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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Test Notes

You should enter this pinpoint test only when directed here from the symptom flow charts.

This pinpoint test is intended to diagnose only the following:
- harness circuits: Speed Control Command Switch (SCCS)
- speed control switch
- Powertrain Control Module (PCM)


DESCRIPTION
The speed control function is integrated in the PCM. The speed control command switches are momentary switches which are located on the face of the steering wheel. They consist of one ON-OFF toggle switch and one three-position SET/ACCEL-COAST-RESUME switch. These switches, when depressed, select one of several resistance values to the PCM to select speed control functions.