Diagnostic Code Index
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B1325 | Device Power 1 Circuit Voltage |
| DTC B1327 | Device Power 1 Circuit Low |
| DTC B1328 | Device Power 1 Circuit High |
| DTC P0562 | System Voltage Low |
| DTC P0563 | System Voltage High |
| DTC P0615 | Starter Relay Control Circuit |
| DTC P0621 | On vehicles equipped with a sense circuit to the voltage regulator, this circuit is used as a reference to control system voltage. The sense circuit must operating correctly for the charging system to operate properly. All the circuits at the generator should be tested for proper operation before replacing components. Refer to Schematic and Routing Diagrams to confirm if the vehicle being serviced uses the sense circuit as part of the charging system. |
| DTC P0622 | Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections . |