Buick Encore: Waveforms - Injector Pattern Tutorial
Buick Encore 2012-2019 Service Manual / General Information & Maintenance / Waveforms - Injector Pattern Tutorial
- Purpose of this article
- Is a lab scope necessary?
- The two types of injector drivers
- Interpreting injector waveforms
- Current waveform samples
- Voltage waveform samples
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Purpose of this article
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 articles whe
Is a lab scope necessary?
Use the Right 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
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 articles whe
SEE MORE:
Schematic wiring diagrams
DATA COMMUNICATION WIRING SCHEMATICS (ENCORE)
Power, Ground, and Low Speed GMLAN
Fig. 1: Power, Ground, and Low Speed GMLAN
High Speed GMLAN Bus (1 of 2)
Fig. 2: High Speed GMLAN Bus (1 of 2)
High Speed GMLAN Bus (2 of 2)
Fig. 3: High Speed GMLAN Bus (2 of 2)
High Speed GMLAN Bus 2
Fig. 4: H
Brake rotor/drum balance inspection
Support the vehicle drive axle on a suitable hoist. Refer to Lifting and
Jacking the Vehicle .
Remove the tire and wheel assemblies from the drive axle. Refer to Tire
and Wheel Removal and
Installation .
Reinstall the wheel nuts in order to retain the brake rotors.
Run the vehicle at the c
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