Operation CHARM: Car repair manuals for everyone.
Home >> Saab >> 1999 >> 9-3 Convertible (9400) L4-2.0L Turbo (B204) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> Trionic T5 OBD II >> Poor Performance >> Diagnostic Procedures >> Checking the Valve's Control Module Output
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Checking the Valve's Control Module Output




Checking The Valve's Control Module Output












- Turn the ignition switch to the ON position.
- Contact Trionic 5 OBDII.
- Activate:

Boost Pres. Valve
- A loud humming sound should be heard.

Is the function correct?

NO - Rectifying the Lead - I

YES - Changing Components - I
pro multis · About Operation CHARM