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

Tester Jacks

1. VPWR Pin Jacks (red): VPWR test points for solenoid circuits.
2. Solenoid (MCCC, EPC) Signal Line Pin Jacks (black): Signal line test points for solenoid circuits.

NOTE: The tester overlay is labeled for the MCCC solenoid. This is used to test the Torque Converter Clutch (TCC) solenoid.

3. BAT + (red) and BAT - (black) Pin Jacks: Battery reference points when measuring circuits for shorts.
4. TOT Pin Jacks: Test points for Transmission Fluid Temperature sensor (TFT) sensor.
5. OSS Pin Jacks: Test points for Output Speed Shaft sensor (OSS).