Honda HR-V: Is a Lab Scope Necessary?
Honda HR-V (2015-2021) Service Manual / General Information / Waveforms - Injector Pattern Tutorial / Is a Lab Scope Necessary?
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Introduction, Overview of Noid Light
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
Overview of DVOM
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
The Two Types of Injector Drivers
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:
DTC Troubleshooting 97-11: Automatic Brake Hold Switch Signal Circuit Open
NOTE: Before you troubleshoot, review the general troubleshooting
information.
1. Problem verification:
Turn the vehicle to the ON mode.
Clear the DTC with the HDS.
Turn the vehicle to the OFF (LOCK) mode, then to the ON mode.
Check for DTCs with the HDS.
Is DTC 97-11 indicated?
YES
The fai
EGR Function Testing
TEST 1
1980-87 (PORTED EGR VALVE)
Check vacuum hoses for correct routing. Disconnect vacuum hose from EGR
valve. Run engine to operating
temperature. Apply 6 in. Hg to EGR valve. Ensure engine runs roughly or dies.
Reconnect vacuum hose.
VACUUM CONTROL
EGR valve is controlled by a combination of e
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