Chrysler 300M 2002 Service Manual page 1907

ELECTRICALLY HEATED SYSTEMS
DRIVER HEATED SEAT SWITCH OPEN/SHORTED TO GROUND —
Continued
TEST
4 Disconnect the Memory Heated Seat Mirror Module C1 connector.
Measure the voltage between the Driver 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 Driver Heated Seat Switch connector.
Disconnect the Memory Heated Seat Mirror Module C1 connector.
Measure the resistance of the Driver Seat Heater Switch Mux circuit between the
MHSMM connector and the Driver Heated Seat Switch connector.
Is the resistance below 5.0 ohms?
Yes → Go To 6
→ Repair the open Driver Seat Heater Switch Mux wire.
No
6 Disconnect the Driver Heated Seat Switch connector.
Disconnect the Memory Heated Seat Mirror Module C1 connector.
Measure the resistance of the Driver Seat Heater Switch Mux circuit to ground.
Is the resistance below 1000.0 ohms?
Yes → Repair the Driver Seat Heater Switch Mux wire for a short to
→ Go To 7
No
7 If there are no possible causes remaining, view repair.
Repair
ACTION
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 Driver Heated Seat Switch.
Perform MEMORY HEATED SYSTEM VERIFICATION TEST -
VER 1.
184
APPLICABILITY
All
All
All
All