B1092-FRONT LEFT SEAT HEATER CONTROL CIRCUIT LOW

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) 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

1.VERIFY THAT DTC B1092-FRONT LEFT SEAT HEATER CONTROL CIRCUIT LOW IS ACTIVE

Does the DTC B1092 FRONT LEFT SEAT HEATER CONTROL CIRCUIT LOW reset?

Yes

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. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)

2.DISCONNECT LEFT SEAT INLINE CONNECTOR AND READ DTC'S

NOTE: Check connectors - Clean and repair as necessary.

Does the scan tool display the same DTC?

Yes

3.CHECK THE (P187) LEFT SEAT HEATER B(+) DRIVER FOR A SHORT TO GROUND

Is the resistance below 1k ohms?

Yes

Repair/replace the pigtail/heating element as necessary for a short to ground condition.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)

4.CHECK THE LEFT CUSHION PAD HEATER RESISTANCE

Was the resistance below 3.5 ohms?

Yes

Replace the heater element as necessary.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)

5.CHECK THE LEFT SEAT BACK HEATER RESISTANCE

NOTE: Check connectors - Clean and repair as necessary.

Is the resistance below 4.0 ohms?

Yes

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 (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)

6.Check the Left Seat Heater B(+) Driver circuit for a short to ground

NOTE: Check connectors - Clean and repair as necessary.

Is the resistance below 5.0 ohms?

Yes

Repair the Left Seat Heater B(+) Driver circuit for a short to ground.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)

Replace the Heated Seat Module.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)