Memory Switch Input Short - Chrysler Town and Country 2003 Owner's Manual

Symptom:

MEMORY SWITCH INPUT SHORT

When Monitored and Set Condition:
MEMORY SWITCH INPUT SHORT
When Monitored: Anytime the Body Control Module is awake.
Set Condition: If the Memory Set switch voltage is less than 1.35 volts for over 10
seconds.
DTC PRESENT
MEMORY SET SWITCH SHORTED
MEMORY SELECT SWITCH MUX SHORTED
BODY CONTROL MODULE
TEST
1 With the DRBIII , record and erase DTC's.
Cycle the ignition OFF then back ON.
With the DRBIII , read DTCs.
Operate the Memory Set switch several times while monitoring the DRBIII.
Does the DRBIII display MEMORY SWITCH INPUT SHORT?
Yes → Go To 2
→ Using the wiring diagram/schematic as a guide, inspect the
No
2 Disconnect the Memory Set Switch connector
Turn the ignition on.
With the DRBIII in Sensors, read the Memory Select SW Volts.
Is the voltage above 4.8 volts?
Yes → Replace the Memory Set Switch.
→ Go To 3
No
3 Turn the ignition off.
Disconnect the Memory Set switch connector.
Disconnect the BCM C1 harness connector.
Measure the resistance between ground and the Memory Select Switch MUX circuit.
Is the resistance above 5.0 ohms?
Yes → Go To 4
→ Repair the Memory Select Switch MUX circuit for a short to
No
POSSIBLE CAUSES
ACTION
wiring and connectors for an intermittent condition.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
ground.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
705
MEMORY SEAT
APPLICABILITY
All
All
All