Dodge Durango (HB). Manual — part 414
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:
When the seat motor is activated (sensor supply voltage is switched on whenever motor is activated).
•
Set Condition:
If during motor operation the sensor voltage is not within a specified range this code will set. This DTC
will only set when the seat switch is moved in the same direction three consecutive times.
Possible Causes
(G402) DRIVER SEAT REAR VERTICAL POSITION SENSE CIRCUIT SHORTED TO VOLTAGE
REAR DRIVER VERTICAL SEAT ADJUSTER MOTOR
SEAT MEMORY MODULE
Diagnostic Test
1.
TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
With the scan tool, record and erase DTC’s
Move the seat switch rear vertical position 3 times.
With the scan tool, read DTC’s.
Does the scan tool display B1D76–SEAT REAR VERTICAL
POSITION SENSOR CIRCUIT HIGH?
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.
HB
POWER SEATS - ELECTRICAL DIAGNOSTICS
8N - 169
B1D76–SEAT REAR VERTICAL POSITION SENSOR CIRCUIT HIGH —
(CONTINUED)
2.
CHECK THE (G402) DRIVER SEAT REAR VERTICAL
POSITION SENSE VOLTAGE
Disconnect the Rear Driver Vertical Seat Adjuster Motor.
Note: Check connectors – Clean and repair as necessary.
With the scan tool erase DTC’s
Move the seat switch in the both rear vertical positions 3 times.
With the scan tool, read DTC’s.
Does the same DTC reset?
No
>> Inspect the position sense wire for a possible intermittent
short to voltage from another circuit, if OK replace the
Rear Driver Vertical Seat Adjuster Motor assembly.
Perform POWER SEAT SYSTEM VERIFICATION TEST –
VER 1
Yes
>> Inspect the position sense wire for a possible short to volt-
age from another circuit, if OK replace the Seat Memory
Module.
Perform POWER SEAT SYSTEM VERIFICATION TEST –
VER 1
8N - 170
POWER SEATS - ELECTRICAL DIAGNOSTICS
HB
B1D76–SEAT REAR VERTICAL POSITION SENSOR CIRCUIT HIGH —
(CONTINUED)
HB
POWER SEATS - ELECTRICAL DIAGNOSTICS
8N - 171
B1D79–SEAT BACKREST POSITION SENSOR CIRCUIT LOW
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:
When the seat motor is activated (sensor supply voltage is switched on whenever motor is activated).
•
Set Condition:
If sensor voltage is not within a specified range this DTC will set. This DTC will only set when the seat
switch is moved in the same direction three consecutive times.
Possible Causes
(G403) DRIVER SEAT RECLINER POSITION SENSE CIRCUIT SHORTED TO GROUND
DRIVER RECLINER SEAT ADJUSTER MOTOR
SEAT MEMORY MODULE
Diagnostic Test
1.
TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
With the scan tool, record and erase DTC’s
Move the Seat Switch recliner position 3 times.
With the scan tool, read DTC’s.
Does the scan tool display B1D79–SEAT BACKREST POSITION
SENSOR CIRCUIT LOW?
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.
8N - 172
POWER SEATS - ELECTRICAL DIAGNOSTICS
HB
B1D79–SEAT BACKREST POSITION SENSOR CIRCUIT LOW —
(CONTINUED)
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