Chrysler 300M 2002 Service Manual page 1920

PASSENGER HEATED SEAT SWITCH OPEN/SHORTED TO GROUND —
Continued
TEST
3 Turn the ignition off.
Disconnect the Passenger Heated switch connector.
Turn the ignition on.
Measure the voltage of the Fused Ignition Switch Output circuit.
Is the voltage above 10.0 volts?
Yes → Go To 4
→ Repair the Fused Ignition Switch Output circuit for an open.
No
4 Reconnect any previously disconnected components.
Disconnect the Memory Heated Seat Mirror Module C1 connector.
Turn the ignition on.
Measure the voltage between the Passenger Seat Heater Switch Mux circuit and
ground.
Is the voltage above 10.0 volts?
Yes → Replace the Memory Heated Seat Module.
→ Go To 5
No
5 Disconnect the Passenger Heated Seat Switch connector.
Disconnect the Memory Heated Seat Mirror Module C1 connector.
Measure the resistance of the Passenger Seat Heater Switch Mux circuit between the
MHSMM connector and the Passenger Heated Seat Switch connector.
Is the resistance below 5.0 ohms?
Yes → Go To 6
→ Repair the open Passenger Seat Heater Switch Mux wire.
No
6 Disconnect the Passenger Heated Seat Switch connector.
Disconnect the Memory Heated Seat Mirror Module C1 connector.
Measure the resistance of the Passenger Seat Heater Switch Mux circuit to ground.
Is the resistance below 1000.0 ohms?
Yes → Repair the Passenger Seat Heater Switch Mux wire for a short to
→ Go To 7
No
7 If there are no possible causes remaining, view repair.
Repair
ELECTRICALLY HEATED SYSTEMS
ACTION
Perform MEMORY HEATED SYSTEM VERIFICATION TEST -
VER 1.
Perform MEMORY HEATED SYSTEM VERIFICATION TEST -
VER 1.
Perform MEMORY HEATED SYSTEM VERIFICATION TEST -
VER 1.
ground.
Perform MEMORY HEATED SYSTEM VERIFICATION TEST -
VER 1.
Replace the Passenger Heated Seat Switch.
Perform MEMORY HEATED SYSTEM VERIFICATION TEST -
VER 1.
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APPLICABILITY
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