Operation CHARM: Car repair manuals for everyone.

Boost Pressure Output

Boost pressure indicator, checking





- with control unit connector attached to control unit, connect voltmeter to terminal 17 wire of control unit and ground
- run engine at idle
^ specification: 0.25-2.5V


If voltage reading NOT OK
- replace control unit

If voltage reading OK, but boost pressure NOT indicated on instrument cluster
- check wiring between terminal 17 of control unit and instrument cluster indicator according to current flow diagram
- repair as necessary