The engine cooling fan system is composed of one cooling fan, a series of 5
relays, the engine control module
(ECM), and the associated wiring. The cooling fan assembly includes two
resistors. This
Engine Coolant Indicators
The instrument panel cluster (IPC) shows the engine temperature on the
temperature gauge. The value is
sent on the data communication line from engine control module (EC
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