Chrysler 300M 2002 Service Manual page 2168

REAR RISER SENSOR OUT OF RANGE LOW —
TEST
3 Turn ignition off.
Disconnect the Driver Power Seat Rear Riser Sensor connector.
Disconnect the Memory Heated Seat Mirror Module C2 connector.
Measure the resistance of the Seat Sensor 5 Volt Supply circuit between the Sensor
connector and the Module connector.
Is the resistance below 5.0 ohms?
Yes → Go To 4
→ Repair the open Seat Sensor 5 Volt Supply circuit.
No
4 If there are no possible causes remaining, view repair.
Repair
5 Turn ignition off.
Disconnect the Driver Power Seat Rear Riser Sensor connector.
Connect a jumper wire between Seat Sensor 5 Volt Supply and Rear Riser Position
Signal circuits.
Ensure the Memory Seat Module is fully connected before proceeding.
With the DRBIII select: Body Memory Seat Sensors
Turn ignition on.
Read the Rear Riser Position Sensor voltage
Is the voltage above 4.5 volts?
Yes → Replace the Seat Track Assembly.
→ Go To 6
No
6 Turn ignition off.
Disconnect the Memory Heated Seat Module C1 connector.
Disconnect the Driver Power Seat Rear Riser Sensor connector.
Measure the resistance of the Rear Riser Position Signal circuit to ground.
Is the resistance below 1000 ohms?
Yes → Repair the Rear Riser Position Signal Circuit for a short to
→ Go To 7
No
7 Turn ignition off.
Disconnect the Memory Heated Seat Mirror Module C1 connector.
Disconnect the Driver Power Seat Rear Riser Sensor connector.
Measure the resistance of the Rear Riser Position Signal circuit between the Sensor
connector and the Module connector.
Is the resistance below 5.0 ohms?
Yes → Go To 8
→ Repair the open Rear Riser Position Signal circuit.
No
ACTION
Perform MEMORY HEATED SYSTEM VERIFICATION TEST -
VER 1.
Replace the Memory Heated Seat Mirror Module.
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.
Perform MEMORY HEATED SYSTEM VERIFICATION TEST -
VER 1.
Continued
445
MEMORY SEAT
APPLICABILITY
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