B1D83–SEAT REAR VERTICAL MOTOR CONTROL CIRCUIT PERFORMANCE





For a complete wiring diagram Refer to Section 8W.


  • When Monitored:

    Whenever the seat motor is activated.

  • Set Condition:

    If the Memory Seat Module does not detect the rotation of the seat motor this DTC will set. This DTC will only set when the seat switch is moved in the same direction three consecutive times.


Possible Causes
  
SEAT POSITION SENSOR CIRCUIT DIAGNOSTIC TROUBLE CODES
  
(G402) DRIVER SEAT REAR VERTICAL POSITION SENSE CIRCUIT OPEN
  
(G492) DRIVER SEAT REAR VERTICAL SENSOR GROUND CIRCUIT OPEN
  
(P111) DRIVER SEAT REAR VERTICAL UP DRIVER
  
(P113) DRIVER SEAT REAR VERTICAL DOWN DRIVER
  
REAR DRIVER VERTICAL SEAT ADJUSTER MOTOR
  
MEMORY SEAT MODULE
  



Diagnostic Test

1.CHECK FOR RELATED DIAGNOSTIC TROUBLE CODES




Does the scan tool display any seat position sensor DTC's?

Yes
  • Diagnose and repair other DTC(s) first. Refer to the Table of Contents in this Section for a complete list of symptoms.


No
  • Go To 2

2.TEST FOR INTERMITTENT CONDITION






Does the scan tool display B1D83–SEAT REAR VERTICAL MOTOR CONTROL CIRCUIT PERFORMANCE?

Yes
  • Go To 3


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 POWER SEAT SYSTEM VERIFICATION TEST - VER 1.

3.CHECK THE (G402) DRIVER SEAT REAR VERTICAL POSITION SENSE VOLTAGE




NOTE: Check connectors – Clean and repair as necessary.





Does the test light illuminate for approximately two seconds then turn off with the seat switch engaged?

Yes
  • Go To 4


No
  • Go To 5

4.CHECK THE DRIVER SEAT REAR VERTICAL UP/DOWN DRIVER VOLTAGE






Does the test light illuminate with the seat switch engaged?

Yes
  • Replace the Rear Driver Vertical Seat Adjuster motor assembly.
  • Perform POWER SEAT SYSTEM VERIFICATION TEST – VER 1


No
  • Go To 7

5.CHECK THE (G402) DRIVER SEAT REAR VERTICAL POSITION SENSE WIRE FOR AN OPEN




NOTE: Check connectors – Clean and repair as necessary.




Is the resistance above 1.0 ohm?

Yes
  • Repair the (G402) Driver Seat Rear Vertical Position Sense circuit for an open.
  • Perform POWER SEAT SYSTEM VERIFICATION TEST – VER 1


No
  • Go To 6

6.CHECK THE (G492) DRIVER SEAT REAR VERTICAL SENSOR GROUND FOR AN OPEN





Is the resistance above 1.0 ohm?

Yes
  • Repair the (G492) Driver Seat Rear Vertical Sensor Ground circuit for an open.
  • Perform MEMORY SYSTEM VERIFICATION TEST – VER 1


No
  • Replace the Memory Seat Module.
  • Perform POWER SEAT SYSTEM VERIFICATION TEST – VER 1

7.CHECK THE (P111) DRIVER SEAT REAR VERTICAL UP DRIVER WIRE FOR AN OPEN




NOTE: Check connectors – Clean and repair as necessary.




Is the resistance above 1.0 ohm?

Yes
  • Repair the (P111) Driver Seat Rear Vertical Up Driver circuit for an open.
  • Perform POWER SEAT SYSTEM VERIFICATION TEST – VER 1


No
  • Go To 8

8.CHECK THE (P113) DRIVER SEAT REAR VERTICAL DOWN DRIVER FOR AN OPEN





Is the resistance above 1.0 ohm?

Yes
  • Repair the (P113) Driver Seat Rear Vertical Down Driver circuit for an open.
  • Perform POWER SEAT SYSTEM VERIFICATION TEST – VER 1


No
  • Replace the Memory Seat Module.
  • Perform POWER SEAT SYSTEM VERIFICATION TEST – VER 1