Dodge Durango (HB). Manual — part 409
HB
POWER SEATS - ELECTRICAL DIAGNOSTICS
8N - 149
B1D63–POWER SEAT SWITCH OPEN
For the Power Seat System circuit diagram(Refer to 8 - ELECTRICAL/POWER SEATS - SCHEMATICS AND DIA-
GRAMS)
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
Continuously
•
Set Condition:
When the Seat Memory Module detects an open driver seat switch MUX circuit this code will set.
Possible Causes
(P309) DRIVER SEAT REAR VERTICAL/HORIZONTAL SWITCH MUX OPEN
(P311) DRIVER SEAT FRONT VERTICAL/RECLINER SWITCH MUX OPEN
(P28) DRIVER SEAT SWITCH MUX RETURN OPEN
DRIVER SEAT SWITCH
SEAT MEMORY MODULE
Diagnostic Test
1.
TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
With the scan tool, record and erase DTC’s
Press the Seat Switch in all directions several times.
Wait one minute.
With the scan tool, read DTC’s.
Does the scan tool display B1D63–POWER SEAT SWITCH
OPEN?
Yes
>> Go To 2
No
>> The conditions that caused this code to set are not
present at this time. Using the wiring diagram/schematic
as a guide, inspect the wiring and connectors.
Perform POWER SEAT SYSTEM VERIFICATION TEST -
VER 1.
2.
CHECK THE (P309) DRIVER SEAT REAR VERTICAL/
HORIZONTAL SWITCH MUX CIRCUIT RESISTANCE
Disconnect the Seat Memory Module C4 connector.
Note: Check connectors - Clean and repair as necessary.
Measure the resistance between the (P309) Driver Seat Rear Vertical/
Horizontal Switch MUX circuit and the (P28) Driver Seat Switch MUX
Return circuit in the C4 connector.
Is the resistance 47.0 ohms + or – 1.0?
Yes
>> Go To 3
No
>> Go To 5
8N - 150
POWER SEATS - ELECTRICAL DIAGNOSTICS
HB
B1D63–POWER SEAT SWITCH OPEN —
(CONTINUED)
3.
CHECK THE (P311) DRIVER SEAT FRONT VERTICAL/
RECLINER SWITCH MUX CIRCUIT RESISTANCE
Measure the resistance between the (P311) Driver Seat Front Vertical/
Recliner Switch MUX circuit and the (P28) Driver Seat Switch MUX
Return circuit in the C4 connector.
Is the resistance 47.0 ohms + or – 1.0?
Yes
>> Replace the Seat Memory Module.
Perform POWER SEAT SYSTEM VERIFICATION TEST –
VER 1
No
>> Go To 4
4.
CHECK THE (P311) DRIVER SEAT FRONT VERTICAL/
RECLINER SWITCH MUX WIRE RESISTANCE Disconnect the
Driver Seat Switch.
Note: Note:Check connectors - Clean and repair as necessary.
Measure the resistance of the (P311) Driver Seat Front Vertical/Re-
cliner Switch MUX circuit between the C4 connector and the Driver
Seat Switch connector.
Is the resistance below 1.0 ohm?
Yes
>> Replace the Driver Seat Switch.
Perform POWER SEAT SYSTEM VERIFICATION TEST –
VER 1
No
>> Repair the (P311) Driver Seat Front Vertical/Recliner
Switch MUX circuit for an open.
Perform POWER SEAT SYSTEM VERIFICATION TEST –
VER 1
5.
CHECK THE (P309) DRIVER SEAT REAR VERTICAL/
HORIZONTAL SWITCH MUX WIRE RESISTANCE
Measure the resistance of the (P309) Driver Seat Rear Vertical/Hori-
zontal Switch MUX circuit between the C4 connector and the Driver
Seat Switch connector.
Is the resistance below 1.0 ohm?
Yes
>> Go To 6
No
>> Repair the (P309) Driver Seat Rear Vertical/Horizontal
Switch MUX circuit for an open.
Perform POWER SEAT SYSTEM VERIFICATION TEST –
VER 1
HB
POWER SEATS - ELECTRICAL DIAGNOSTICS
8N - 151
B1D63–POWER SEAT SWITCH OPEN —
(CONTINUED)
6.
CHECK THE (P28) DRIVER SEAT SWITCH MUX RETURN
WIRE RESISTANCE
Measure the resistance of the (P28) Driver Seat Switch MUX Return
circuit between the C4 connector and the Driver Seat Switch connec-
tor.
Is the resistance below 1.0 ohm?
Yes
>> Replace the Driver Seat Switch.
Perform BODY VERIFICATION TEST – VER 1
No
>> Repair the (P28) Driver Seat Switch MUX Return circuit
for an open.
Perform POWER SEAT SYSTEM VERIFICATION TEST –
VER 1
8N - 152
POWER SEATS - ELECTRICAL DIAGNOSTICS
HB
B1D63–POWER SEAT SWITCH OPEN —
(CONTINUED)
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