GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2009 🢒 Solstice 🢒 Safety and Security 🢒 Supplemental Inflatable Restraints 🢒 DTC P0560

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 P0560: System Voltage

Diagnostic Fault Information

Circuit

Short to Ground

Open/High Resistance

Short to Voltage

Signal Performance

IGN

P0560

P0560

--

--

Ground

--

P0560

--

--

Circuit/System Description

The engine control module (ECM) monitors the system voltage to ensure that the voltage stays within the proper range. Damage to components and incorrect data may occur when the voltage is out of range.

Conditions for Running the DTC
    • The vehicle speed is below 40 km/h (25 mph).
    • The system voltage is below 11 volts or above 16 volts.
    • Engine speed is above 1,500 RPM.

Conditions for Setting the DTC

The ECM detects a system voltage out of range for 2 seconds.

Action Taken When the DTC Sets

The instrument panel cluster (IPC) illuminates the charge indicator.

Conditions for Clearing the DTC

DTC P0560 is a C type DTC.

Diagnostic Aids
    •  Possible causes of this DTC are overcharging with a battery charger and jump starting.
    •  A high or low voltage DTC in multiple modules indicates a concern in the charging system.

Reference Information

Schematic Reference

    •  Engine Controls Schematics for the 2.0L engine
    •  Engine Controls Schematics for the 2.4L engine

Connector End View Reference

Component Connector End Views

Description and Operation

Charging System Description and Operation

Electrical Information Reference

    •  Circuit Testing
    •  Connector Repairs
    •  Testing for Intermittent Conditions and Poor Connections
    •  Wiring Repairs

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification
  1. Engine running measure and record the voltage at the battery terminals. Verify that the battery voltage is 12.6-15.5 volts.
    2. ⇒If the battery voltage is not within the specified range, refer to Charging System Test.
  2. Observe the scan tool ECM Ignition 1 Signal parameter. The reading should be between 12.6 and 15.5   volts.

Circuit/System Testing
  1. Ignition OFF, disconnect the harness connectors at the ECM.
  2. Ignition OFF and scan tool disconnected, open and close the driver door, and wait 1  minute. Test for less than 5   ohms between the ground circuit terminals listed below and ground.
    3. • 2.0L Terminal  1 X2
    • 2.0L Terminal  2 X2
    • 2.0L Terminal  4 X2
    • 2.4L Terminal  73 X2
    ⇒If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify that a test lamp illuminates between the B+ / ignition circuit terminals listed below and ground.
    4. • 2.0L IGN Terminal  3 X2
    • 2.0L IGN Terminal  5 X2
    • 2.0L IGN Terminal  6 X2
    • 2.0L IGN Terminal 54 X2
    • 2.0L B+ Terminal 56 X2
    • 2.4L IGN Terminal  3 X1
    • 2.4L IGN Terminal  73 X1
    • 2.4L B+ Terminal  20 X1
    ⇒If the test lamp did not illuminate , test the B+ / Ignition circuits for a short to ground or an open/high resistance.
  4. If all the circuits test normal, replace the ECM.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for ECM replacement, setup, and programming