Suzuki XL7 2007 Service Manual page 235

Reference Information
Schematic Reference
"Starting and Charging Schematics: "
Connector End View Reference
"Engine Electrical 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: "
Scan Tool Reference
• "Scan Tool Data List - Engine Controls - 3.6L (LY7)"
• "Scan Tool Data Definitions - Engine Controls - 3.6L
(LY7)"
Circuit/System Verification
Ignition ON, observe the scan tool ECM Ignition 1 Signal
parameter. The Ignition 1 Signal parameter should read
10.5 volts or greater.
Circuit/System Testing
1. Ignition ON, measure the voltage at the battery
terminals and compare it with the scan tool ECM
Ignition 1 Signal parameter. Verify that battery
terminal and ignition 1 signal readings do not differ
more than 1.0 volt.
➢ If greater than specified value, test the ignition 1
and ground circuits for open/high resistance. If the
circuits test normal, replace the ECM.
2. Go to "Charging System Test: ".
Repair Instructions
Perform the "Diagnostic Repair Verification - Vehicle
Diagnostic Information: " after completing the diagnostic
procedure.
"Control Module References: " for ECM replacement,
setup, and programming
Engine General Information and Diagnosis:
DTC P0563
Diagnostic Instructions
• Perform the "Diagnostic System Check - Vehicle
Diagnostic Information: " prior to using this diagnostic
procedure.
• Review "Strategy Based Diagnosis: " for an overview
of the diagnostic approach.
• "Diagnostic Procedure Instructions - Vehicle
Diagnostic Information: " provides an overview of
each diagnostic category.
DTC Descriptor
DTC P0563: System Voltage High
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 above 8 km/h (5 mph).
• The system voltage is between 9.5-18 volts.
Conditions for Setting the DTC
The ECM detects a system voltage above 16 volts for
less than 1 second.
Action Taken When the DTC Sets
• The ECM will command the charge indicator and or
warning message to be illuminated on the instrument
panel cluster (IPC) and the driver information center
(DIC), if equipped.
• The ECM will not illuminate the malfunction indicator
lamp (MIL).
• The ECM will store conditions, which were present
when the DTC set as Failure Records data only.
Conditions for Clearing the DTC
• The ECM will command the message OFF after one
trip in which the diagnostic test has been run and
passed.
• The history DTC will clear after 40 consecutive warm-
up cycles have occurred without a malfunction.
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