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 logical successor to CHARM, I recommend you try it!

Link: lemon-manuals.la

Test Notes

NOTE: Enter this pinpoint test only when directed here from the Symptom Charts, after thoroughly diagnosing the tachometer and tachometer wiring harness.

This pinpoint test is intended to diagnose the following:
- Powertrain control module