Chrysler 300M 2002 Service Manual page 1926

Symptom:
PASSENGER SEAT HEAT OUTPUT SHORT TO GND
When Monitored and Set Condition:
PASSENGER SEAT HEAT OUTPUT SHORT TO GND
When Monitored: Ignition on, during the heated seat operation,
Set Condition: This code is set immediately after the Memory Heated Seat/Mirror
Module detects an output shorted to ground.
HEATED SEAT DRIVER CIRCUIT SHORT TO GROUND
PASENGER HEATED SEAT CUSHION SHORT TO GROUND
PASSENGER SEAT BACK HEATER SHORT GROUND
PASSENGER SEAT HEATER B+ DRIVER WIRE SHORT TO GROUND
MEMORY HEATED SEAT MIRROR MODULE
TEST
1 NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the drivers seat and the Seat Heater connectors are
at the rear of each seat.
Disconnect the Passenger Heated Seat Cushion 4-way connector.
Using the DRBIII, select: Body Memory Seat Module Read DTC's
Does the DRBIII still show Passenger Seat Heat Output Short to Gnd?
Yes → Go To 2
→ Go To 4
No
2 Turn ignition off.
NOTE: Raise the seat to the highest position to gain access to the connectors. The
MHSMM is located at the front of the drivers seat and the Seat Heater connectors are
at the rear of each seat.
Disconnect the Passenger Heated Seat Cushion 4-way connector.
Disconnect the Memory Heated Seat Mirror Module C3 connector.
Measure the resistance of the Passenger Seat Heater B+ Driver circuit to body
ground.
Is the resistance below 5.0 ohms?
Yes → Repair the Passenger Seat Heater B+ Driver wire for a short to
→ Go To 3
No
3 If there are no possible causes remaining, view repair.
Repair
ELECTRICALLY HEATED SYSTEMS
POSSIBLE CAUSES
ACTION
ground..
Perform MEMORY HEATED SYSTEM VERIFICATION TEST -
VER 1.
Replace the Memory Heated Seat Mirror Module
Perform MEMORY HEATED SYSTEM VERIFICATION TEST -
VER 1.
203
APPLICABILITY
All
All
All