System Overview
The engine cooling fan system consists of 2 electric cooling fans and 3 fan
relays. The cooling fan relays
are arranged in a series/parallel (S/P) configuration. This allows the engin
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
NOTE: This information is intended as a quick reference for firing
order and
cylinder identification only. The information provided covers many
vehicles and may include some information that does not
System Component Description
B19B - B19B Brake Booster Vacuum Sensor
K17 - K17 Electronic Brake Control Module
M9 - M9 Brake Booster Pump Motor
The brake booster vacuum assist system consists of the following:
Brake Booster Auxiliary Vacuum Pump (electric or mechanical)
The brake booster vacuum pu
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 provide an overview of each diagnostic
category.
Symptoms Descripti