Cruze

DTC P0562 or P0563

The transmission control module (TCM) continuously monitors the system voltage on the Ignition 1 voltage circuits. Lower than normal voltage may be inadequate to operate the transmission control solenoids properly. Improper solenoid operation may cause erratic transmission operation, which may result in internal damage. These DTCs detect high or low TCM voltage for an extended period.

P0562

P0563

The ignition voltage was greater than 6.0 volts, and has not dropped below 2.0 volts.

P0562

The TCM detects system voltage is 11 volts or less for 4 seconds in a period of 12 seconds.

P0563

The TCM detects system voltage is 18 volts or greater for 10 seconds in a period of 12 seconds.

DTCs P0562 and P0563 are Type C DTCs.

DTCs P0562 and P0563 are Type C DTCs.

Schematic Reference

Automatic Transmission Controls Schematics

Connector End View Reference

Description and Operation

Electrical Information Reference

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References for scan tool information

Special Tools

DT-48616-10 Adapter Harness

For equivalent regional tools, refer to Special Tools .

1. Engine running, accessories OFF, measure and record the battery voltage at the battery terminals with a DMM. The voltage should be between 12.6-15.0 volts.

⇒	If not within the specified range, or the charge indicator light is ON, refer to Charging System Test .

2. Observe the scan tool TCM Ignition Voltage parameter. The reading should be between 12.6-15.0 volts.
3. After performing the above steps, verify that the DTC does not reset by operating the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions you observe from the Freeze Frame/Failure Records data. If the vehicle passes the Circuit/System Verification procedure, then STOP. Do not perform the Circuit/System Testing or Component Testing as this may result in an unnecessary part replacement. Refer to Testing for Intermittent Conditions and Poor Connections .

Note: You must perform the Circuit/System Verification first.

1. Ignition OFF, disconnect the 14-way harness connector at the transmission.
2. Connect the DT-48616-10 harness to the 14-way transmission harness connector.
3. Test for less than 5 ohms between the ground circuit terminal 2 and ground.

⇒	If greater than the specified range, test the ground circuit for an open/high resistance.

4. Ignition ON, verify that a test lamp illuminates between the B+ terminal and ground, and the ignition circuit terminals listed below and ground.

•	Terminal 1

•	Terminal 12

•	Terminal 13

⇒	If the test lamp does not illuminate, test the affected B+ or ignition circuit for a short-circuit to ground or an open/high resistance.

5. If all circuits test normal, replace the control solenoid valve assembly.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.