5000CS Turbo L5-2226cc 2.22L SOHC Turbo (MC) (1987)
Engine Control Module: Component Tests and General Diagnostics
Boost Pressure Output
Boost pressure indicator, checking
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with control unit connector attached to control unit, connect voltmeter to terminal 17 wire of control unit and ground
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run engine at idle
^
specification: 0.25-2.5V
If voltage reading NOT OK
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replace control unit
If voltage reading OK, but boost pressure NOT indicated on instrument cluster
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check wiring between terminal 17 of control unit and instrument cluster indicator according to current flow diagram
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repair as necessary