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
If it fails: lemon-manuals.org.ua

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Helpful Information

The K7 circuit is spliced and provides 8 volts for the crankshaft position sensor, and the vehicle speed sensor (manual transmission only).

Circuit K4 splices to supply ground for the signals from the following:
- Intake air temperature sensor
- Engine coolant temperature sensor
- Manifold absolute pressure sensor
- Throttle position sensor
- A/C pressure switch
- Crankshaft position sensor
- Vehicle speed sensor
- Heated oxygen sensors