Operation CHARM: Car repair manuals for everyone.
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)

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STG - Testing Notes and Schematics

Pinpoint Test STG Schematic (Part 1):




Pinpoint Test STG Schematic (Part 2):






Enter this Pinpoint Test only when directed here by Quick Test steps 9 or 11, or by a test procedure.

This test is only intended to diagnose the following:

- ACS (A/C ON-OFF switch)
- BPS (boost pressure switch)
- BLMT (blower motor control switch)
- CCPS (clutch cycling pressure switch)
- CPP (clutch pedal position switch)
- FAN (cooling fan switch)
- HPS (high pressure switch)
- PNP (park/neutral position switch)
- PSP (power steering pressure switch)
- DEF (rear window defroster switch)
- WOT (wide open throttle switch)