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Porsche
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1990
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944 Turbo L4-2479cc 2.5L SOHC Turbo
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Repair and Diagnosis
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Powertrain Management
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Testing and Inspection
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Initial Inspection and Diagnostic Overview
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Diagnostic Strategies
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Troubleshooting DME
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Test Points
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Test Point 15 - Trigger Signal
Test Point 15 - Trigger Signal
TEST POINT 15 - DME 944 Turbo
Trigger Signal
Connect oscilloscope on disconnected DME/KLR
control unit
plug term. 24 positive wire and negative wire on ground.
Start engine.
This signal should appear on the screen.