Dodge Durango (HB). Manual — part 270
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
(P187) DRIVER 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
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.
Diagnostic Test
1.
VERIFY THAT DTC B1092-FRONT LEFT 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 B1092 FRONT LEFT 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/schematic
as a guide, inspect the wiring and connectors.
Perform BODY VERIFICATION TEST – VER 1.
HB
HEATED SEATS - ELECTRICAL DIAGNOSTICS
8G - 27
B1092-FRONT LEFT SEAT HEATER CONTROL CIRCUIT LOW —
(CONTINUED)
2.
DISCONNECT DRIVER CUSHION PAD HEATER 2-WAY
CONNECTOR AND READ DTC’S
Disconnect the Driver Cushion Pad Heater 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 7
No
>> Go To 3
3.
CHECK THE DRIVER SEAT BACK PAD HEATER RESISTANCE
Disconnect the Driver Seat Back Pad Heater connector.
Note: Check connectors - Clean and repair as necessary.
Check the resistance of the seat back heater element by measuring
between the (P187) Driver Seat Heater B(+) Driver and the Ground
circuit at the driver seat back pad connector.
Is the resistance below 4.0 ohms?
No
>> Go To 4
Yes
>> Replace the seat back heater element as necessary.
Perform BODY VERIFICATION TEST – VER 1
4.
CHECK THE DRIVER SEAT BACK PAD HEATER FOR A
SHORT TO GROUND
Measure between the (P187) Driver Seat Heater B(+) Driver circuit at
the Driver Seat Back Pad Heater connector and the seat frame for a
short to ground.
Is the resistance below 1000 ohms?
Yes
>> Repair the pigtail harness for a short to ground condition
or replace the seat back heater element as necessary.
Perform BODY VERIFICATION TEST – VER 1.
No
>> Go To 5
8G - 28
HEATED SEATS - ELECTRICAL DIAGNOSTICS
HB
B1092-FRONT LEFT SEAT HEATER CONTROL CIRCUIT LOW —
(CONTINUED)
5.
CHECK THE DRIVER CUSHION PAD HEATER RESISTANCE
Check the resistance of the cushion heater element by measuring
between the (P187) Driver Seat Heater B(+) Driver and the Ground
circuit at the driver cushion pad connector.
Was the resistance below 3.5 ohms?
No
>> Go To 6
Yes
>> Replace the heater element as necessary.
Perform BODY VERIFICATION TEST – VER 1.
6.
CHECK THE DRIVER CUSHION PAD HEATER FOR A SHORT
TO GROUND
Measure between the (P187) Driver Seat Heater B(+) Driver circuit at
the Driver Cushion Pad Heater connector and the seat frame for a
short to ground.
Is the resistance below 1000 ohms?
Yes
>> Repair the pigtail harness or replace the 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.
7.
Check the (P187) Driver Seat Heater B(+) Driver circuit for a
short to ground
Disconnect the Heat Seat Module connector.
Note: Check connectors - Clean and repair as necessary.
Measure the (P187) Driver Seat Heater B(+) Driver circuit to ground at
the HSM connector.
Is the resistance below 5.0 ohms?
Yes
>> Repair the (P187) Driver 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.
HB
HEATED SEATS - ELECTRICAL DIAGNOSTICS
8G - 29
B1092-FRONT LEFT SEAT HEATER CONTROL CIRCUIT LOW —
(CONTINUED)
8G - 30
HEATED SEATS - ELECTRICAL DIAGNOSTICS
HB
B1096-FRONT RIGHT SEAT HEATER CONTROL CIRCUIT LOW
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст