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)

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Pinpoint Test 14: Radio Interference

PINPOINT TEST 14: RADIO INTERFERENCE - HYBRID

Normal Operation

With the engine running and the audio unit on (the audio unit MUST be OEM), there should be minimal interference audible from the speakers (compare to a similar vehicle).

Possible Causes
- Audio unit
- Generator (part of the electronically-controlled continuously variable transmission [ECVT])
- DC/DC converter

Diagnostic Procedure