Honda HR-V: Is a Lab Scope Necessary?
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INTRODUCTION
You probably have several tools at your disposal to diagnose injector
circuits. But you might have questioned
"Is a lab scope necessary to do a thorough job, or will a set of noid lights
A DVOM is typically used to check injector resistance and available voltage
at the injector. Some techs also use
it check injector on-time either with a built-in feature or by using the
dwell/duty f
NOTE: This is GENERAL information. This article is not intended to be
specific to any
unique situation or individual vehicle configuration. For model-specific
information see appropriate a rtic
SEE MORE:
COOLING FAN CONTROL SYSTEM DESCRIPTION - OVERVIEW
Overview
Receiving various signals, such as coolant temperature signals and
refrigerant compression signals, from
sensors, the PCM performs the fan control switching the fan speed (HI/LO) as
needed. This control efficiently
operates the radiator fa
NOTE:
Check the vehicle 12 volt battery condition first.
You must be able to duplicate the customer's concern to successfully
diagnose the problem. If you cannot duplicate the issue, have the customer
demonstrate it.
Check the connectors for poor connections or loose terminals.
1. HFL switc