CAUTION: Diagnostics by substituting a component from another vehicle is NOT permitted. Substituting control modules does not guarantee confirmation of the fault and, in addition, may cause additional faults in the vehicle being tested and/or in the vehicle from which the modules are removed.
1. Visually inspect for obvious signs of damage and system integrity.
NOTE: Particular attention should be paid to the following items for which DTCs may not be recorded:
- Check for contamination (e.g. dirt, dust, ice) around the parking assist sensors. If this problem exists, refer to the parking assist section of your vehicle's owner's manual.
- Check the correct installation and alignment of the sensors relative to the bumper.
- When the front system is operating uphill or downhill, false detection of an obstacle may occur.
Electrical factors:
- Fuse Box (s)
- Relay
- Wiring harness
- Electrical connector(s)
- Front Parking Assist Sensor(s) and Holders
- Rear Parking Aid Sensor(s) and Holders
- Audio system For further information, refer to: Infotainment system (415-01 Infotainment system, Diagnostics and testing).
- Parking assist switch and indicator
- Parking assistance module
2. If an obvious cause for the problem you identified or the customer described is found, correct it (if possible) before moving on to further action.
3. If the cause is not visually obvious, check for DTCs and refer to the Index diagnostic trouble codes (DTC).
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