Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diagnostic Procedure Instructions provides an overview of each
diagnostic category.
DTC Descriptors
D
Lumbar Support Components
The power seat lumbar support systems each consist of the following
components:
Seat lumbar support switch
Lumbar support motor
The seat lumbar support switch provides both power and ground to the lumbar
support motor. The motor
contains an electronic circuit breaker