Jeep Grand Cherokee WK. Manual — part 521
B1D7B–SEAT HORIZONTAL MOTOR CONTROL CIRCUIT PERFORMANCE (CONTINUED)
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 (Refer to 8 - ELECTRICAL/POWER SEATS -
DIAGNOSIS AND TESTING)
No
>> Go To 7
8N - 244
POWER SEATS - ELECTRICAL DIAGNOSTICS
WK
B1D7B–SEAT HORIZONTAL MOTOR CONTROL CIRCUIT PERFORMANCE (CONTINUED)
5.
CHECK THE (G401) DRIVER SEAT HORIZONTAL POSITION SENSE WIRE FOR AN OPEN
Disconnect the Memory Seat 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 (Refer to 8 - ELECTRICAL/POWER SEATS -
DIAGNOSIS AND TESTING)
No
>> Go To 6
6.
CHECK THE (G491) DRIVER SEAT HORIZONTAL SENSOR GROUND FOR AN OPEN
Measure the resistance of the (G491) Driver Seat Horizontal Sensor
Ground circuit at the Driver Horizontal Seat Adjuster Motor connector
to the C3 connector.
Is the resistance above 1.0 ohm?
Yes
>> Repair the (G491) Driver Seat Horizontal Senor Ground
circuit for an open.
Perform POWER SEAT SYSTEM VERIFICATION TEST –
VER 1 (Refer to 8 - ELECTRICAL/POWER SEATS -
DIAGNOSIS AND TESTING)
No
>> Replace the Memory Seat Module.
Perform POWER SEAT SYSTEM VERIFICATION TEST –
VER 1 (Refer to 8 - ELECTRICAL/POWER SEATS -
DIAGNOSIS AND TESTING)
WK
POWER SEATS - ELECTRICAL DIAGNOSTICS
8N - 245
B1D7B–SEAT HORIZONTAL MOTOR CONTROL CIRCUIT PERFORMANCE (CONTINUED)
7.
CHECK THE (P115) DRIVER SEAT HORIZONTAL FORWARD 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 (P115) Driver Seat Horizontal Forward
Driver circuit at the Driver Horizontal Seat Adjuster Motor connector to
the C3 connector.
Is the resistance above 1.0 ohm?
Yes
>> Repair the (P115) Driver Seat Horizontal Forward Driver
circuit for an open.
Perform POWER SEAT SYSTEM VERIFICATION TEST –
VER 1 (Refer to 8 - ELECTRICAL/POWER SEATS -
DIAGNOSIS AND TESTING)
No
>> Go To 8
8N - 246
POWER SEATS - ELECTRICAL DIAGNOSTICS
WK
B1D7B–SEAT HORIZONTAL MOTOR CONTROL CIRCUIT PERFORMANCE (CONTINUED)
8.
CHECK THE (P117) DRIVER SEAT HORIZONTAL REARWARD DRIVER AN OPEN
Measure the resistance of the (P117) Driver Seat Horizontal Rearward
Driver circuit at the Driver Horizontal Seat Adjuster Motor connector to
the C3 connector.
Is the resistance above 1.0 ohm?
Yes
>> Repair the (P117) Driver Seat Horizontal Rearward Driver
circuit for an open.
Perform POWER SEAT SYSTEM VERIFICATION TEST –
VER 1 (Refer to 8 - ELECTRICAL/POWER SEATS -
DIAGNOSIS AND TESTING)
No
>> Replace the Memory Seat Module.
Perform POWER SEAT SYSTEM VERIFICATION TEST –
VER 1 (Refer to 8 - ELECTRICAL/POWER SEATS -
DIAGNOSIS AND TESTING)
WK
POWER SEATS - ELECTRICAL DIAGNOSTICS
8N - 247
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