Captiva

Parking Assist System Malfunction - UFR Short Wheel Base

The ultrasonic parking assist system is designed to identify and notify the driver of an object in the vehicle's path when moving forward or reversing at speeds of less than 8 km/h (5 MPH). The distance and location of the object is determined by eight object sensors: four located in the rear bumper and four located in the front bumper. The parking assist system will notify the driver using an audible signal through the radio.

The scan tool Park Assist Disable History parameters are a list of the seven previous reasons the parking assist system was disabled. These parameters may help in the diagnosis of an intermittent concern or a customer concern which is the result of normal system operation. The following is a brief description of potential causes which may aid in diagnosis:

Schematic Reference

Object Detection Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Object Detection Description and Operation : C140/Long Body UFR or UD7 → C145/Short Body UFR → Rear Vision Camera → Holden Genuine Accessory(Aftermarket)

Electrical Information Reference

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON, verify the park assist system is enabled through the parking assist switch through the DIC.

⇒	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.

Note: After completing the next step the vehicle might need to be driven in the forward direction at speed greater than 40 km/h (25 MPH).

4. Transmission in Reverse, verify that 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.

Parking Assist Switch Circuit Malfunction

1. Ignition OFF, disconnect the harness connector at the S48 multi-function switch module.
2. Test for less than 10 Ω between the ground circuit terminal 16 and ground.

⇒	If greater than the specified value, test the ground circuit for an open/high resistance.

3. Connect the harness connector at the S48 multi-function switch.
4. Disconnect the X1 harness connector at the K88 advance parking assist control module.
5. Ignition ON, test for less than 0.3 V between the signal circuit terminal 8 X1 and ground.

⇒	If greater than the specified value, test the signal circuit for a short to voltage.

6. Ignition ON, verify that a test lamp does not illuminate between the B+ circuit terminal 1 X1 and signal circuit terminal 8 X1.

⇒	If the test lamp illuminates, test signal circuit for a short to ground. If the circuit tests normal, replace the S48 multi-function switch.

7. Verify that the test lamp illuminates between the B+ circuit terminal 1 X1 and signal circuit terminal 8 X1 while pressing the parking assist switch.

⇒	If the test lamp does not illuminate, test the signal circuit for an open/high resistance. If all circuits test normal, replace the S48 multi-function switch.

8. If all circuits test normal, replace the K88 advance parking assist control module.

Parking Assist Switch Indicator Circuit Malfunction

1. Ignition OFF, disconnect the harness connector at the S48 multi-function switch.
2. Ignition ON, test for B+ between the ignition circuit terminal 1 and ground.

⇒	If less than the specified value, test the ignition circuit for a short to ground or an open/high resistance.

3. Command the Park Assist Switch LED output control ON with the scan tool. Test for B+ between the ignition circuit terminal 1 and the signal circuit terminal 12.

⇒	If less than the specified value, test the signal circuit for an open/high resistance. If all circuits test normal, replace the K88 advance parking assist control module.

4. Command the Park Assist Switch LED output control OFF with the scan tool. Test for less than 0.3 V between the ignition circuit terminal 1 and the signal circuit terminal 12.

⇒	If greater than the specified value, test the signal circuit for a short to ground. If all circuits test normal, replace the K88 advance parking assist control module.

5. If all circuits test normal, replace the S48 multi-function switch.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for parking assist control module replacement, programming and set-up