Jeep Grand Cherokee WK. Manual — part 380
B1096-FRONT RIGHT SEAT HEATER CONTROL CIRCUIT LOW (CONTINUED)
For the Heated Seat System circuit diagram (Refer to 8 - ELECTRICAL/HEATED SEATS - SCHEMATICS AND DIA-
GRAMS)
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:Ignition on, during the heated seat operation.
•
Set Condition:This code is set immediately after the Heated Seat Module detects the control circuit shorted to
ground.
Possible Causes
(P188) LEFT SEAT HEATER B(+) DRIVER SHORTED TO GROUND
SEAT HEATER ELEMENT PIGTAIL HARNESS SHORTED
SEAT CUSHION HEATER ELEMENT SHORTED
SEAT BACK HEATER ELEMENT SHORTED
HEATED SEAT MODULE
Diagnostic Test
1.
VERIFY THAT DTC B1096-FRONT RIGHT SEAT HEATER CONTROL CIRCUIT LOW IS ACTIVE
With the scan tool, record and erase DTC’s
Operate the Heated Seat Switch in both positions several times.
With the scan tool, read DTC’s.
Does the DTC B1096 FRONT RIGHT SEAT HEATER CONTROL CIRCUIT LOW reset?
Yes
>> Go To 2
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 BODY VERIFICATION TEST – VER 1.
2.
DISCONNECT RIGHT SEAT INLINE CONNECTOR AND READ DTC’S
Disconnect the right seat C305 inline connector.
NOTE: Check connectors - Clean and repair as necessary.
With the scan tool, erase HSM DTC’s
Operate the Heated Seat Switch in both positions several times.
With the scan tool, read DTC’s.
Does the scan tool display the same DTC?
Yes
>> Go To 6
No
>> Go To 3
8G - 26
HEATED SEATS - ELECTRICAL DIAGNOSTICS
WK
B1096-FRONT RIGHT SEAT HEATER CONTROL CIRCUIT LOW (CONTINUED)
3.
CHECK THE (P188) RIGHT SEAT HEATER B(+) DRIVER FOR A SHORT TO GROUND
Measure between the (P188) Right Seat Heater B(+) Driver circuit at
the seat inline connector (seat side) and the seat frame for a short to
ground.
Is the resistance below 1000 ohms?
Yes
>> Repair/replace the pigtail/heating element as necessary for
a short to ground condition.
Perform BODY VERIFICATION TEST – VER 1.
No
>> Go To 4
4.
CHECK THE RIGHT CUSHION PAD HEATER RESISTANCE
Disconnect the Right Cushion Pad Heater 2 – way connector.
Check the resistance of the cushion heater element by measuring
between the Right Seat Heater B(+) Driver and the Ground circuit at
the right cushion pad connector (component side).
Was the resistance below 3.5 ohms?
Yes
>> Replace the heater element as necessary.
Perform BODY VERIFICATION TEST – VER 1.
No
>> Go To 5
5.
CHECK THE RIGHT SEAT BACK HEATER RESISTANCE
Disconnect the RIght Seat Back Heater 2 – way connector.
NOTE: Check connectors - Clean and repair as necessary.
Check the resistance of the seat back heater element by measuring
between the Right Seat Heater B(+) Driver and the Ground circuit at
the right seat back connector (component side).
Is the resistance below 4.0 ohms?
Yes
>> Replace the seat back heater element as necessary.
Perform BODY VERIFICATION TEST – VER 1
No
>> Using the wiring diagram/schematic as a guide, inspect
the wiring and connectors for an intermittent short to
ground.
Perform BODY VERIFICATION TEST – VER 1
WK
HEATED SEATS - ELECTRICAL DIAGNOSTICS
8G - 27
B1096-FRONT RIGHT SEAT HEATER CONTROL CIRCUIT LOW (CONTINUED)
6.
Check the Right Seat Heater B(+) Driver circuit for a short to ground
Disconnect the Heated Seat Module connector.
NOTE: Check connectors - Clean and repair as necessary.
Measure the Right Seat Heater B(+) Driver circuit to ground at the
HSM connector.
Is the resistance below 5.0 ohms?
Yes
>> Repair the Right Seat Heater B(+) Driver circuit for a short
to ground.
Perform BODY VERIFICATION TEST – VER 1.
No
>> Replace the Heated Seat Module.
Perform BODY VERIFICATION TEST – VER 1.
8G - 28
HEATED SEATS - ELECTRICAL DIAGNOSTICS
WK
B1098-FRONT RIGHT SEAT HEATER CONTROL CIRCUIT OPEN
WK
HEATED SEATS - ELECTRICAL DIAGNOSTICS
8G - 29
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