Chrysler 300M 2002 Service Manual page 1932

PASSENGER THERMISTOR OUT OF RANGE LOW —
TEST
7 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 C2 connector.
Measure the resistance of the Seat Sensor 5 volt Supply circuit to ground.
Is the resistance below 1000.0 ohms (should be infinite)?
Yes → Repair the Passenger Seat Temperature 5 volt Supply for a short
→ Go To 8
No
8 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 C2 connector.
Measure the resistance of the Passenger Seat Temperature 5 volt Supply wire
between the MHSMM connector and the passenger heated seat cushion connector,
harness side.
Is the resistance below 5.0 ohms?
Yes → Go To 9
→ Repair the open Passenger Seat Temperature 5 Volt Supply wire.
No
9 If there are no possible causes remaining, view repair.
Repair
ELECTRICALLY HEATED SYSTEMS
ACTION
to Ground.
Perform MEMORY HEATED SYSTEM VERIFICATION TEST -
VER 1.
Perform MEMORY HEATED SYSTEM VERIFICATION TEST -
VER 1.
Replace the Memory Heated Seat Mirror Module.
Perform MEMORY HEATED SYSTEM VERIFICATION TEST -
VER 1.
209
Continued
APPLICABILITY
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