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GMC Truck
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1999
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S15/T15 Jimmy 2WD V6-4.3L VIN W
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Testing and Inspection
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Scan Tool Testing and Procedures
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Scan Tool Data, Normal Values and Definitions
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Scan Tool Data Definitions - Powertrain Systems
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Ignition 1
Ignition 1
Range -
(0.0-25.5 Volts)
The Ignition 1 parameter indicates the voltage level on the Ignition input to the
VCM
. The normal Ignition 1 voltage is approximately
13.8 volts
, but may vary between
11-16 volts
.