Chrysler 300M 2002 Service Manual page 2167

MEMORY SEAT
Symptom:
REAR RISER SENSOR OUT OF RANGE LOW
When Monitored and Set Condition:
REAR RISER SENSOR OUT OF RANGE LOW
When Monitored: Ignition on.
Set Condition: This condition is immediately set when the seat motor potentiometer
feeds a value lower than the Memory Heated Seat/Mirror Module has stored in EEPROM.
REAR RISER POS SIGNAL CKT SHORT TO GROUND
REAR RISER POSITION SIGNAL CKT OPEN
SEAT SENSOR 5 V SUPPLY SHORT TO GROUND
SEAT SENSOR 5 VOLT SUPPLY OPEN
REAR RISER SENSOR LOW
MEMORY HEATED SEAT MIRROR MODULE
MEMORY HEATED SEAT MIRROR MODULE
TEST
1 Ensure the Memory Heated Seat Mirror Module is fully connected before proceeding.
Disconnect the Driver Power Seat Rear Riser Sensor connector.
Turn ignition on.
Measure the voltage of the Seat Sensor 5 Volt Supply circuit.
Is the voltage above 4.5 volts?
No
Yes → Go To 5
2 Turn ignition off.
Disconnect the Memory Heated Seat Mirror Module C2 connector.
Measure the resistance of the Seat Sensor 5 Volt Supply circuit to ground.
Is the resistance below 100.0 ohms?
Yes → Repair the Seat Sensor 5 Volt Supply for a short to Ground.
No
POSSIBLE CAUSES
ACTION
→ Go To 2
Perform MEMORY HEATED SYSTEM VERIFICATION TEST -
VER 1.
→ Go To 3
444
APPLICABILITY
All
All