Dodge Durango (HB). Manual — part 416
HB
POWER SEATS - ELECTRICAL DIAGNOSTICS
8N - 177
B1D7B–SEAT HORIZONTAL MOTOR CONTROL CIRCUIT PERFORMANCE
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:
Whenever the seat motor is activated.
•
Set Condition:
If the Seat Memory Module does not detect the rotation of the seat motor this DTC will set. This DTC will
only set when the seat switch is moved in the same direction three consecutive times.
Possible Causes
SEAT POSITION SENSOR CIRCUIT DIAGNOSTIC TROUBLE CODES
(G401) DRIVER SEAT HORIZONTAL POSITION SENSE CIRCUIT OPEN
(G491) DRIVER SEAT HORIZONTAL SENSOR GROUND CIRCUIT OPEN
(P115) DRIVER SEAT HORIZONTAL FORWARD DRIVER
(P117) DRIVER SEAT HORIZONTAL REARWARD DRIVER
DRIVER HORIZONTAL SEAT ADJUSTER MOTOR
SEAT MEMORY MODULE
Diagnostic Test
1.
CHECK FOR RELATED DIAGNOSTIC TROUBLE CODES
Turn the ignition on.
With the scan tool, read DTC’s.
Does the scan tool display any seat position sensor DTC’s?
Yes
>> Diagnose and repair the other DTC(s) first. Refer to the
Table of Contents in this Section for a complete list of
symptoms.
No
>> Go To 2
8N - 178
POWER SEATS - ELECTRICAL DIAGNOSTICS
HB
B1D7B–SEAT HORIZONTAL MOTOR CONTROL CIRCUIT PERFORMANCE — (CONTINUED)
2.
TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
With the scan tool, record and erase DTC’s
Move the Seat Switch in the Horizontal position 3 times.
With the scan tool, read DTC’s.
Does the scan tool display B1D7B–SEAT HORIZONTAL MOTOR
CONTROL CIRCUIT PERFORMANCE?
Yes
>> Go To 3
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.
3.
CHECK THE (G401) DRIVER SEAT HORIZONTAL POSITION
SENSE VOLTAGE
Disconnect the Driver Horizontal Seat Adjuster Motor.
Note: Check connectors – Clean and repair as necessary.
Move the Seat Switch in the Horizontal position during the next step.
Using a 12-volt test light connect one lead to the (G401) Driver Seat
Horizontal Position Sense circuit and the other lead to Driver Seat
Horizontal Sensor Ground at the Driver Horizontal Seat Adjuster Motor
connector.
Does the test light illuminate for approximately 2 seconds then
turn off with the seat switch engaged?
Yes
>> Go To 4
No
>> Go To 5
4.
CHECK THE DRIVER SEAT HORIZONTAL FORWARD/
REARWARD DRIVER VOLTAGE
Move the Seat Switch in the Horizontal position during the next step.
Using a 12-volt test light connect one lead to the (P115) Driver Seat
Horizontal Forward Driver circuit and the other lead to (P117) Driver
Seat Horizontal Rearward Driver circuit at the Driver Horizontal Seat
Adjuster Motor connector.
Does the test light illuminate with the seat switch engaged?
Yes
>> Replace the track/horizontal motor assembly.
Perform POWER SEAT SYSTEM VERIFICATION TEST –
VER 1
No
>> Go To 7
HB
POWER SEATS - ELECTRICAL DIAGNOSTICS
8N - 179
B1D7B–SEAT HORIZONTAL MOTOR CONTROL CIRCUIT PERFORMANCE — (CONTINUED)
5.
CHECK THE (G401) DRIVER SEAT HORIZONTAL POSITION
SENSE WIRE FOR AN OPEN
Disconnect the Seat Memory Module C3 connector.
Note: Check connectors – Clean and repair as necessary.
Measure the resistance of the (G401) Driver Seat Horizontal Position
Sense circuit at the Driver Horizontal Seat Adjuster Motor connector to
the C3 connector.
Is the resistance above 1.0 ohm?
Yes
>> Repair the (G401) Driver Seat Horizontal Position Sense
circuit for an open.
Perform POWER SEAT SYSTEM VERIFICATION TEST –
VER 1
No
>> Go To 6
8N - 180
POWER SEATS - ELECTRICAL DIAGNOSTICS
HB
B1D7B–SEAT HORIZONTAL MOTOR CONTROL CIRCUIT PERFORMANCE — (CONTINUED)
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