DTC B1405
Diagnostic Instructions
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
|
Short to Ground
|
Open/High Resistance
|
Short to Voltage
|
Signal Performance
|
Control Module Voltage Reference Output 2
|
1
|
B1405 03
|
-
|
-
|
1. Open fuse
|
|
| |
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. |
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
Connector End View Reference
Component Connector End Views
Description and Operation
Steering Wheel Controls Description and Operation
Electrical Information Reference
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
| 1. |
Ignition OFF, disconnect the
X2 and the X1 harness connector at the K9 Body Control
Module. |
| 2. |
Test for less than 5 Ω
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. |
| 3. |
Test for less than 5 Ω
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. |
| 4. |
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. |
| 5. |
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
|
