Chrysler 300M 2002 Service Manual page 1912

Symptom:
DRIVER SEAT HEAT OUTPUT SHORT TO GND
When Monitored and Set Condition:
DRIVER SEAT HEAT OUTPUT SHORT TO GND
When Monitored: Ignition on, during the heated seat operation.
Set Condition: This code is set immediately after the Heated Seat Module detects an
output shorted to ground.
HEATED SEAT DRIVER CIRCUIT SHORT TO GROUND
DRIVER SEAT BACK HEATER SHORT GROUND
DRIVER HEATED SEAT CUSHION SHORT TO GROUND
DRIVER 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 seat and the Seat Heater connectors are at the
rear of the seat.
Disconnect the Driver Heated Seat Cushion 4-way connector.
With the DRBIII , erase DTC's.
Turn the ignition off, wait 20 seconds, then turn ignition on.
Turn the Driver Seat Heater on.
Using the DRBIII select: Body Memory Seat Module Read DTC's
Does the DRBIII still show the Driver Seat Heat Output Short to Gnd trouble code?
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 seat and the Seat Heater connectors are at the
rear of the seat.
Disconnect the Driver Heated Seat Cushion 4-way connector.
Disconnect the Memory Heated Seat Mirror Module C3 connector.
Measure the resistance of the Driver Seat Heater B+ Driver circuit to ground.
Is the resistance below 1000.0 ohms?
Yes → Repair the Driver Seat Heater B+ Driver wire for a short to
→ Go To 3
No
ELECTRICALLY HEATED SYSTEMS
POSSIBLE CAUSES
ACTION
ground.
Perform MEMORY HEATED SYSTEM VERIFICATION TEST -
VER 1.
189
APPLICABILITY
All
All