Inspection and verification
1. Check the customer complaint.
2. Visually inspect for obvious signs of electrical damage.
Visual inspection table
Electrical factors:
- Fuse Box(s)
- Relay
- Wiring harness
- Electrical connector(s)
- Parking assistance sensor(s)
- Parking assistance display and speaker
- Reverse light switch
- Parking assistance module
- Parking assistance module fuse insert
3. If an obvious cause for the problem you have identified or the problem described by the customer is found, correct it (if possible) before proceeding with further actions.
4. If the cause is not visually obvious, refer to the parking assist module reset procedure.
Parking Assist Module Reinstallation Procedure
1. Turn the ignition key to position 0.
2. Disconnect the parking aid module fuse.
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 parking aid module fuse link.
7. Check if the system is working properly. If the problem persists, refer to the self-diagnosis mode.
Self-diagnostic mode
1. To enter the parking assist module self-diagnosis mode, turn the ignition switch to position 0, make sure that the gear is in neutral, and remove the parking assist module fuse. For more information, refer to the Description and Operation section in this section.
2. Make sure there are no obstacles within 2 meters from the rear of the vehicle.
3. Turn the ignition key to position II and select reverse gear.
4. The self-diagnostic mode is indicated by a sequence consisting of two red LEDs turning on and a sound signal from the display unit and the speaker of the parking assistance module for three seconds with a one-second pause.
5. If a fault is detected in the parking assistance sensor, the parking assistance module indicates this by lighting the LED and by a sequence of beeps from the display unit and the parking assistance speaker.
6. If a fault is detected in several parking assistance system sensors, the second sequence is output after the first sequence.
7. To exit the self-diagnosis mode, turn the ignition key to position 0 and install the parking assistance module fuse.
| Pos. | Spare Part No | Name |
| 1 | Red LED | |
| 2 | Red LED | |
| 3 | Yellow LED | |
| 4 | Yellow LED | |
| 5 | Green LED | |
| 6 | Green LED |
NOTE: The display unit LED(s) and parking assist module speaker(s) remain illuminated continuously during the chime sequence.
Sequence of switching on LEDs and sound signals
|
LED light on |
Sequence of sound signals |
Description |
Actions |
|
LED 1 and 2 |
Three second signal, one second pause |
Initial sequence for troubleshooting |
- |
|
LED 1 |
Single on/off signal, one second pause |
Right outer sensor malfunction |
REFER to the "Checking Elements" section in the description of this procedure. |
|
LED 2 |
Twice on and off signal, one second pause |
Right internal sensor malfunction |
REFER to the "Checking Elements" section in the description of this procedure. |
|
LED 3 and 4 |
Three second signal, one second pause |
Module failure |
Proceed to PINPOINT TEST A. |
|
LED 3 |
Three times the signal is turned on and off, a second pause |
Left internal sensor malfunction |
REFER to the "Checking Elements" section in the description of this procedure. |
|
LED 4 |
Four times the signal is turned on and off, a second pause |
Left outer sensor malfunction |
REFER to the "Checking Elements" section in the description of this procedure. |
8. If the complaint is not resolved after exiting the Self-Diagnostic Mode, refer to the Malfunction Symptom Table.
Table of signs of malfunctions
|
State |
Possible Causes |
Action |
|
•LEDs 1 and 2 are lit and a continuous sound signal is emitted |
•Parking assistance system sensor(s). |
•REFER to Self-Diagnostic Mode. |
|
•The sound signal is given for three seconds followed by a three-second pause |
•Fuse insert for parking assistance module. |
•INSTALL a new parking aid module fuse insert. CHECK that the system is operating correctly. |
|
•Continuous or intermittent signal from the parking assistance speaker when reverse gear is selected. |
•The parking assist sensor(s) are covered with dirt or ice. •The parking assist sensor(s) are not installed correctly. |
•CLEAN the rear parking aid sensor(s). •INSTALL the rear parking assist sensor(s) correctly. |
|
•Parking assistance system does not work/works incorrectly |
•Parking assistance module. •Reverse light switch •Electrical circuit(s). •Display and speaker for parking assistance system. •Fuse insert for parking assistance module. |
• Proceed to PINPOINT TEST A. |