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Object Detection System - Park Assist System: Other GMC Terrain I

Collision/avoidance 2 illustrations ~2461 words

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Object Detection Description and Operation (UD7) , Object Detection Description and Operation (Front View Camera with UEU) , Object Detection Description and Operation (Front View Camera with UFL) , Object Detection Description and Operation (UVC)

Electrical Information Reference

  1. «Circuit Testing»(ref-491170-S01761107082012073000000)
  2. «Connector Repairs»(ref-491170-S29468502572012073000000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-491170-S23088445062012073000000)
  4. «Wiring Repairs»(ref-491170-S24000289392012073000000)

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

  1. Verify that DTC B1405 is not present. If DTC is present, refer to «DTC B1405»(ref-491208-S35597623982012073000000) .
  2. Verify that DTC B0958 01, B0959 01, B0960 01 or B0961 01 is not present. If DTC is present, check the appropriate sensor for contamination with mud, ice or snow. If no contamination is diagnosed, refer to Circuit/System Testing below.
  3. Verify that DTC B0958 21, B0959 21, B0960 21 or B0961 21 is not present. If DTC is present, check the appropriate sensor for contamination with mud, ice or snow. If no contamination is diagnosed, replace the sensor.
  4. Verify that DTC B0958 3A, B0959 3A, B0960 3A or B0961 3A is not present. If DTC is present, replace the appropriate sensor with a sensor of correct sensor type.
  5. Ignition ON, transmission in REVERSE, verify the scan tool Parking Assist System Status parameter displays Enabled.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Rear Parking Assist Alarm Sensor Replacement»(ref-491208-S28780163682012073000000)
  2. «Control Module References»(ref-491163-S28884786072012073000000) 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 (UD7) , Object Detection Description and Operation (Front View Camera with UEU) , Object Detection Description and Operation (Front View Camera with UFL) , Object Detection Description and Operation (UVC)

Electrical Information Reference

  1. «Circuit Testing»(ref-491170-S01761107082012073000000)
  2. «Connector Repairs»(ref-491170-S29468502572012073000000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-491170-S23088445062012073000000)
  4. «Wiring Repairs»(ref-491170-S24000289392012073000000)

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-491208-S37367307252012073000000) . If the DTC is not set
  3. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

Control Module References 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 (UD7) , Object Detection Description and Operation (Front View Camera with UEU) , Object Detection Description and Operation (Front View Camera with UFL) , Object Detection Description and Operation (UVC)

Electrical Information Reference

  1. «Circuit Testing»(ref-491170-S01761107082012073000000)
  2. «Connector Repairs»(ref-491170-S29468502572012073000000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-491170-S23088445062012073000000)
  4. «Wiring Repairs»(ref-491170-S24000289392012073000000)

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-491140-S28645929192012073000000) .
  2. Verify the scan tool Vehicle Direction Camera System parameter is NORMAL. If not the specified value, refer to «Front View Camera Module Malfunction (UFL)»(ref-491208-S20708871022012073000000) , «Front View Camera Module Malfunction (UEU)»(ref-491208-S37331098362012073000000) .
  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-491208-S04369464752012073000000) .

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 (UD7) , Object Detection Description and Operation (Front View Camera with UEU) , Object Detection Description and Operation (Front View Camera with UFL) , Object Detection Description and Operation (UVC)

Electrical Information Reference

  1. «Circuit Testing»(ref-491170-S01761107082012073000000)
  2. «Connector Repairs»(ref-491170-S29468502572012073000000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-491170-S23088445062012073000000)
  4. «Wiring Repairs»(ref-491170-S24000289392012073000000)

Scan Tool Reference

Control Module References for scan tool information

Ignition ON, program the K41 Parking Assist Control Module and verify the DTC does not reset.

  1. If the DTC is reset, replace the K41 Parking Assist Control Module

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

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

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Object Detection Description and Operation (UD7) , Object Detection Description and Operation (Front View Camera with UEU) , Object Detection Description and Operation (Front View Camera with UFL) , Object Detection Description and Operation (UVC)

Electrical Information Reference

  1. «Circuit Testing»(ref-491170-S01761107082012073000000)
  2. «Connector Repairs»(ref-491170-S29468502572012073000000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-491170-S23088445062012073000000)
  4. «Wiring Repairs»(ref-491170-S24000289392012073000000)

Scan Tool Reference

Control Module References

Ignition ON, perform the scan tool LED Test. Each of the three LEDs should illuminate during the test cycle.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Information Center Telltale Assembly Replacement»(ref-491208-S38251816682012073000000)
  2. «Control Module References»(ref-491163-S28884786072012073000000) for parking assist control module replacement, setup and programming

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Object Detection Description and Operation (UD7) , Object Detection Description and Operation (Front View Camera with UEU) , Object Detection Description and Operation (Front View Camera with UFL) , Object Detection Description and Operation (UVC)

Electrical Information Reference

  1. «Circuit Testing»(ref-491170-S01761107082012073000000)
  2. «Connector Repairs»(ref-491170-S29468502572012073000000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-491170-S23088445062012073000000)
  4. «Wiring Repairs»(ref-491170-S24000289392012073000000)

Scan Tool Reference

Control Module References for scan tool information

Ignition ON, transmission in REVERSE, observe the scan tool Sensor Feed Voltage Output parameter. The reading should be between 6.3-10.4 V.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Rear Parking Assist Alarm Sensor Replacement»(ref-491208-S28780163682012073000000)
  2. «Control Module References»(ref-491163-S28884786072012073000000) for rear object alarm module replacement, setup and programming

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Object Detection Description and Operation (UD7) , Object Detection Description and Operation (Front View Camera with UEU) , Object Detection Description and Operation (Front View Camera with UFL) , Object Detection Description and Operation (UVC)

Electrical Information Reference

  1. «Circuit Testing»(ref-491170-S01761107082012073000000)
  2. «Connector Repairs»(ref-491170-S29468502572012073000000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-491170-S23088445062012073000000)
  4. «Wiring Repairs»(ref-491170-S24000289392012073000000)

Scan Tool Reference

Control Module References for scan tool information

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.

Perform the Diagnostic Repair Verification after completing the repair.

  1. «Cruise Control Switch Replacement (NK5)»(ref-491192-S30960895532012073000000) , «Cruise Control Switch Replacement (NP5)»(ref-491192-S15350510752012073000000)
  2. «Control Module References»(ref-491163-S28884786072012073000000) for front view camera 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-491140-S24065023222012073000000) 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 (UD7)»(ref-491208-S38032468792012073000000) , «Object Detection Description and Operation (Front View Camera with UEU)»(ref-491208-S17920411802012073000000) , «Object Detection Description and Operation (Front View Camera with UFL)»(ref-491208-S39621242722012073000000) , «Object Detection Description and Operation (UVC)»(ref-491208-S23076232842012073000000) .

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 (UD7) , Object Detection Description and Operation (Front View Camera with UEU) , Object Detection Description and Operation (Front View Camera with UFL) , Object Detection Description and Operation (UVC)

Electrical Information Reference

  1. «Circuit Testing»(ref-491170-S01761107082012073000000)
  2. «Connector Repairs»(ref-491170-S29468502572012073000000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-491170-S23088445062012073000000)
  4. «Wiring Repairs»(ref-491170-S24000289392012073000000)

Scan Tool Reference

Control Module References for scan tool information

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

  1. Observe the scan tool Lane Departure Warning Switch Status parameter while pressing the lane departure warning switch. The parameter should change between OPEN and CLOSED. If the parameter does not change between the specified values, refer to Lane Departure Warning Switch Malfunction in Circuit/System Testing below.
  2. Observe the switch indicator while cycling the lane departure warning switch. The indicator should turn ON and OFF when cycling between the commanded states. If the indicator does not turn ON and OFF, refer to Lane Departure Warning Switch Indicator Malfunction in Circuit/System Testing below.
  3. Inspect the area of the K109 Front View Camera Module for contamination. If it needs to be cleaned, clean the windshield.

Perform the Diagnostic Repair Verification after completing the repair.

  1. «Cruise Control Switch Replacement (NK5)»(ref-491192-S30960895532012073000000) , «Cruise Control Switch Replacement (NP5)»(ref-491192-S15350510752012073000000)
  2. «Control Module References»(ref-491163-S28884786072012073000000) for front view camera 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 (UD7) , Object Detection Description and Operation (Front View Camera with UEU) , Object Detection Description and Operation (Front View Camera with UFL) , Object Detection Description and Operation (UVC)

Electrical Information Reference

  1. «Circuit Testing»(ref-491170-S01761107082012073000000)
  2. «Connector Repairs»(ref-491170-S29468502572012073000000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-491170-S23088445062012073000000)
  4. «Wiring Repairs»(ref-491170-S24000289392012073000000)

Scan Tool Reference

Control Module References for scan tool information

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

  1. Observe the scan tool Forward Collision Alert Function Status parameter. The parameter should show Off, Disabled, Not Ready To Assist or Ready To Assist. If the parameter shows Malfunction, refer to Forward Collision Alert System Malfunction in Circuit/System Testing below.
  2. Drive the vehicle behind another vehicle with sufficient safety distance. The green vehicle ahead alert indicator in vehicle direction display should turn ON when the vehicle on the path ahead is detected. With no vehicle driving in front of the host vehicle, increasing the safety distance or changing the driving path, the green vehicle ahead alert indicator in the instrument panel should turn OFF. If the indicator does not turn ON and OFF, refer to Forward Collision Alert System Malfunction in Circuit/System Testing below.
  3. Inspect the area of the K109 Frontview Camera Module for contamination. If it needs to be cleaned, clean the windshield.

Perform the Diagnostic Repair Verification after completing the repair.

  1. «Cruise Control Switch Replacement (NK5)»(ref-491192-S30960895532012073000000) , «Cruise Control Switch Replacement (NP5)»(ref-491192-S15350510752012073000000)
  2. «Control Module References»(ref-491163-S28884786072012073000000) for front view camera 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 (UD7) , Object Detection Description and Operation (Front View Camera with UEU) , Object Detection Description and Operation (Front View Camera with UFL) , Object Detection Description and Operation (UVC)

Electrical Information Reference

  1. «Circuit Testing»(ref-491170-S01761107082012073000000)
  2. «Connector Repairs»(ref-491170-S29468502572012073000000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-491170-S23088445062012073000000)
  4. «Wiring Repairs»(ref-491170-S24000289392012073000000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for 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 (UD7) , Object Detection Description and Operation (Front View Camera with UEU) , Object Detection Description and Operation (Front View Camera with UFL) , Object Detection Description and Operation (UVC)

Electrical Information Reference

  1. «Circuit Testing»(ref-491170-S01761107082012073000000)
  2. «Connector Repairs»(ref-491170-S29468502572012073000000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-491170-S23088445062012073000000)
  4. «Wiring Repairs»(ref-491170-S24000289392012073000000)

Scan Tool Reference

Control Module References for scan tool information

  1. Inspect the rearview camera and verify there are 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.
  2. Ignition ON, vehicle in PARK, verify the backup lamps are off. If the backup lamps are illuminated, refer to «Backup Lamps Malfunction»(ref-491150-S12833467992012073000000) .
  3. Transmission in REVERSE, verify the backup lamps are on. If the backup lamps are not illuminated, refer to «Backup Lamps Malfunction»(ref-491150-S12833467992012073000000) .
  4. Engine running, transmission in REVERSE, verify a clear rear vision image is displayed on the radio. If a clear image is not displayed, refer to Circuit/System Testing below.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Rearview Camera Image Display Module Replacement»(ref-491208-S10926359332012073000000)
  2. «Control Module References»(ref-491163-S28884786072012073000000) for body control module or radio replacement, setup and programming

Scheme 6

Scheme 6: Rear Object Alarm Control Module Replacement
Scheme 6: Rear Object Alarm Control Module Replacement
CalloutComponent Name
Preliminary Procedure Remove the left body side trim panel. Refer to Body Side Trim Panel Replacement - Left Side .
1Rear Object Alarm Module Retainers (Qty: 3)
2Rear Object Alarm Module Procedure Disconnect the electrical connectors. For programming and set up, refer to Control Module References

Rear Object Alarm Control Module Replacement

Scheme 7

Scheme 7: Information Center Telltale Assembly Replacement
Scheme 7: Information Center Telltale Assembly Replacement
CalloutComponent Name
1Information Center Telltale Bezel
2Information Center Telltale Assembly Screws (Qty: 2) CAUTION: Refer to Fastener Caution . Tighten 2 N.m (18 lb in)
3Information Center Telltale Assembly Procedure Disconnect the electrical connector.
CAUTION
Refer to Fastener Caution .

Information Center Telltale Assembly Replacement

Towbar Enabling

If the vehicle has a factory Trailer Hitch installed and the owner uses a factory ball mount package there is a personalization option available to allow the Rear Park Assist system to work with the factory Trailer Hitch.

This option can be selected using the Vehicle Personalization in the Radio and selecting Collision/Detection Systems. Press the MENU/SELECT knob when Park Assist is highlighted. Turn the knob to select Tow Bar. Press the knob to confirm and go back to the last menu.

Rear Parking Assist System Driver Information Center Messages

SERVICE PARK ASSIST

The driver information center displays SERVICE PARK ASSIST when the parking assist control module detects a malfunction in the rear 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 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 red LED in the park assist indicator will be illuminated. The parking assist control module requests the driver information center display PARK ASSIST OFF when it detects that one of the following conditions

  1. The rear parking assist system is manually disabled by the vehicle operator through the audio system personalization menu.
  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.

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.

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.

More articles — Object Detection System - Park Assist System