Chevrolet Trax: DTC B1405: Control module voltage reference output 2
DIAGNOSTIC CODE INDEX
DTC B1405: CONTROL MODULE VOLTAGE REFERENCE OUTPUT 2
Diagnostic Instructions
- Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
- Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
- Diagnostic Procedure Instructions provides an overview of each
diagnostic category.
DTC Descriptor
DTC B1405 03
Control Module Voltage Reference Output 2 Circuit Low Voltage
DTC B1405 07
Control Module Voltage Reference Output 2 Circuit High Voltage
Diagnostic Fault Information
Circuit/System Description
The body control module (BCM) monitors the system voltage to make sure that
the voltage stays within the
proper range. Damage to components and/or incorrect operation can occur when the
voltage is out of range.
Conditions for Running the DTC
- Battery voltage is between 9-16 V.
- The ignition is ON.
Conditions for Setting the DTC
The BCM detects a low/high voltage on the control circuit.
Conditions for Clearing the DTC
- The condition responsible for setting the DTC no longer exists.
- A history DTC will clear once 100 consecutive malfunction free ignition
cycles have occurred.
Reference Information
Schematic Reference
Steering Wheel Secondary/Configurable Control Schematics (Encore),
Steering Wheel
Secondary/Configurable Control Schematics (Trax)
Connector End View Reference
WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS -
INDEX - ENCORE WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT
CONNECTOR END VIEWS - INDEX - TRAX
Description and Operation
Steering Wheel Controls Description and Operation
Electrical Information Reference
- Circuit Testing
- Connector Repairs
- Testing for Intermittent Conditions and Poor Connections
- Wiring Repairs
Scan Tool Reference
Control Module References
Circuit/System Verification
Engine running, accessories OFF, measure and record the battery voltage at
the battery terminals. The voltage
should be between 12.6-15.0 V.
- If not within the specified range, refer to Charging System Test .
Circuit/System Testing
- Ignition OFF, disconnect the X2 and the X1 harness connector at the K9
Body Control Module.
- Test for less than 5 ohms between the X2 harness connector ground
circuit terminal 2 and ground.
- If greater than the specified range, test the ground circuit for an open/high
resistance.
- Test for less than 5 ohms between the X1 harness connector ground
circuit terminal 1 and ground.
- If greater than the specified range, test the ground circuit for an open/high
resistance.
- Ignition ON, test for more than 11 V between the X2 harness connector
terminal 1 and ground.
- If less than the specified value test the control circuit for an open/high
resistance.
- If all circuits test normal, replace the K9 Body Control Module.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic
procedure.
Control Module References for BCM replacement, setup, and programming
READ NEXT:
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diag
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diag
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diag
SEE MORE:
The spare tire and tools are located
in the storage compartment in the
rear of the vehicle.
Without Subwoofer
Wrench
Jack
Strap
With Subwoofer
To access the spare tire and tools:
Open the liftgate. See Liftgate
Lift the trim cover.
If the vehicle has a subwoofer
assembly on top of the
Special Tools
EL-49642 SPS Programming Support Tool
For equivalent regional tools, refer to Special Tools.
For step-by-step control module programming instructions, please refer to the
techline information system (TIS)
terminal.
Review the information below to ensure proper programming protocol.
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