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)

Or, hide this message: temporarily or permanently

SCG - Test Notes

NOTE: You should enter this Pinpoint Test only when a diagnostic trouble code 25, 26, 28, 29, 34, 41, or 46 is received in Erase and Retest or Key On Engine Running (KOER) test, or when a Component Verification Test directs you here.

REMEMBER: This Pinpoint Test is intended to diagnose only the following:

- Circuits: Canister Purge (CANP), EGR Control (EGRC), EGR Vent (EGRV), EGR Vacuum Regulator (EVR), Fuel Pressure Regulator Control (FPRC), High Speed Inlet Air Control (HSIA), Idle Air Control (IAC), Injectors (INJ), Variable Resonance Induction System Solenoid #1 (VRIS1), Variable Resonance Induction System Solenoid #2 (VRIS2)