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

General

Many conditions that affect radio operation may be corrected without removing the unit from the vehicle. Verify the condition and follow the diagnostic procedure outlined in this section to isolate and correct the condition. If the minor repairs are not effective, the radio should be removed from the vehicle and repaired by an authorized radio repair center. Also, before attempting to diagnose radio problems with the ignition OFF, be sure that the battery is fully charged. Batteries supplying less than system voltage will cause erroneous diagnosis of AM, FM, cassette and compact disc problems.