Chrysler RG Voyager. Manual — part 225
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
the BCM will set this code.
POSSIBLE CAUSES
DTC PRESENT
MEMORY SET SWITCH SHORTED
MEMORY SELECT SWITCH MUX SHORTED
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
With the DRBIII
t, record and erase DTC’s.
Cycle the ignition OFF then back ON.
With the DRBIII
t, read DTCs.
Operate the Memory Set switch several times while monitoring the DRBIII.
Does the DRBIII
t display MEMORY SWITCH INPUT SHORT?
All
Yes
→ Go To 2
No
→ Using the wiring diagram/schematic as a guide, inspect the
wiring and connectors for an intermittent condition.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
2
Disconnect the Memory Set Switch connector
Turn the ignition on.
With the DRBIII
t in Sensors, read the Memory Select SW Volts.
Is the voltage above 4.8 volts?
All
Yes
→ Replace the Memory Set Switch.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
No
→ Go To 3
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?
All
Yes
→ Go To 4
No
→ Repair the Memory Select Switch MUX circuit for a short to
ground.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
869
MEMORY SEAT
TEST
ACTION
APPLICABILITY
4
If there are no possible causes remaining, view repair.
All
Repair
Replace the Body Control Module.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
870
MEMORY SEAT
MEMORY SWITCH INPUT SHORT —
Continued
Symptom List:
PCI BUS SHORTED TO BATTERY
PCI BUS SHORTED TO GROUND
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be PCI BUS SHORTED TO BAT-
TERY.
When Monitored and Set Condition:
PCI BUS SHORTED TO BATTERY
When Monitored:
Continuously.
Set Condition:
Anytime the Memory Seat/Mirror/Adjustable Pedals Module detects a
short to battery on the PCI Bus circuit.
PCI BUS SHORTED TO GROUND
When Monitored:
Continuously.
Set Condition:
Anytime the Memory Seat/Mirror/Adjustable Pedals Module detects a
short to ground on the PCI Bus circuit.
POSSIBLE CAUSES
INTERMITTENT CONDITION
TEST
ACTION
APPLICABILITY
1
NOTE: For this code to be active, the DRBIII
t will not be able to communi-
cate with any modules on the vehicle (except the PCM).
NOTE: Clear the code. If this code continues to set and the DRBIII
t can still
communicate with the module, it will be necessary to replace the module.
NOTE: The conditions that set the DTC are not present at this time. The
following list may help in identifying the intermittent condition.
With the engine running at normal operating temperature, wiggle the wiring
harnesses. This is to try and duplicate the complete bus failure condition.
Refer to any Technical Service Bulletins (TSB) that may apply.
Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or
partially broken wires.
Visually inspect the related wiring harness connectors. Look for broken, bent, pushed
out, or corroded terminals.
Were any of the above conditions present?
All
Yes
→ Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
871
MEMORY SEAT
Symptom:
PCM MESSAGES NOT RECEIVED
When Monitored and Set Condition:
PCM MESSAGES NOT RECEIVED
When Monitored:
Continuously when the PCI bus is active.
Set Condition:
If the Memory Seat/Mirror/Adjustable Pedals Module does receive this
Bus message from the PCM. Code will remain for 50 ignition cycles.
POSSIBLE CAUSES
PCM MESSAGE NOT RECEIVED
ATTEMPT TO COMMUNICATE WITH THE PCM
PCI BUS CIRCUIT OPEN
POWERTRAIN CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, enter Instrument Cluster, System Tests then PCM Monitor.
Does the DRBIII
t display: PCM is active on BUS?
All
Yes
→ Erase the DTC, if DTC resets, replace the Memory Seat/Mirror/
Adjustable Pedals Module in accordance with the service infor-
mation.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
No
→ Go To 2
2
Turn the ignition on.
With the DRBIII
t, attempt to communicate with the PCM.
Was the DRBIII
t able to communicate with the PCM?
All
Yes
→ Go To 3
No
→ Refer to the communication category and perform the appropriate
symptom.
Perform BODY VERIFICATION TEST - VER 1.
872
MEMORY SEAT
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