oldsmobile Workshop Repair Guides

Oldsmobile Workshop Service and Repair Manuals

Initial Inspection and Diagnostic Overview|Page 5519 > < Diagram Information and Instructions|Page 5516
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Vehicle Speed Sensor: Initial Inspection and Diagnostic Overview

PERFORM BEFORE BEGINNING SYSTEM DIAGNOSIS:

1. Before component replacement, check that system connections are clean and tight.
^

Check for a broken (or partially broken) wire inside of the insulation which could cause system failure but prove "GOOD" in a continuity/voltage
check with a system disconnected. These circuits may be intermittent or resistive when loaded, and if possible, should be checked by monitoring
for a voltage drop with the system operational (under load).

^

Check for proper installation of aftermarket electronic equipment which may affect the integrity of other systems. (refer to General
Troubleshooting Procedures.
)  See: Diagrams/Diagnostic Aids

Initial Inspection and Diagnostic Overview|Page 5519 > < Diagram Information and Instructions|Page 5516