Circuit/System Verification

Ignition ON.
Verify DTC B390A 08 or DTC B390A 45 is not set.
- If either DTC is set
1. Program the appropriate B233 Radar Sensor Module - Short Range.
2. Verify DTC B390A 08 or DTC B390A 45 is not set after programming.
  - If either DTC sets after programming, replace the appropriate B233 Radar Sensor Module - Short Range.
  - Go to next step: If the DTC does not set
3. All OK.
- Go to next step: If both DTCs are not set
Verify DTC B390A 54 is not set.
- If the DTC is set
  Replace the appropriate B233 Radar Sensor Module - Short Range.
- Go to next step: If the DTC is not set
Verify DTC B390A 58 is not set.
- If DTC is set
1. Verify the area in front of the sensor is clean, unobstructed, and damage-free.
  - If not clean, unobstructed, and damage-free, clean or repair as necessary.
  - Go to next step: If clean, unobstructed, and damage-free
2. Replace the appropriate B233 Radar Sensor Module - Short Range.
- Go to next step: If DTC is not set
Verify DTC B390A 67 is not set.
- If the DTC is set in more than one B233 Radar Sensor Module - Short Range
1. Verify none of the B233 Radar Sensor Module - Short Range have not been swapped side to side.
  - If any B233 Radar Sensor Module - Short Range have been swapped, return them to their original position.
  - Go to next step: If none of the B233 Radar Sensor Module - Short Range have been swapped
2. Replace the appropriate B233 Radar Sensor Module - Short Range.
- If the DTC is set in only one B233 Radar Sensor Module - Short Range
  Refer to Circuit/System Testing
- Go to next step: If the DTC is not set
All OK.