Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
DTC Descriptor
DTC P0562: System Voltage LowCircuit/System Description
The hybrid powertrain control module (HPCM) continuously monitors the system voltage on the Ignition voltage circuits. The HPCM is located within the drive motor generator power inverter module (PIM) assembly and is not serviced separately. Lower than normal voltage may be inadequate to operate the control module or sensors properly.
Conditions for Running the DTC
Ignition is in RUN/CRANK.
Conditions for Setting the DTC
The HPCM detects system voltage is 10 volts or less for 5 out of 6 seconds.
Action Taken When the DTC Sets
DTC P0562 is a Type C DTC.
Conditions for Clearing the DTC
DTC P0562 is a Type C DTC.
Diagnostic Aids
Observe the driver information center (DIC) messaging that would indicate the electrical system requires service.
Inspect for the following conditions:
| • | Loose or damaged battery terminals. |
| • | Loose or corroded connections at the drive motor generator power inverter module (PIM) assembly. |
| • | Loose or corroded connections at the accessory dc power control module (APM). |
Reference Information
Schematic Reference
Connector End View Reference
Electrical Information Reference
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
Engine ON, measure and record the battery voltage with a DMM. The battery voltage should be between 12.5-14.5 volts.
| ⇒ | If the voltage is not within the specified value, or the Charge Indicator light is ON, go to DC Power Conversion Test. |
Circuit/System Testing
Engine ON, the scan tool Control Module Voltage parameter should display between 12.5-14.5 volts.
| ⇒ | If the voltage is not within the specified value, test the Ignition Voltage circuit for an open, high resistance, or Short to Ground. |
| ⇒ | If the voltage is within the specified range, replace the PIM. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for PIM replacement, programming, and setup.
