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
Why DTCS Set
Diagnostic Trouble Codes
(DTCs), when set, indicate that the
PCM has detected a malfunction in a particular circuit or system. The PCM is programmed with routines or checks that it follows only under prescribed conditions (called Test Conditions). When these conditions exist, the PCM checks certain circuits or systems for a malfunction. These checks are called failure conditions. When the failure conditions are true, a DTC is set. Some DTC(s) alert the driver through the SERVICE ENGINE SOON
Malfunction Indicator Lamp (MIL) or a message. Other DTC(s) don't trigger a driver warning. Refer to the DTC TYPE TABLE for a complete list of PCM DTC(s) and what driver alerts they trigger. The PCM also saves data and input parameters when most DTC(s) are set.