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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Body Controller

BODY CONTROLLER

There is only one Body Controller available in 1989 regardless of the complexity of the system. The body controller receives information from the Engine Node regarding brake fluid level, brake pad condition, engine coolant level, and engine oil level. Exterior lamps are monitored by the Lamp Outage Module. Should a problem occur with a head lamp, taillamp, or brake lamp, the lamp outage module senses the discrepancy and will report the condition to the body controller. The body controller also provides power or ground for a wide variety of systems and uses the voltage drop to monitor the system. The body controller is one of the two modules which has the capability of providing Bias on the C2D bus.

In 1989 C-body vehicles the body controller is used to store odometer information displayed in the instrument cluster.

When replacement of the body controller is required, contact the local Service Center to obtain and exchange body controller.