P0562

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Steps 4 - 7:

DTC P0562 System Voltage Low




Circuit Description
The powertrain control module (PCM) monitors the system voltage on the ignition feed terminal to the PCM. A system voltage Diagnostic Trouble Code will set whenever the voltage is below a calibrated value. DTC P0562 is a type D code.

Conditions for Setting the DTC
- Ignition ON.
- System voltage is below 11.5 volts for 4 minutes.

Action Taken When the DTC Sets
- The PCM will not illuminate the malfunction indicator lamp (MIL).
- The PCM will store as Failure Records conditions which were present when the Diagnostic Trouble Code was set. This information will not be stored as Freeze Frame data.

Conditions for Clearing the DTC
- A history Diagnostic Trouble Code P0562 will clear after 40 consecutive warm-up cycles have occurred without a fault.
- Diagnostic Trouble Code P0562 can be cleared by using the Scan Tool's "Clear Info" function.

Diagnostic Aids
- If the Diagnostic Trouble Code sets when an accessory is operated, check for a poor connection or excessive current draw.
- Check for an open circuit in the PCM main relay's control (ground) circuit.
- Check for open circuits or shorts to ground on the PCM's battery or ignition inputs. Check for a faulty PCM main relay.