Buick Regal: Description and Operation
READ NEXT:
Cooling Fan Description and Operation
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
Cooling System Description and Operation
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
Firing Order and Cylinder Identification
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
SEE MORE:
Description and Operation
WHEEL DRIVE SHAFTS DESCRIPTION AND OPERATION
Wheel drive shafts are flexible assemblies consisting of an inner joint and
an outer constant velocity joint connected
by an axle shaft. The inner joint is completely flexible, and can plunge in and
out. The outer joint is also flexible, but
cannot plun
DTC P2122, P2123, P2127, P2128, or P2138
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.
DTC Descriptors
DTC P2122
© 2019-2026 Copyright www.buregal6.com
