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

Battery Message Diagnosis

The following messages turn on when abnormal system voltages are detected by the PCM or IPC.
^ BATTERY VOLTS LOW,
^ BATTERY VOLTS HIGH
^ BATTERY NO CHARGE
^ SERVICE ELECTRICAL SYSTEM
Refer to DIAGNOSTIC CODES, for code and message descriptions. A detailed description of each code and message may be found in Instrument Panel, Gauges and Warning Indicators for IPC codes and Engine Controls for Powertrain Control Module (PCM) codes.