B356A
DTC B356A
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.
DTC Descriptors
DTC B356A 02
-
Vehicle Direction Warning Switch Circuit Short to Ground
DTC B356A 05
-
Vehicle Direction Warning Switch Circuit Short to Voltage
Diagnostic Fault Information
Circuit/System Description
The lane departure warning is enabled and disabled through the vehicle direction warning switch located in the multifunction switch at the instrument panel. When enabled, the front view camera module will illuminate the indicator located in the switch.
Conditions for Running the DTC
Ignition ON
Conditions for Setting the DTC
DTC B356A 02
The front view camera module has detected a short to ground for more than 10 s.
DTC B356A 05
The front view camera module has detected a short to voltage for more than 10 s.
Action Taken When the DTC Sets
* Lane departure warning is disabled.
* Service Front Camera is displayed on the driver information center.
Conditions for Clearing the DTC
The condition for setting the DTC is no longer present.
Reference Information
Schematic Reference
Object Detection Schematics [1][2]Collision Avoidance and Parking Assist Systems
Connector End View Reference
Component Connector End Views Sunshade - Left (DH6)
Description and Operation
Object Detection Description and Operation (UD7) Object Detection (UD7)Object Detection Description and Operation (Accessory Dealer Installed) Object Detection Description and Operation (Accessory Dealer Installed)Object Detection Description and Operation (UVC) Object Detection (UVC)Object Detection Description and Operation (UFT) Object Detection (UFT)Object Detection Description and Operation (Front View Camera with UFL) Object Detection Description and Operation (Front View Camera with UFL)
Electrical Information Reference
* Circuit Testing Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs
Scan Tool Reference
Control Module References Control Module References for scan tool information
Circuit/System Verification
Ignition ON, observe the scan tool Vehicle Direction Warning Switch Status parameter while pressing and releasing the vehicle direction warning switch. The parameter should change between ON and OFF.
Circuit/System Testing
1. Ignition OFF, remove the ignition key, open the driver door, disconnect the scan tool, all vehicle systems OFF, this may take up to 2 min.
2. Disconnect the harness connector at the S48D Multifunction Switch 2 - Instrument Panel.
3. Test for less than 5 ohms between the S48D Multifunction Switch 2 - Instrument Panel ground circuit terminal 2 and ground.
• If greater than the specified value, test the ground circuit for an open/high resistance.
4. Ignition ON, verify the scan tool Vehicle Direction Warning Switch Status parameter is OFF.
• If not the specified value, test the signal circuit terminal 5 for a short to ground. If the circuit tests normal, replace the K109 Frontview Camera Module.
5. Install a 3 A fused jumper wire between the signal circuit terminal 5 and ground circuit terminal 2. Verify within 10 s the scan tool Vehicle Direction Warning Switch Status parameter is ON.
• If not the specified value, test the signal circuit terminal for a short to battery or an open/high resistance. If the circuit tests normal, replace the K109 Frontview Camera Module.
6. If all circuits test normal, replace the S48D Multifunction Switch 2 - Instrument Panel.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.