Jeep Grand Cherokee WK. Manual — part 523
B1D7F–SEAT FRONT VERTICAL MOTOR CONTROL CIRCUIT PERFORMANCE (CONTINUED)
7.
CHECK THE (P119) DRIVER SEAT FRONT VERTICAL UP DRIVER WIRE FOR AN OPEN
Disconnect the Memory Seat Module C3 connector.
NOTE: Check connectors – Clean and repair as necessary.
Measure the resistance of the (P119) Driver Seat Front Vertical Up
Driver circuit at the Driver Front Vertical Seat Adjuster Motor connector
to the C3 connector.
Is the resistance above 1.0 ohm?
Yes
>> Repair the (P119) Driver Seat Front Vertical Up Driver cir-
cuit for an open.
Perform POWER SEAT SYSTEM VERIFICATION TEST –
VER 1
No
>> Go To 8
8N - 252
POWER SEATS - ELECTRICAL DIAGNOSTICS
WK
B1D7F–SEAT FRONT VERTICAL MOTOR CONTROL CIRCUIT PERFORMANCE (CONTINUED)
8.
CHECK THE (P121) DRIVER SEAT FRONT VERTICAL DOWN DRIVER AN OPEN
Measure the resistance of the (P121) Driver Seat Front Vertical Down
Driver circuit at the Driver Front Vertical Seat Adjuster Motor connector
to the C3 connector.
Is the resistance above 1.0 ohm?
Yes
>> Repair the (P121) Driver Seat Front Vertical Down Driver
circuit for an open.
Perform POWER SEAT SYSTEM VERIFICATION TEST –
VER 1
No
>> Replace the Memory Seat Module.
Perform POWER SEAT SYSTEM VERIFICATION TEST –
VER 1
WK
POWER SEATS - ELECTRICAL DIAGNOSTICS
8N - 253
B1D83–SEAT REAR VERTICAL MOTOR CONTROL CIRCUIT PERFORMANCE
8N - 254
POWER SEATS - ELECTRICAL DIAGNOSTICS
WK
B1D83–SEAT REAR VERTICAL MOTOR CONTROL CIRCUIT PERFORMANCE (CONTINUED)
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 Memory Seat 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
(G402) DRIVER SEAT REAR VERTICAL POSITION SENSE CIRCUIT OPEN
(G492) DRIVER SEAT REAR VERTICAL SENSOR GROUND CIRCUIT OPEN
(P111) DRIVER SEAT REAR VERTICAL UP DRIVER
(P113) DRIVER SEAT REAR VERTICAL DOWN DRIVER
REAR DRIVER VERTICAL SEAT ADJUSTER MOTOR
MEMORY SEAT 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 other DTC(s) first. Refer to the Table of Contents in this Section for a complete list
of symptoms.
No
>> Go To 2
2.
TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
With the scan tool, record and erase DTC’s
Move the Seat Switch in the Rear Vertical position 3 times.
With the scan tool, read DTC’s.
Does the scan tool display B1D83–SEAT REAR VERTICAL 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/sche-
matic as a guide, inspect the wiring and connectors.
Perform POWER SEAT SYSTEM VERIFICATION TEST - VER 1.
WK
POWER SEATS - ELECTRICAL DIAGNOSTICS
8N - 255
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