DTC P0562 or P0563
Diagnostic Instructions
DTC Descriptors
DTC P0562: System Voltage Low Voltage
DTC P0563: System Voltage High Voltage
Diagnostic Fault Information
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Circuit
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Short to Ground
|
High Resistance
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Short to Voltage
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Signal Performance
|
|
Battery Voltage
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P2534
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P0562, P2534
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-
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P0562, P2534
|
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Ground
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--
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P0562, P2534
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-
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P0722, P0723
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Circuit/System Description
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. Theses DTC detects high or low TCM voltage for an extended
period.
Conditions for Running the DTC
P0562
| • |
The ignition voltage was greater than
6.0 volts, and has not dropped below 2.0 volts. |
| • |
The engine speed is greater than
1,200 RPM. |
P0563
The ignition voltage was greater than 6.0 volts, and has
not dropped below 2.0 volts.
Conditions for Setting the DTC
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.
Action Taken When the DTC Sets
DTCs P0562 and P0563 are Type C DTCs.
Conditions for Clearing the DTC
DTCs P0562 and P0563 are Type C DTCs.
Diagnostic Aids
| • |
Observe the driver information centre (DIC)
messaging that would indicate the electrical system requires
service. |
| • |
Inspect for the following conditions: |
| - |
Loose or damaged terminals at the generator |
| - |
Loose or worn generator drive belt |
| • |
Running the engine with a battery charger attached
may cause DTC P0563 to set. |
Reference Information
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 .
Circuit/System Verification
- 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 . |
- Observe the scan tool TCM Ignition Voltage parameter.
The reading should be between 12.6-15.0 volts.
- 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 .
Circuit/System Testing
- Ignition OFF, disconnect the X1 14-way harness
connector at the transmission.
- Connect the DT-48616-10 harness to the
vehicle wire harness X1 14-way transmission connector.
- 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. |
- Ignition ON, verify that a test lamp illuminates
between the B+ terminal and ground, and the ignition circuit
terminals listed below and ground.
| ⇒ |
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. |
- If all circuits test normal, replace the Q8 control
solenoid valve assembly.
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic
procedure.
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