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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Helpful Information

Circuit K7 splices to supply 5 Volts to the manifold absolute pressure sensor, battery temperature sensor, camshaft position sensor, and crankshaft position sensor.
On vehicles equipped automatic transmission, circuit K22 splices to the transmission control module.
Circuit K167 splices to supply ground for the signals from the following:
- Battery temperature sensor
- Camshaft position sensor
- Crankshaft position sensor
- Engine coolant temperature sensor
- Engine oil pressure sensor
- [1][2]Fuel level sensor
- Heated oxygen sensor
- Intake air temperature sensor
- Manifold absolute pressure sensor
- Throttle position sensor
- Vehicle speed control module
- Vehicle speed sensor