Dodge Caliber. Manual — part 294
HEATED SEATS - ELECTRICAL DIAGNOSTICS
DIAGNOSIS AND TESTING
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HEATED SEATS - ELECTRICAL DIAGNOSTICS
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B1092-FRONT LEFT SEAT HEATER CONTROL CIRCUIT LOW
For a complete wiring diagram Refer to Section 8W.
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HEATED SEATS - ELECTRICAL DIAGNOSTICS
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•
When Monitored:
Ignition on, during the heated seat operation.
•
Set Condition:
This code is set immediately after the Heated Seat Module (HSM) detects the control circuit shorted to ground.
Possible Causes
(P187) LEFT SEAT HEATER B(+) DRIVER SHORTED TO GROUND
SEAT CUSHION HEATER ELEMENT SHORTED
SEAT BACK HEATER ELEMENT SHORTED
HEATED SEAT MODULE
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/sche-
matic as a guide, inspect the wiring and connectors.
Perform BODY VERIFICATION TEST – VER 1. (Refer to BODY VERIFICATION TEST – VER 1).
2.
DISCONNECT LEFT SEAT CUSHION HEATER 2-WAY CONNECTOR AND READ DTC’S
Disconnect the Left Seat Cushion Heater 2–way 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 5
No
>> Go To 3
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HEATED SEATS - ELECTRICAL DIAGNOSTICS
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3.
CHECK THE (P187) LEFT SEAT HEATER B(+) DRIVER FOR A SHORT TO GROUND AT THE SEAT
Measure between the (P187) Left Seat Heater B(+) Driver circuit at the
Left Seat Heater connector (component side) and the seat frame for a
short to ground.
Is the resistance below 1000 ohms?
No
>> Go To 4
Yes
>> Repair/replace the pigtail/heating element as necessary for
a short to ground condition.
Perform BODY VERIFICATION TEST – VER 1 (Refer to
BODY VERIFICATION TEST – VER 1).
4.
CHECK THE LEFT HEATER ELEMENT SEAT CUSHION AND SEAT BACK RESISTANCE
Gain access to the seat cushion and seat back heater connectors.
Check the resistance of each of the heater elements by measuring
between the (P187) Left Seat Heater B(+) Driver and the Ground circuit
at the seat cushion and seat back heater connectors.
For the seat cushion element, the resistance value is 3 to 5.5 ohms.
For the seat back element, the resistance value is 4 to 6 ohms.
Is the resistance correct for each heater element?
Yes
>> Using the wiring diagram/schematic as a guide, inspect the
wiring and connectors for an intermittent short to ground.
No
>> Replace the heater element as necessary.
Perform BODY VERIFICATION TEST – VER 1. (Refer to
BODY VERIFICATION TEST – VER 1).
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HEATED SEATS - ELECTRICAL DIAGNOSTICS
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