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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Transmission Control Systems: Testing and Inspection

When the automatic transaxle control unit senses an abnormality in the input or output systems, the D4 indicator light in the gauge assembly will blink at equal intervals.
When the D4 indicator light is blinking, stop engine, then jumper two terminals of Service Check Connector (located behind the center console). The D4 indicator will then blink in different length pulses.