Diagnostic Instructions
DTC Descriptors
DTC B1405 02
Control Module Voltage Reference Output 2 Circuit Short to Ground
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 object sensors are 3-wire sensors that are used to determine the distance between the vehicle and an object of interest. The front and rear parking assist control module supplies 8 V to the object sensors via the object sensor supply voltage circuit and provides ground via the object sensor low reference circuit. The front and rear parking assist control module triggers the sensors in a sequential loop. After each sensor transmits, the front and rear parking assist control module uses the sensor echo received through the object sensor signal circuit to calculate the distance and position of an object.
Conditions for Running the DTC
Conditions for Setting the DTC
B1405 02
The rear parking assist control module has detected the object sensor supply voltage circuit is shorted to ground.
B1405 03
The rear parking assist control module has detected the object sensor supply voltage circuit is less than 7.2 V.
B1405 07
The rear parking assist control module has detected the object sensor supply voltage circuit is greater than 9.2 V.
Action Taken When the DTC Sets
Conditions for Clearing the DTC
The condition for setting the DTC is no longer present.
Reference Information
Schematic Reference
Object Detection Schematics (Encore), Object Detection 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
Object Detection Description and Operation (Rearvision Camera, UVC), Object Detection Description and Operation (Rear Park Assist, UD7), Object Detection Description and Operation (Side Blind Zone Alert, UFT), Object Detection Description and Operation (Rear Cross Traffic Alert, UFG)
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
Refer to Circuit/System Testing
Circuit/System Testing
Repair the short to voltage on the circuit.
Repair the short to ground on the circuit.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the repair.
Control Module References for rear parking assist control module replacement, programming and setup.