Diagnostic Code Index
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B1327 | Device Power 1 Circuit Low |
| DTC B1328 | Device Power 1 Circuit High |
| DTC B1516 | Battery Current Sensor Performance |
| DTC P0560 | System Voltage |
| DTC P0562 | System Voltage Low |
| DTC P0563 | System Voltage High |
| DTC P0615 | Starter Relay Control Circuit |
| DTC P0621 | Generator L-Terminal Circuit |
| DTC P0622 | The engine control module (ECM) uses the generator turn-on signal circuit to control the voltage output of the generator. When a different voltage is desired, the ECM will change the pulse width modulation (PWM) signal to the voltage regulator via the generator turn-on signal circuit. This causes the voltage regulator to the voltage output of the generator. The ECM has fault detection circuitry which monitors the state of the generator turn-on signal circuit. If the fault detection circuit senses a voltage other than what is expected, this DTC will set. The voltage regulator also contains fault detection circuitry. If the regulator detects a problem, the regulator will ground the generator turn-on signal circuit, pulling the voltage low. This also causes the ECM to set the DTC. |
| DTC P1668 | Generator L - Terminal Control Circuit |