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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Test Notes

NOTE: You should enter this pinpoint test only when directed here from diagnostic routines, or from Pinpoint Test TA.

This pinpoint test is intended to diagnose only the following:
- Harness circuits: ACCS
- Powertrain Control Module (PCM)

DESCRIPTION
ACCS is used as an input to the PCM to determine when the A/C clutch is energized. This information is used primarily for idle control.