Inspection and verification
1. Check the customer's complaint.
2. Visually inspect for obvious signs of electrical damage.
Visual Inspection Table
Electrical factors:
- Fuse (And)
- Relay
- Wiring harness
- electrical connector (s)
- Sensor (And) parking assistance systems
- Parking assistance display and speaker
- Reversing light switch
- Parking assistance module
- Safety insert for parking aid module
3. If an obvious cause of a problem that you identified or described by the customer is found, eliminate it before proceeding with further actions (if it is possible).
4. If the cause is not visually obvious, refer to the Parking Assist Module Reinstallation Procedure.
Parking Assist Module Reinstallation Procedure
1. Turn the ignition key to position 0.
2. Detach the safety insert of the parking aid module.
3. Turn the ignition key to position II.
4. Select reverse gear, then deselect reverse gear.
5. Turn the ignition key to position 0.
6. Connect the safety plug of the parking aid module.
7. Check the correct operation of the system. If the problem persists, refer to the self-diagnosis mode.
Self-diagnosis mode
1. To enter the parking aid module self-test mode, turn the ignition key to position 0, make sure the gear is in neutral, and remove the parking aid module safety plug. For more information, refer to the section For more information, refer to the Description and principles of operation available in this section.
2. Make sure there are no obstacles within 2 meters of the rear of the vehicle.
3. Turn the ignition key to position II and select reverse gear.
4. Self-diagnosis mode is indicated by a sequence consisting of two red LEDs turning on and a beep from the display unit and parking aid module speaker for three seconds with a pause of one second.
5. If a fault is detected in the parking aid sensor, the parking aid module indicates this by turning on the LED and the sequence of beeps from the display unit and the parking aid speaker.
6. If a malfunction is detected in several sensors of the parking assistance system, after the first sequence, a second sequence is issued.
7. To exit the self-diagnostic mode, turn the ignition key to position 0 and install the safety insert of the parking aid module.
| Pos. | Spare Part No | Name |
| 1 | Red LED | |
| 2 | Red LED | |
| 3 | Yellow LED | |
| 4 | Yellow LED | |
| 5 | Green LED | |
| 6 | Green LED |
NOTE: LED (s) display unit and park assist module speaker illuminate continuously during the beep sequence.
Sequence of turning on LEDs and sound signals
|
LED on |
Beep sequence |
Description |
Actions |
|
LED 1 and 2 |
Three second beep, one second pause |
Starting sequence for troubleshooting |
- |
|
LED 1 |
One-time signal on and off, one second pause |
Right external sensor malfunction |
REFER to paragraph "Checking the elements" in the description of this procedure. |
|
LED 2 |
Two-time switching on and off the signal, a second pause |
Right Inner Sensor Malfunction |
REFER to paragraph "Checking the elements" in the description of this procedure. |
|
LED 3 and 4 |
Three second beep, one second pause |
Module failure |
Go to PINPOINT TEST A. |
|
LED 3 |
Three times turning on and off the signal, a second pause |
Malfunction of the left internal gauge |
REFER to paragraph "Checking the elements" in the description of this procedure. |
|
LED 4 |
Four times turning on and off the signal, a second pause |
Malfunction of the left external sensor |
REFER to paragraph "Checking the elements" in the description of this procedure. |
8. If the complaint persists after exiting the Self-Diagnostic Mode, refer to the Symptom Table.
Trouble symptom table
|
State |
Possible Causes |
Action |
|
•LEDs 1 and 2 are lit and a continuous beep sounds |
•Sensor (And) parking assistance systems. |
• REFER to Self-diagnosis Mode. |
|
•Beep sounds for three seconds followed by a three second pause |
• Safety insert for the parking aid module. |
• INSTALL a new parking aid module safety insert. CHECK the system is working properly. |
|
• Continuous or intermittent signal from the parking aid speaker when the reverse gear is selected. |
•Sensor (And) parking assistance systems are covered with mud or ice. •Sensor (And) parking assistance systems are not properly installed. |
•CLEAN rear sensor (And) parking assistance systems. • Correctly INSTALL rear sensor (And) parking assistance systems. |
|
•Parking assistance does not work/works incorrectly |
• Parking assistance module. • Reversing light switch •Electrical circuit (And). •Display and speaker of the parking assistance system. • Safety insert for the parking aid module. |
• Go to PINPOINT TEST A. |
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