PRE-RELEASE
DTC B1527
| DTC B1527 |
| 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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| DTC Descriptor |
DTC B1527 00
High Parasitic Load Detected
| Circuit/System Description |
The body control module (BCM) monitors the state of charge of the electrical system. If the BCM senses that the state of charge at ignition On is 30 percent lower than what it was when the engine was running.
| Conditions for Running the DTC |
The ignition must be in Accessory or Run mode for this code to set.
| Conditions for Setting the DTC |
The state of charge at ignition ON is 30 percent lower than when the engine was running and battery drain is more than 2 A.
| Action Taken When the DTC Sets |
There is no battery telltale illuminated or DIC message displayed.
| Conditions for Clearing the DTC |
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The DTC will clear if the fault does not return after 50 consecutive ignition cycles.
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The DTC will clear when run state of charge is greater than or equal to 80 percent.
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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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Scan Tool Reference
Control Module References for scan tool information
| Circuit/System Verification |
Refer to Battery Electrical Drain/Parasitic Load Test .
