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Object Detection System - Park Assist System: Other Chevrolet Volt I

Collision/avoidance 1 illustration ~1617 words

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS

Description and Operation

Object Detection Description and Operation (UD5) , Object Detection Description and Operation (UVC)

Electrical Information Reference

  1. «Circuit Testing»(ref-487461-S14472700752012072300000)
  2. «Connector Repairs»(ref-487461-S16008896872012072300000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-487461-S02545222692012072300000)
  4. «Wiring Repairs»(ref-487461-S20629117392012072300000)

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-487497-S30723496692012072300000) .
  2. Verify that DTC B0954 01, B0955 01, B0956 01 or B0957 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.
  3. Verify that DTC B0954 21, B0955 21, B0956 21 or B0957 21 is not present. If DTC is present, check the respective sensor for contamination by mud, ice or snow. If no contamination is diagnosed, replace the sensor.
  4. Verify that DTC B0954 3A, B0955 3A, B0956 3A or B0957 3A is not present. If DTC is present, replace the respective sensor with a sensor of correct sensor type.
  5. Vehicle in Service Mode, transmission in REVERSE, verify the scan tool Parking Assist System Status parameter displays Enabled.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

  1. «Front Parking Assist Alarm Sensor Replacement»(ref-487497-S25536376142012072300000)
  2. «Control Module References»(ref-487462-S26106952412012072300000) for parking assist control module replacement, programming and setup

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS

Description and Operation

Object Detection Description and Operation (UD5) , Object Detection Description and Operation (UVC)

Electrical Information Reference

  1. «Circuit Testing»(ref-487461-S14472700752012072300000)
  2. «Connector Repairs»(ref-487461-S16008896872012072300000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-487461-S02545222692012072300000)
  4. «Wiring Repairs»(ref-487461-S20629117392012072300000)

Scan Tool Reference

Control Module References for scan tool information

  1. Verify that DTC B1405 is not present. If DTC is present, refer to «DTC B1405»(ref-487497-S30723496692012072300000) .
  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.
  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. Vehicle in Service Mode, transmission in REVERSE, verify the scan tool Parking Assist System Status parameter displays Enabled.

Perform the Diagnostic Repair Verification after completing the repair.

  1. «Rear Parking Assist Alarm Sensor Replacement»(ref-487497-S29847830642012072300000)
  2. «Control Module References»(ref-487462-S26106952412012072300000) for parking assist control module replacement, programming and setup

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS

Description and Operation

Object Detection Description and Operation (UD5) , Object Detection Description and Operation (UVC)

Electrical Information Reference

  1. «Circuit Testing»(ref-487461-S14472700752012072300000)
  2. «Connector Repairs»(ref-487461-S16008896872012072300000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-487461-S02545222692012072300000)
  4. «Wiring Repairs»(ref-487461-S20629117392012072300000)

Scan Tool Reference

Control Module References for scan tool information

  1. Verify that DTC B0967 02 is not present. If DTC is present, refer to Parking Assist Switch Circuit Malfunction.
  2. Verify that B0968 01 or B0968 06 is not present. If DTC is present, refer to Parking Assist Switch Indicator Circuit Malfunction.
  3. Activate and deactivate the parking assist switch and verify the scan tool Park Assist Switch parameter changes between Active and Inactive.

Perform the Diagnostic Repair Verification after completing the repair.

  1. «Accessory Switch Replacement»(ref-487450-S05377367702012072300000)
  2. «Control Module References»(ref-487462-S26106952412012072300000) for parking assist control module replacement, programming and setup

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS

Description and Operation

Object Detection Description and Operation (UD5) , Object Detection Description and Operation (UVC)

Electrical Information Reference

  1. «Circuit Testing»(ref-487461-S14472700752012072300000)
  2. «Connector Repairs»(ref-487461-S16008896872012072300000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-487461-S02545222692012072300000)
  4. «Wiring Repairs»(ref-487461-S20629117392012072300000)

Scan Tool Reference

Control Module References for scan tool information

Vehicle in Service Mode, 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 repair.

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

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS

Description and Operation

Object Detection Description and Operation (UD5) , Object Detection Description and Operation (UVC)

Electrical Information Reference

  1. «Circuit Testing»(ref-487461-S14472700752012072300000)
  2. «Connector Repairs»(ref-487461-S16008896872012072300000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-487461-S02545222692012072300000)
  4. «Wiring Repairs»(ref-487461-S20629117392012072300000)

Scan Tool Reference

Control Module References for scan tool information

Vehicle in Service Mode, activate the parking assist, observe the scan tool Park Assist Sensor Reference Voltage parameter. The reading should be between 6.3-10.4 V.

Perform the Diagnostic Repair Verification after completing the repair.

  1. «Front Parking Assist Alarm Sensor Replacement»(ref-487497-S25536376142012072300000)
  2. «Rear Parking Assist Alarm Sensor Replacement»(ref-487497-S29847830642012072300000)
  3. «Control Module References»(ref-487462-S26106952412012072300000) for 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-487438-S13406627192012072300000) 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 (UD5)»(ref-487497-S10989638342012072300000) , «Object Detection Description and Operation (UVC)»(ref-487497-S33366834872012072300000) .

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

Description and Operation

Object Detection Description and Operation (UD5) , Object Detection Description and Operation (UVC)

Electrical Information Reference

  1. «Circuit Testing»(ref-487461-S14472700752012072300000)
  2. «Connector Repairs»(ref-487461-S16008896872012072300000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-487461-S02545222692012072300000)
  4. «Wiring Repairs»(ref-487461-S20629117392012072300000)

Scan Tool Reference

Control Module References for scan tool information

  1. Vehicle in Service Mode, verify the park assist system is enabled through the parking assist switch or audio system personalization menu. If the park assist system is manually disabled, enable the system. Refer to the vehicle owners manual for instructions on enabling the system.
  2. Observe 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 the specified values, refer to Parking Assist Switch Circuit Malfunction.
  3. Command the Park Assist Switch LED 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.
  4. Transmission in Reverse, verify one audible beep sounds and the scan tool Park Assist System Status parameter is Enable. If not the specified values, refer to Diagnostic Aids and the scan tool Park Assist Disable History parameters to determine the cause of the inhibit.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Accessory Switch Replacement»(ref-487450-S05377367702012072300000)
  2. «Control Module References»(ref-487462-S26106952412012072300000) for parking assist control module replacement, programming and setup

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS

Description and Operation

Object Detection Description and Operation (UD5) , Object Detection Description and Operation (UVC)

Electrical Information Reference

  1. «Circuit Testing»(ref-487461-S14472700752012072300000)
  2. «Connector Repairs»(ref-487461-S16008896872012072300000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-487461-S02545222692012072300000)
  4. «Wiring Repairs»(ref-487461-S20629117392012072300000)

Scan Tool Reference

Control Module References for scan tool information

  1. Verify that DTC B2545 is not present. If DTC is present, refer to «DTC B2545»(ref-487446-S38081838042012072300000) .
  2. 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.
  3. Vehicle ON and in PARK, verify the backup lamps are off. If the backup lamps are illuminated, refer to «Backup Lamps Malfunction»(ref-487446-S17730445902012072300000) .
  4. Vehicle ON, transmission in REVERSE, verify the backup lamps are on. If the backup lamps are not illuminated, refer to «Backup Lamps Malfunction»(ref-487446-S17730445902012072300000) .
  5. Vehicle ON, 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.

Perform the Diagnostic Repair Verification after completing the repair.

  1. «Rearview Camera Image Display Module Replacement»(ref-487497-S15362525032012072300000)
  2. «Control Module References»(ref-487462-S26106952412012072300000) for body control module or radio replacement, programming and setup

Scheme 5

Scheme 5: Front and Rear Object Alarm Module Replacement
Scheme 5: Front and Rear Object Alarm Module Replacement
CalloutComponent Name
Preliminary Procedure Remove the left quarter inner trim finish panel. Refer to Quarter Inner Trim Finish Panel Replacement .
1Front And Rear Object Alarm Module Nuts (Qty: 3) CAUTION: Refer to Fastener Caution .
2Front And Rear Object Alarm Module Procedure Disconnect the electrical connectors. For programming and set up, refer to Control Module References .
CAUTION
Refer to Fastener Caution .

Front and Rear Object Alarm Module Replacement

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 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 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.

More articles — Object Detection System - Park Assist System