Object Detection System and Pedestrian Protection System: Other Buick LaCrosse II facelift

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Object Detection Description and Operation (with Front and Rear Park Assist, UD5) , Object Detection Description and Operation (with Rearview Camera, UVC) , Object Detection Description and Operation (with Lane Departure Warning, UFL) , Object Detection Description and Operation (with Forward Collision Alert, UEU) , Object Detection Description and Operation (with Side Blind Zone Alert, UFT) , Object Detection Description and Operation (with Lane Change Assist, UKC) , Object Detection Description and Operation (with Rear Cross Traffic Alert, UFG)

Electrical Information Reference

1. «Circuit Testing»(ref-621979-S25489769122014061000000)
2. «Connector Repairs»(ref-621979-S38632404432014061000000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

1. Ignition ON.
2. Verify that B094C is not set. If DTC is set Replace the B218R Side Object Sensor Module - Right. If the DTC is not set
3. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Control Module References for side object sensor module replacement, programming and setup.

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Object Detection Description and Operation (with Front and Rear Park Assist, UD5) , Object Detection Description and Operation (with Rearview Camera, UVC) , Object Detection Description and Operation (with Lane Departure Warning, UFL) , Object Detection Description and Operation (with Forward Collision Alert, UEU) , Object Detection Description and Operation (with Side Blind Zone Alert, UFT) , Object Detection Description and Operation (with Lane Change Assist, UKC) , Object Detection Description and Operation (with Rear Cross Traffic Alert, UFG)

Electrical Information Reference

1. «Circuit Testing»(ref-621979-S25489769122014061000000)
2. «Connector Repairs»(ref-621979-S38632404432014061000000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON.
2. Verify that DTC B1405 is not set. If the DTC is set Refer to «DTC B1405»(ref-622020-S03165652182014061000000) If the DTC is not set
3. Verify that DTC B0958 01, B0959 01, B0960 01 or B0961 01 is not set. If the DTC is set Check the appropriate sensor for contamination with mud. If no contamination is diagnosed, refer to Circuit/System Testing (below). If the DTC is not set
4. Verify that DTC B0958 21, B0959 21, B0960 21 or B0961 21 is not set. If the DTC is set Check the appropriate sensor for contamination with mud, ice or snow. If no contamination is diagnosed, replace the sensor. If the DTC is not set
5. Verify that DTC B0958 3A, B0959 3A, B0960 3A or B0961 3A is not set. If the DTC is set Replace the appropriate sensor with a sensor of correct sensor type.
6. Ignition ON, transmission in REVERSE, verify the scan tool Parking Assist System Status parameter displays Enabled. If the Parking Assist System displays Disabled Refer to Circuit/System Testing (below). If the Parking Assist System displays Enabled
7. All OK.

Perform the Diagnostic Repair Verification after completing the repair

1. «Rear Object Alarm Control Module Replacement»(ref-622020-S40028929022014061000000)
2. «Rear Parking Assist Alarm Sensor Replacement»(ref-622020-S28110269162014061000000)
3. «Control Module References»(ref-621985-S26077645002014061000000) for rear parking assist control module replacement, programming and setup.

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Object Detection Description and Operation (with Front and Rear Park Assist, UD5) , Object Detection Description and Operation (with Rearview Camera, UVC) , Object Detection Description and Operation (with Lane Departure Warning, UFL) , Object Detection Description and Operation (with Forward Collision Alert, UEU) , Object Detection Description and Operation (with Side Blind Zone Alert, UFT) , Object Detection Description and Operation (with Lane Change Assist, UKC) , Object Detection Description and Operation (with Rear Cross Traffic Alert, UFG)

Electrical Information Reference

1. «Circuit Testing»(ref-621979-S25489769122014061000000)
2. «Connector Repairs»(ref-621979-S38632404432014061000000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON.
2. Verify the scan tool Park Assist Switch parameter changes between Active and Inactive when cycling the parking assist switch. If the Parking Assist Switch parameter does not change between Active and Inactive Refer to «Parking Assist Switch Malfunction»(ref-622020-S16378549422014061000000) . If the Parking Assist Switch parameter changes between Active and Inactive
3. Verify the park assist switch indicator turns ON and OFF when cycling the parking assist switch. If the indicator does not turn ON and OFF Refer to «Parking Assist Switch Indicator Malfunction»(ref-622020-S16378549422014061000000) . If the indicator turns ON and OFF
4. All OK.

Perform the Diagnostic Repair Verification after completing the repair

1. «Accessory Switch Replacement»(ref-621976-S40066192052014061000000)
2. «Control Module References»(ref-621985-S26077645002014061000000) for rear parking assist control module replacement, programming and setup.

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Object Detection Description and Operation (with Front and Rear Park Assist, UD5) , Object Detection Description and Operation (with Rearview Camera, UVC) , Object Detection Description and Operation (with Lane Departure Warning, UFL) , Object Detection Description and Operation (with Forward Collision Alert, UEU) , Object Detection Description and Operation (with Side Blind Zone Alert, UFT) , Object Detection Description and Operation (with Lane Change Assist, UKC) , Object Detection Description and Operation (with Rear Cross Traffic Alert, UFG)

Electrical Information Reference

1. «Circuit Testing»(ref-621979-S25489769122014061000000)
2. «Connector Repairs»(ref-621979-S38632404432014061000000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON.
2. Verify that DTC B356A is not set. If the DTC is set Refer to «DTC B356A»(ref-622020-S42496418132014061000000) . If the DTC is not set
3. Verify the lane departure warning indicator turns ON and OFF while pressing and releasing the lane departure warning switch. If the indicator does not turn ON and OFF Refer to Circuit/System Testing (below). If the indictor turns ON and OFF
4. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

1. «Cruise Control Switch Replacement»(ref-622013-S29370183172014061000000) - Steering Wheel Controls Switch - Left replacement.
2. «Control Module References»(ref-621985-S26077645002014061000000) for Frontview Camera Module replacement, programming and setup.

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Object Detection Description and Operation (with Front and Rear Park Assist, UD5) , Object Detection Description and Operation (with Rearview Camera, UVC) , Object Detection Description and Operation (with Lane Departure Warning, UFL) , Object Detection Description and Operation (with Forward Collision Alert, UEU) , Object Detection Description and Operation (with Side Blind Zone Alert, UFT) , Object Detection Description and Operation (with Lane Change Assist, UKC) , Object Detection Description and Operation (with Rear Cross Traffic Alert, UFG)

Electrical Information Reference

1. «Circuit Testing»(ref-621979-S25489769122014061000000)
2. «Connector Repairs»(ref-621979-S38632404432014061000000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

Scan Tool Reference

Control Module References for scan tool information

1. Verify no DTC is set. If a DTC is present, diagnose this first. Refer to «Diagnostic Trouble Code (DTC) List - Vehicle»(ref-621960-S33076509982014061000000) .
2. Verify the scan tool Vehicle Direction Camera System parameter is NORMAL. If not the specified value, refer to «Lane Departure Warning System Malfunction»(ref-622020-S32395199062014061000000) , and «Forward Collision Alert System Malfunction»(ref-622020-S22549025912014061000000) .
3. Verify the scan tool Vehicle Direction Camera Calibration Status parameter is CALIBRATED. If not the specified value, calibrate the K109 Frontview Camera Module. Refer to «Front View Camera Module Calibration»(ref-622020-S33259719832014061000000) .

Perform the Diagnostic Repair Verification after completing the repair.

Control Module References for front view camera module programming and setup

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Object Detection Description and Operation (with Front and Rear Park Assist, UD5) , Object Detection Description and Operation (with Rearview Camera, UVC) , Object Detection Description and Operation (with Lane Departure Warning, UFL) , Object Detection Description and Operation (with Forward Collision Alert, UEU) , Object Detection Description and Operation (with Side Blind Zone Alert, UFT) , Object Detection Description and Operation (with Lane Change Assist, UKC) , Object Detection Description and Operation (with Rear Cross Traffic Alert, UFG)

Electrical Information Reference

1. «Circuit Testing»(ref-621979-S25489769122014061000000)
2. «Connector Repairs»(ref-621979-S38632404432014061000000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON.
2. Verify the DTC B1015 is not. If the DTC B1015 is set Program the control module the DTC originally set in. Verify the DTC does not set. If the DTC is sets, replace the control module the DTC set in. If the DTC does not set All OK If the DTC B1015 is not set
3. All OK

Perform the Diagnostic Repair Verification after completing the repair

Control Module References for the parking assist control module, frontview camera module replacement, programming and setup.

Schematic Reference

1. «Data Communication Schematics»(ref-622018-S09924933272014061000000)
2. «Control Module References»(ref-621985-S26077645002014061000000)

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Data Link Communications Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-621979-S25489769122014061000000)
2. «Connector Repairs»(ref-621979-S38632404432014061000000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON.
2. Verify DTC B101D is not set. If DTC B101D is set Replace the B218L Side Object Sensor Module - Left. Verify no new DTCs set and side object system operates properly. If there are new DTCs refer to «Diagnostic Trouble Code (DTC) List - Vehicle»(ref-621960-S33076509982014061000000) . If there are no new DTCs and the side object system operates properly If DTC B101D is not set
3. All OK

Perform the Diagnostic Repair Verification after completing the repair.

Control Module References for B218L Side Object Sensor Module - Left replacement, programming and setup.

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Object Detection Description and Operation (with Front and Rear Park Assist, UD5) , Object Detection Description and Operation (with Rearview Camera, UVC) , Object Detection Description and Operation (with Lane Departure Warning, UFL) , Object Detection Description and Operation (with Forward Collision Alert, UEU) , Object Detection Description and Operation (with Side Blind Zone Alert, UFT) , Object Detection Description and Operation (with Lane Change Assist, UKC) , Object Detection Description and Operation (with Rear Cross Traffic Alert, UFG)

Electrical Information Reference

1. «Circuit Testing»(ref-621979-S25489769122014061000000)
2. «Connector Repairs»(ref-621979-S38632404432014061000000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON.
2. Verify that DTC B2545 is not set. If the DTC is set Refer to «DTC B2545»(ref-621982-S29158696552014061000000) . If the DTC is not set
3. Verify the rearview camera has no debris on the lens and that the bezel and bezel seal are not damaged. If debris are found on the lens Clean the lens. If the lens, bezel, or bezel seal are damaged, replace as necessary. If no debris on the lens
4. Ignition ON, transmission in R.
5. Verify the backup lamps are illuminated. If the backup lamps are not illuminated Refer to «Backup Lamps Malfunction»(ref-621982-S00778160312014061000000) . If the backup lamps are illuminated
6. Engine running, transmission in R.
7. Verify a clear rear vision image is displayed on the P17 Info Display Module. If a clear image is not displayed Refer to Circuit/System Testing (below). If a clear image is displayed
8. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

1. «Control Module References»(ref-621985-S26077645002014061000000) for Body Control Module and Human Machine Interface Control Module replacement, programming, and setup.

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Object Detection Description and Operation (with Front and Rear Park Assist, UD5) , Object Detection Description and Operation (with Rearview Camera, UVC) , Object Detection Description and Operation (with Lane Departure Warning, UFL) , Object Detection Description and Operation (with Forward Collision Alert, UEU) , Object Detection Description and Operation (with Side Blind Zone Alert, UFT) , Object Detection Description and Operation (with Lane Change Assist, UKC) , Object Detection Description and Operation (with Rear Cross Traffic Alert, UFG)

Electrical Information Reference

1. «Circuit Testing»(ref-621979-S25489769122014061000000)
2. «Connector Repairs»(ref-621979-S38632404432014061000000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON.
2. Verify the transmission is in REVERSE. If the transmission not in REVERSE Refer to «DTC B2545»(ref-621982-S29158696552014061000000) If the transmission is in REVERSE
3. Verify the scan tool Park Assist Sensor Reference Voltage is between 7.2-9.2 V. If not between 7.2-9.2 V Refer to Circuit/System Testing (below). If is between 7.2-9.2 V
4. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

1. «Rear Parking Assist Alarm Sensor Replacement»(ref-622020-S28110269162014061000000)
2. «Control Module References»(ref-621985-S26077645002014061000000) for parking assist control module replacement, programming and setup

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Object Detection Description and Operation (with Front and Rear Park Assist, UD5) , Object Detection Description and Operation (with Rearview Camera, UVC) , Object Detection Description and Operation (with Lane Departure Warning, UFL) , Object Detection Description and Operation (with Forward Collision Alert, UEU) , Object Detection Description and Operation (with Side Blind Zone Alert, UFT) , Object Detection Description and Operation (with Lane Change Assist, UKC) , Object Detection Description and Operation (with Rear Cross Traffic Alert, UFG)

Electrical Information Reference

1. «Circuit Testing»(ref-621979-S25489769122014061000000)
2. «Connector Repairs»(ref-621979-S38632404432014061000000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON.
2. Verify the P45LR Seat Haptic Movement Motor - Driver Left Rear turns on and off when commanding the Driver Seat Cushion Left Rear Haptic Movement On and Off with a scan tool. If the motor does not function Refer to Circuit/System Testing (below). If the motor functions
3. Verify the P45RR Seat Haptic Movement Motor - Driver Right Rear turns on and off when commanding the Driver Seat Cushion Right Rear Haptic Movement On and Off with a scan tool. If the motor does not function Refer to Circuit/System Testing (below). If the motor functions
4. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

1. «Control Module References»(ref-621985-S26077645002014061000000) for seat memory control module - driver replacement, programming and setup.

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Object Detection Description and Operation (with Front and Rear Park Assist, UD5) , Object Detection Description and Operation (with Rearview Camera, UVC) , Object Detection Description and Operation (with Lane Departure Warning, UFL) , Object Detection Description and Operation (with Forward Collision Alert, UEU) , Object Detection Description and Operation (with Side Blind Zone Alert, UFT) , Object Detection Description and Operation (with Lane Change Assist, UKC) , Object Detection Description and Operation (with Rear Cross Traffic Alert, UFG)

Electrical Information Reference

1. «Circuit Testing»(ref-621979-S25489769122014061000000)
2. «Connector Repairs»(ref-621979-S38632404432014061000000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON.
2. Verify the scan tool Lane Departure Warning Switch Status parameter while pressing and releasing the lane departure warning switch. The parameter should change between Open and Closed. If the parameter does not change Refer to Circuit/System Testing (below). If the parameter changes
3. Verify the driver information center displays and adjusts forward collision alert setting while repeatedly pressing and releasing the forward collision switch. The setting should change cycle between far, medium, near, and off. If the display does not change Refer to Circuit/System Testing (below). If the display changes
4. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

1. «Cruise Control Switch Replacement»(ref-622013-S29370183172014061000000) - Steering Wheel Controls Switch - Left replacement.
2. «Control Module References»(ref-621985-S26077645002014061000000) for Frontview Camera Module placement, programming and setup.

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Object Detection Description and Operation (with Front and Rear Park Assist, UD5) , Object Detection Description and Operation (with Rearview Camera, UVC) , Object Detection Description and Operation (with Lane Departure Warning, UFL) , Object Detection Description and Operation (with Forward Collision Alert, UEU) , Object Detection Description and Operation (with Side Blind Zone Alert, UFT) , Object Detection Description and Operation (with Lane Change Assist, UKC) , Object Detection Description and Operation (with Rear Cross Traffic Alert, UFG)

Electrical Information Reference

1. «Circuit Testing»(ref-621979-S25489769122014061000000)
2. «Connector Repairs»(ref-621979-S38632404432014061000000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

Scan Tool Reference

Control Module References for scan tool information

Note. DTC P15F6 is an informational DTC. Diagnose all other K20 Engine Control Module DTCs prior to DTC P15F6.

1. Verify there are no other K20 Engine Control Module or communication DTCs set. If a DTC is set Refer to «Diagnostic Trouble Code (DTC) List - Vehicle»(ref-621960-S33076509982014061000000) If a DTC is not set
2. Complete the diagnosis by looking for an intermittent serial data circuit fault. Refer to «Scan Tool Does Not Communicate with High Speed GMLAN Device»(ref-622026-S41159385282014061000000) . If an intermittent serial data circuit fault is found Repair as necessary. If an intermittent serial circuit fault is not found
3. Clear DTCs and operate the vehicle in the conditions that the customer experienced.
4. Verify DTC P15F6 does not set. If the DTC sets Replace B129 Cruise Control Vehicle Distance Sensor Module If the DTC does not set
5. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

Control Module References for cruise control vehicle distance sensor module replacement, programming, and setup.

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Object Detection Description and Operation (with Front and Rear Park Assist, UD5) , Object Detection Description and Operation (with Rearview Camera, UVC) , Object Detection Description and Operation (with Lane Departure Warning, UFL) , Object Detection Description and Operation (with Forward Collision Alert, UEU) , Object Detection Description and Operation (with Side Blind Zone Alert, UFT) , Object Detection Description and Operation (with Lane Change Assist, UKC) , Object Detection Description and Operation (with Rear Cross Traffic Alert, UFG)

Electrical Information Reference

1. «Circuit Testing»(ref-621979-S25489769122014061000000)
2. «Connector Repairs»(ref-621979-S38632404432014061000000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

Scan Tool Reference

Control Module References for scan tool information

Note. DTC P15F7 is an informational DTC. Diagnose all other K20 Engine Control Module DTCs prior to DTC P15F7.

1. Verify there are no other K20 Engine Control Module or communication DTCs set. If a DTC is set Refer to «Diagnostic Trouble Code (DTC) List - Vehicle»(ref-621960-S33076509982014061000000) If a DTC is not set
2. Complete the diagnosis by looking for an intermittent serial data circuit fault. Refer to «Scan Tool Does Not Communicate with High Speed GMLAN Device»(ref-622026-S41159385282014061000000) . If an intermittent serial data circuit fault is found Repair as necessary. If an intermittent serial circuit fault is not found
3. Clear DTCs and operate the vehicle in the conditions that the customer experienced.
4. Verify DTC P15F7 does not set. If the DTC sets Replace K41R Rear Parking Assist Control Module. If the DTC does not set
5. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

Control Module References for rear parking assist control module replacement, programming, and setup.

Symptoms - Object Detection

Note. The following steps must be completed before using the symptom tables

1. Perform the «Diagnostic System Check - Vehicle»(ref-621960-S18230123002014061000000) before using the Symptom Tables in order to verify that all of the following are true: before using the Symptom Tables in order to verify that all of the following are true: There are no DTCs set. The control modules can communicate via the serial data link.
2. Review the system operation in order to familiarize yourself with the system functions. Refer to «Object Detection Description and Operation (with Front and Rear Park Assist, UD5)»(ref-622020-S26842107992014061000000) , «Object Detection Description and Operation (with Rearview Camera, UVC)»(ref-622020-S17578797652014061000000) , «Object Detection Description and Operation (with Lane Departure Warning, UFL)»(ref-622020-S39643057542014061000000) , «Object Detection Description and Operation (with Forward Collision Alert, UEU)»(ref-622020-S35941586462014061000000) , «Object Detection Description and Operation (with Side Blind Zone Alert, UFT)»(ref-622020-S22942035602014061000000) , «Object Detection Description and Operation (with Lane Change Assist, UKC)»(ref-622020-S20777060012014061000000) , «Object Detection Description and Operation (with Rear Cross Traffic Alert, UFG)»(ref-622020-S19098452882014061000000) .

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Object Detection Description and Operation (with Front and Rear Park Assist, UD5) , Object Detection Description and Operation (with Rearview Camera, UVC) , Object Detection Description and Operation (with Lane Departure Warning, UFL) , Object Detection Description and Operation (with Forward Collision Alert, UEU) , Object Detection Description and Operation (with Side Blind Zone Alert, UFT) , Object Detection Description and Operation (with Lane Change Assist, UKC) , Object Detection Description and Operation (with Rear Cross Traffic Alert, UFG)

Electrical Information Reference

1. «Circuit Testing»(ref-621979-S25489769122014061000000)
2. «Connector Repairs»(ref-621979-S38632404432014061000000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

Scan Tool Reference

Control Module References for scan tool information

Note. Refer to Diagnostic Aids before performing Circuit/System Verification.

1. Ignition ON.
2. Verify the scan tool Forward Collision Alert Function Status parameter is not Malfunction. If the parameter is Malfunction Refer to «Circuit/System Testing - Front View Camera Module Malfunction»(ref-622020-S36297698932014061000000) . If parameter is not Malfunction
3. Verify the forward collision alert indicators illuminate momentarily when turning ignition OFF and then ON. If the indicators do not illuminate Refer to Displays and Gauges. If the indicators illuminate
4. Verify the driver information center forward collision alert distance indicator toggles between far, medium, near and off when repeatedly pressing the forward collision alert gap switch. If the setting does not change Refer to «Circuit/System Testing - Forward Collision Alert Switch Malfunction»(ref-622020-S36297698932014061000000) . If the setting changes
5. Verify the area of the K109 Frontview Camera Module is not contaminated. If contaminated Clean the windshield. If not contaminated
6. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

1. «Cruise Control Switch Replacement»(ref-622013-S29370183172014061000000)
2. «Control Module References»(ref-621985-S26077645002014061000000) for front view camera module replacement, programming and setup

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Object Detection Description and Operation (with Front and Rear Park Assist, UD5) , Object Detection Description and Operation (with Rearview Camera, UVC) , Object Detection Description and Operation (with Lane Departure Warning, UFL) , Object Detection Description and Operation (with Forward Collision Alert, UEU) , Object Detection Description and Operation (with Side Blind Zone Alert, UFT) , Object Detection Description and Operation (with Lane Change Assist, UKC) , Object Detection Description and Operation (with Rear Cross Traffic Alert, UFG)

Electrical Information Reference

1. «Circuit Testing»(ref-621979-S25489769122014061000000)
2. «Connector Repairs»(ref-621979-S38632404432014061000000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

Scan Tool Reference

Control Module References for scan tool information.

1. Ignition ON.
2. Verify the park assist system is enabled through the parking assist switch. If the park assist system is manually disabled, enable the system. Refer to the vehicle owners manual for instructions on enabling the system. If the park assist system does not manually change
3. Verify the scan tool Park Assist Switch parameter while pressing and releasing the parking assist switch. The parameter should change between Active and Inactive. If the parameter does not change between Active and Inactive Refer to «Parking Assist Switch Circuit Malfunction»(ref-622020-S23604451232014061000000) . If the parameter changes between Active and Inactive
4. Command the Park Assist Switch LED output control On and Off with the scan tool. The parking assist switch indicator should turn On and Off when changing between the commanded states. If the indicator does not turn ON and OFF Refer to «Parking Assist Switch Indicator Circuit Malfunction»(ref-622020-S23604451232014061000000) . If the indicator does turn ON and OFF
5. Transmission in reverse, verify the Engine Control Module scan tool Reverse Position Switch parameter is Active. If the parameter is not Active Refer to «Backup Lamps Malfunction»(ref-621982-S00778160312014061000000) . If the parameter is Active
6. Transmission in REVERSE, verify the scan tool Park Assist System Status parameter displays Enable. If the parameter is not Enabled Refer to «Diagnostic Aids»(ref-622020-S13572900372014061000000) to determine the cause of the inhibit. If the parameter is Enabled
7. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

1. «Accessory Switch Replacement»(ref-621976-S40066192052014061000000)
2. «Control Module References»(ref-621985-S26077645002014061000000) for parking assist control module replacement, programming, and setup

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Object Detection Description and Operation (with Front and Rear Park Assist, UD5) , Object Detection Description and Operation (with Rearview Camera, UVC) , Object Detection Description and Operation (with Lane Departure Warning, UFL) , Object Detection Description and Operation (with Forward Collision Alert, UEU) , Object Detection Description and Operation (with Side Blind Zone Alert, UFT) , Object Detection Description and Operation (with Lane Change Assist, UKC) , Object Detection Description and Operation (with Rear Cross Traffic Alert, UFG)

Electrical Information Reference

1. «Circuit Testing»(ref-621979-S25489769122014061000000)
2. «Connector Repairs»(ref-621979-S38632404432014061000000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON.
2. Verify that DTC B2545 is not set. If the DTC is set Refer to «DTC B2545»(ref-621982-S29158696552014061000000) . If the DTC is not set
3. Verify the rearview camera there is no debris on the lens and that the bezel or bezel seal is not damaged. If debris are found on the lens Clean the lens. If the lens, bezel, or bezel seal are damaged, replace as necessary. If no debris on the lens
4. Ignition ON, transmission in REVERSE.
5. Verify the backup lamps are On. If the backup lamps are not ON Refer to «Backup Lamps Malfunction»(ref-621982-S00778160312014061000000) . If the backup lamps are ON
6. Engine running, transmission in REVERSE.
7. Verify a clear rear vision image is displayed on the radio. If a clear image is not displayed Refer to Circuit/System Testing (below). If a clear image is displayed
8. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

1. «Rearview Camera Image Display Module Replacement»(ref-622020-S02331763112014061000000)
2. «Control Module References»(ref-621985-S26077645002014061000000) for body control module or radio replacement, programming and setup

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Object Detection Description and Operation (with Front and Rear Park Assist, UD5) , Object Detection Description and Operation (with Rearview Camera, UVC) , Object Detection Description and Operation (with Lane Departure Warning, UFL) , Object Detection Description and Operation (with Forward Collision Alert, UEU) , Object Detection Description and Operation (with Side Blind Zone Alert, UFT) , Object Detection Description and Operation (with Lane Change Assist, UKC) , Object Detection Description and Operation (with Rear Cross Traffic Alert, UFG)

Electrical Information Reference

1. «Circuit Testing»(ref-621979-S25489769122014061000000)
2. «Connector Repairs»(ref-621979-S38632404432014061000000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON.
2. Verify the scan tool can communicate with the left side object sensor. If the scan tool can not communicate with the left side object sensor Refer to «Circuit/System Testing - Left Side Object Sensor Malfunction»(ref-622020-S33217711042014061000000) . If the scan tool can communicate with the left side object sensor
3. Verify DTC U18A6 is not present If DTC U18A6 is present Diagnose this DTC first. Refer to «Diagnostic Trouble Code List»(ref-623609) . If DTC U18A6 is not present
4. Ignition OFF, ignition ON.
5. Verify that both side blind zone alert system indicators located in the outside rearview mirrors briefly turn ON and then turn OFF during the system self test. If both side blind zone alert indicators do not briefly turn ON and OFF Verify the system is enabled If disabled, refer to «diagnostic aids»(ref-622020-S28650571072014061000000) for cause of disable. If enabled, refer to «Circuit/System Testing - Side Object Indicator Malfunction»(ref-622020-S33217711042014061000000) . If only one indicator does not briefly illuminate during the self test Refer to «Circuit/System Testing - Side Object Indicator Malfunction»(ref-622020-S33217711042014061000000) . If both side blind zone alert indicators briefly turn ON and OFF
6. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

1. «Outside Rearview Mirror Glass Replacement»(ref-622011-S26893651032014061000000)
2. «Control Module References»(ref-621985-S26077645002014061000000) for side object sensor module replacement, programming and setup.

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Object Detection Description and Operation (with Front and Rear Park Assist, UD5) , Object Detection Description and Operation (with Rearview Camera, UVC) , Object Detection Description and Operation (with Lane Departure Warning, UFL) , Object Detection Description and Operation (with Forward Collision Alert, UEU) , Object Detection Description and Operation (with Side Blind Zone Alert, UFT) , Object Detection Description and Operation (with Lane Change Assist, UKC) , Object Detection Description and Operation (with Rear Cross Traffic Alert, UFG)

Electrical Information Reference

1. «Circuit Testing»(ref-621979-S25489769122014061000000)
2. «Connector Repairs»(ref-621979-S38632404432014061000000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

Scan Tool Reference

Control Module References for scan tool information

Note. Refer to Diagnostic Aids before performing Circuit/System Verification.

1. Ignition ON.
2. Verify that DTC B356A is not set. If the DTC is set Refer to «DTC B356A»(ref-622020-S42496418132014061000000) . If the DTC is not set
3. Verify that DTC B0987 is not set. If the DTC is set Refer to «DTC B0987»(ref-622020-S32152499842014061000000) . If the DTC is not set
4. Verify the scan tool Frontview Camera System Status parameter is Normal. If the parameter is Undefined or Malfunction Refer to «Diagnostic Aids»(ref-622020-S35571285382014061000000) . If the parameter is Normal
5. Verify the scan tool Lane Departure Warning Switch Status parameter changes between Open and Closed while pressing and releasing the lane departure warning switch. If the parameter does not change between Open and Closed Refer to «Lane Departure Warning Switch Malfunction»(ref-622020-S22854754482014061000000) in Circuit/System Testing. If the parameter changes between Open and Closed
6. Verify the scan tool Lane Departure Warning Switch indicator turns on and off while pressing and releasing the lane departure warning switch. If the indicator does not turn on and off Refer to «Lane Departure Warning Switch Indicator Malfunction»(ref-622020-S22854754482014061000000) in Circuit/System Testing. If the indicator turns on and off
7. Verify the area of the K109 Frontview Camera Module for contamination. If it needs to be cleaned Clean the windshield. If it does not need to be cleaned
8. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

1. «Accessory Switch Replacement»(ref-621976-S40066192052014061000000) - S48D Multifunction Switch 2 - Instrument Panel replacement.
2. «Control Module References»(ref-621985-S26077645002014061000000) for Frontview Camera Module replacement, programming and setup.

Scheme 9

Forward Range Radar Module Replacement

Parking Assist System Driver Information Center Messages

SERVICE PARK ASSIST

The driver information center displays SERVICE PARK ASSIST when the advanced parking assist control module detects a malfunction in the parking assist system and the system is disabled. The driver information center also displays SERVICE PARK ASSIST when a loss of communication occurs with the advanced parking assist control module.

PARK ASSIST OFF

The PARK ASSIST OFF message is displayed in the driver information center when the parking assist system is disabled due to conditions that disable or inhibit the system. The advanced parking assist control module requests the driver information center display PARK ASSIST OFF when it detects that one of the following conditions

1. The parking assist system is manually disabled using the parking assist switch.
2. An object is attached to the rear of the vehicle, such as a trailer, bicycle rack, trailer hitch receiver, or tow bar. Also, an object extending beyond a lowered tailgate will disable the system.
3. The parking assist sensors are covered by snow, mud, dirt, slush, or ice.
4. The vehicle bumper is damaged.
5. Excessive paint thickness on a replacement parking assist sensor.
6. The parking assist sensors are disrupted by vibrations, like those caused by a large nearby vehicle or from heavy equipment such as a jackhammer.

Lane Departure Warning System Driver Information Center Messages

The front view camera module can command the driver information center to display the various messages to alert the driver of a system concern or status information. For detailed information about the possible messages please refer to the user's manual.

Forward Collision Alert System Driver Information Center Messages

The front view camera module can command the driver information center to display the various messages to alert the driver of a system concern or status information. For detailed information about the possible messages please refer to the user's manual.

Scheme 10

The side blind zone alert system is a feature that utilizes two side object sensor modules to provide enhanced customer convenience by sensing and reporting to the driver that an object is present in one of the driver's side blind zones. This is communicated to the driver by illuminating an icon on the left or right side view mirror, depending on what side of the vehicle the object is detected. This lane change assist system is radar based system in which the sensors transmit and receives energy that is reflected from external objects and used to determine if that object is an object of interest. Although this system is intended to help drivers avoid lane change crashes, it does not replace driver vision and therefore should be considered a lane change aid.

Side Blind Zone Alert System Components

The side blind zone alert system is made up of the following components

1. Left side object sensor module
2. Right side object sensor module
3. Driver outside rearview mirror
4. Passenger outside rearview mirror

Side Object Sensor Modules

The side object sensor modules are located on each side of the vehicle behind the rear fascia and are not directly visible from outside the vehicle. The sensors use radar to determine the presence of objects nearby. The left side object sensor is the master that communicates on serial data. There is a private communication network between the left and right sensors. The scan tool is able to communicate only with the left sensor.

When an object is detected in the left side blind zone, the side object sensor module sends a message to the right sensor through serial data. The right sensor then supplies voltage to illuminate the visual indicator on the left side outside rear view mirror. When an object is detected in the right side blind zone, the right side object sensor will supply a voltage to illuminate the visual indicator on the right side outside rear view mirror. Each sensor is supplied B+ and ground.

Outside Rearview Mirrors

The outside rearview mirrors contain an icon that is backlit with high intensity, amber-colored LED's located on the mirror surface. The display brightness adapts to day/night conditions. The side blind zone alert indicator icon in the left or right outside rearview mirror is illuminated if the left or right side object sensor module detects a vehicle in the side blind zone to inform the driver that there is a vehicle driving in the blind zone.

Side Blind Zone Alert Driver Information Center Messages

SIDE BLIND ZONE ALERT OFF

This message indicates that the system has been disabled through the driver information center. Refer to the vehicle owners manual for instructions on how to set personalization options on the driver information center.

SERVICE SIDE DETECTION SYSTEM

This message indicates that the system requires service. When the message is displayed, the indicators may remain illuminated at all times, notifying the driver that the side blind zone system should not be relied upon when changing lanes. Check vehicle for DTCs to determine the cause of this notification.

SIDE DETECTION SYSTEM UNAVAILABLE

This message indicates that the system has been temporarily disabled because the sensor is blocked or can otherwise not accurately detect vehicles or objects. Verify there is no damage to rear fascia or there are any bumper stickers that may interfere with the radar signals. Ask the customer if any of the following circumstances were present when the system became unavailable: towing a trailer, having a bike rack attached, mud, dirt, snow, ice, or slush build-up on the rear fascia, heavy rainfall, or excessive road spray.

Side Blind Alert Block Diagram

The lane change alert system is an advanced side blind zone alert feature that utilizes the side object sensor modules that are also used for rear cross traffic alert. The lane change alert system is designed to provide enhanced customer convenience by sensing and reporting to the driver that an object is present in one of the driver's side blind zones, or that a highway licensable vehicle is rapidly approaching the vehicle in one of the adjacent lanes. This is communicated to the driver by illuminating an icon on the left or right side view mirror, depending on what side of the vehicle the object is detected. The lane change alert system is radar based system in which the sensors transmit and receives energy that is reflected from external objects and used to determine if that object is an object of interest. Although this system is intended to help drivers avoid lane change crashes, it does not replace driver vision and therefore should be considered a lane change aid.

Lane Change Alert System Components

The lane change alert system is made up of the following components

1. Side object sensor module - left
2. Side object sensor module - right
3. Driver outside rearview mirror
4. Passenger outside rearview mirror

Side Object Sensor Modules

The side object sensor modules are located on each side of the vehicle behind the rear fascia and are not directly visible from outside the vehicle. The sensors use radar to determine the presence of objects nearby. The left side object sensor is the master that communicates on serial data. There is a private communication network between the left and right sensors. The scan tool is able to communicate only with the left sensor.

When an object is detected in the left side blind zone or approaching in the left side lane change alert zone, the side object sensor module sends a message to the right sensor through serial data. The right sensor then supplies voltage to illuminate the visual indicator on the left side outside rear view mirror. When an object is detected in the right side blind zone or approaching in the right side lane change alert area, the right side object sensor will supply a voltage to illuminate the visual indicator on the right side outside rear view mirror. Each sensor is supplied B+ and ground.

Outside Rearview Mirrors

The outside rearview mirrors contain an icon that is backlit with high intensity, amber-colored LED's located on the mirror surface. The display brightness adapts to day/night conditions. The side blind zone alert indicator icon in the left or right outside rearview mirror is illuminated if the left or right side object sensor module detects a vehicle in the side blind zone or approaching in the lane change alert area to inform the driver that it may not be safe to change lanes.

Lane Change Alert Driver Information Center Messages

LANE CHANGE ALERT OFF

This message indicates that the system has been disabled through the driver information center. Refer to the vehicle owners manual for instructions on how to set personalization options on the driver information center.

SERVICE SIDE DETECTION SYSTEM

This message indicates that the system requires service. When the message is displayed, the indicators may remain illuminated at all times, notifying the driver that the side blind zone system should not be relied upon when changing lanes. Check vehicle for DTCs to determine the cause of this notification.

SIDE DETECTION SYSTEM TEMPORARILY UNAVAILABLE

This message indicates that the system has been temporarily disabled because the sensor is blocked or can otherwise not accurately detect vehicles or objects. Verify there is no damage to rear fascia or there are any bumper stickers that may interfere with the radar signals. Ask the customer if any of the following circumstances were present when the system became unavailable: towing a trailer, having a bike rack attached, mud, dirt, snow, ice, or slush build-up on the rear fascia, heavy rainfall, or excessive road spray.

Scheme 11

The rear cross traffic alert system is a feature that utilized two side object sensor modules to provide enhanced customer convenience while backing up by sensing and providing warnings to the driver on impending rear cross traffic. The rear cross traffic alert system is designed to detect and track objects of interest within a specified coverage zone behind the vehicle. The system is designed to alert the driver, with a visual display and either an audible sound or a haptic warning, if equipped and enabled, to the presence of objects of interest that may cause a collision with the host vehicle. Although the system is intended to assist drivers in backing up, it does not replace driver's vision. The driver is responsible to check carefully for objects outside of the coverage zone (e.g., a fast approaching vehicle) for a safe backing maneuver.

Rear Cross Traffic Alert System Components

The side blind zone alert system is made up of the following components

1. Left side object sensor module
2. Right side object sensor module
3. Visual Display Icons located on the infotainment display screen
4. Audio system chime
5. Haptic safety seat (if equipped)

Side Object Sensor Modules

The side object sensor modules are located on each side of the vehicle behind the rear fascia and are not directly visible from outside the vehicle. The sensors use radar to determine the presence of objects nearby. The left side object sensor is the master that communicates on serial data. There is a private communication network between the left and right sensors. The scan tool is able to communicate only with the left sensor.

When an object is detected in the left rear cross traffic zone, the side object sensor module sends a serial data message to the human interface module and memory seat module to provide alerts. Each sensor is supplied B+ and ground.

Display Icons

The rear cross traffic alert system visual alert display consists of two visual icons, one on each side of the display screen of the rearview camera display, that are used to alert the driver on rear cross traffic from each side of the host vehicle respectively. In addition to visual indicators, the audio system will beep (if enabled) and the haptic safety seat will vibrate (if equipped and enabled). Refer to owner's manual for vehicle customization.

Audio or Haptic Notification

The alert output type can be driver selected to either audio or haptic. The chime location will be left rear for left rear cross traffic alert and right rear for right rear cross traffic alert. The haptic seat system response will be to generate 3 repetitions of haptic vibration in the left rear area of the seat for left cross traffic alert and right rear area of the seat for right cross traffic alert. If there is a problem with the haptic seats, the audio chime will be substituted.

Rear Cross Traffic Alert Driver Information Center Messages

REAR CROSS TRAFFIC ALERT OFF

This message indicates that the system has been disabled through the driver information center. Refer to the vehicle owners manual for instructions on how to set personalization options on the driver information center.

SERVICE SIDE DETECTION SYSTEM

This message indicates that the system requires service. Since the side object sensors are also used for side blind zone alert and/or lane change alert, these feature will also be inoperative. Check vehicle for DTCs to determine the cause of this notification.

SIDE DETECTION SYSTEM TEMPORARILY UNAVAILABLE

This message indicates that the system has been temporarily disabled because the sensors are blocked or can otherwise not accurately detect vehicles or objects. Verify there is no damage to rear fascia or there are any bumper stickers that may interfere with the radar signals. Ask the customer if any of the following circumstances that present when the system became unavailable: mud, dirt, snow, ice, or slush build-up on the rear fascia, heavy rainfall, or excessive road spray.