignore the input until the state has changed. Three seconds after the stuck condition
is removed, the seat will resume to normal operation. Code will remain for 50 ignition
cycles.
POSSIBLE CAUSES
STORED DIAGNOSTIC TROUBLE CODE
DRIVER POWER SEAT SWITCH
SEAT RECLINER DOWN SWITCH SENSE WIRE SHORT TO VOLTAGE
MEMORY SEAT MIRROR MODULE
TEST
ACTION
APPLICABILITY
1
With the DRBIII
t, erase the DTC from Memory Seat Mirror Module.
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 MSMM.
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 MEMORY SYSTEM VERIFICATION TEST - VER 1.
2
Disconnect the Power Seat Switch connector.
Measure the voltage of the Recliner Down Switch Sense circuit.
Is there any voltage present?
All
Yes
→ Go To 3
No
→ Replace the Power Seat Switch.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
3
Disconnect the Power Seat Switch connector.
Disconnect the Memory Seat Mirror Module C1 connector.
Turn the ignition on.
Measure the voltage of the Recliner Down Switch Sense circuit to ground..
Is there any voltage present?
All
Yes
→ Repair the Recliner Down Switch Sense wire for a short to
voltage.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
No
→ Go To 4
717
MEMORY SEAT
TEST
ACTION
APPLICABILITY
4
If there are no possible causes remaining, view repair.
All
Repair
Replace the Memory Seat Mirror Module.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
718
MEMORY SEAT
RECLINER DOWN POSITION STUCK —
Continued
Symptom:
RECLINER SENSOR OUT OF RANGE HIGH
When Monitored and Set Condition:
RECLINER SENSOR OUT OF RANGE HIGH
When Monitored:
Continuously when the PCI bus is active.
Set Condition:
This condition is immediately set when the seat motor potentiometer
feeds a value higher than the Memory Seat Mirror Module has stored in EEPROM. Code
will remain for 50 ignition cycles.
POSSIBLE CAUSES
MEMORY SEAT MIRROR MODULE SENSOR GROUND OPEN
SEAT SENSOR GROUND WIRE OPEN
5 VOLT SUPPLY SHORTED HIGH
CHECK VOLTAGE ON RECLINER POSITION SIGNAL CIRCUIT
RECLINER SENSOR HIGH
CHECK RECLINER SENSOR SHORT TO MOTOR
MEMORY SEAT MIRROR MODULE RECLINER SENSOR HIGH
STORED DIAGNOSTIC TROUBLE CODE
TEST
ACTION
APPLICABILITY
1
With the DRBIII
t, erase the DTC from Memory Seat Mirror Module.
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 MSMM.
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 MEMORY SYSTEM VERIFICATION TEST - VER 1.
2
Turn ignition off.
Disconnect the Driver Power Seat Recliner Position Sensor connector.
Measure the resistance of the Seat Position Sensor Ground circuit at the driver
power seat Recliner connector to ground.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 3
No
→ Go To 8
719
MEMORY SEAT
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