Charging System Test
Charging System Test |
Diagnostic Instructions |
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Perform the
Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
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Review
Strategy Based Diagnosis
for an overview of the diagnostic approach.
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Diagnostic Procedure Instructions
provides an overview of each diagnostic category.
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Reference Information |
Schematic Reference
Starting and Charging Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Charging System Description and Operation
Electrical Information Reference
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Circuit Testing
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Connector Repairs
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Testing for Intermittent Conditions and Poor Connections
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Wiring Repairs
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Circuit/System Verification |
Engine running, observe the charge indicator on the instrument cluster or message in the driver information center display. The charge indicator on the instrument cluster should be turned OFF and the driver information center display should not display any charging system message.
Circuit/System Testing |
1. |
Ignition ON, verify that no G13 Generator or B18 battery current sensor DTCs are set that would cause a charging system concern.
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2. |
If DTCs are set, refer to
Diagnostic Trouble Code (DTC) List - Vehicle
.
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3. |
Ignition OFF, measure the voltage across the battery terminals. The voltage should read 12.0 V or greater at room temperature.
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4. |
If not within the specified value, refer to
Battery Inspection/Test
.
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5. |
Engine ON, increase engine speed to 2,500 RPM. Verify the battery voltage is between 12.6-15.0 V. |
6. |
If not within specified range, replace the G13 generator.
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7. |
Engine ON, increase engine speed to 2,500 RPM. Turn ON all vehicle accessories. Verify the battery voltage is between 12.6-15.0 V.
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8. |
If not within specified range, replace the G13 generator.
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Repair Instructions |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Generator Replacement (LAU) Generator Replacement (LF1)