Chrysler 300M 2002 Service Manual page 2166

REAR RISER SENSOR OUT OF RANGE HIGH —
TEST
4 Ensure all seat and sensor connectors are connected and front riser motor is
operational.
With the DRBIII select: Body Memory Seat Sensors
Monitor the Rear Riser Position sensor while operating the seat rear riser to both
limits.
Did the voltage ever go above 8.0 volts ONLY when the motor was in operation?
Yes → Replace the Seat Track Assembly.
→ Go To 5
No
5 Disconnect the Memory Seat Module C1 connector.
Disconnect the Driver Power Seat Rear Riser Sensor connector.
Turn ignition on.
Measure the voltage between Rear Riser Position Signal circuit and ground.
Is there ANY voltage on the Rear Riser Position Signal circuit?
→ Go To 6
No
Yes → Repair the Rear Riser Position Signal circuit for a short to
6 Disconnect the Driver Power Seat Rear Riser Sensor connector.
Turn ignition on.
Measure the voltage between the Seat Sensor 5 volt supply circuit and ground.
Is the voltage above 5.5 volts?
Yes → Repair the seat sensor 5 volt supply circuit for a short to battery.
→ Go To 7
No
7 Turn ignition off.
Disconnect the Driver Power Seat Rear Riser Sensor connector.
Ensure the Memory Seat Module is fully connected before proceeding.
Turn ignition on.
With the DRBIII select: Body Memory Seat Sensors
Read the Rear Riser Position Sensor voltage
Is the voltage above 0.2 volts?
Yes → Go To 8
→ Replace the Seat Track Assembly
No
8 If there are no possible causes remaining, view repair.
Repair
ACTION
Perform MEMORY HEATED SYSTEM VERIFICATION TEST -
VER 1.
voltage.
Perform MEMORY HEATED SYSTEM VERIFICATION TEST -
VER 1.
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.
Continued
443
MEMORY SEAT
APPLICABILITY
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