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

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Pinpoint Tests - Non OSC Equipped Vehicle




Pinpoint Tests - Non OSC Equipped Vehicle





Anytime an electrical connector or solenoid body is disconnected, inspect the connector for pin condition, corrosion and contamination. Also inspect the connector seal for damage. Clean, repair or install a new connector as required.

Prior to carrying out the pinpoint tests, check the following:

- Transmission fluid level
- Transmission fluid condition (burned, metal particles or discolored)
- Engine cooling system
- Other non-related transmission DTCs