DTC Troubleshooting: B2477
  1. Check for continuity between the headlight leveling control unit 16P connector No. 4 terminal and body ground.
Is there continuity?
YES -
Replace the headlight leveling control unit .■
NO -
Repair an open in the wire.■
  1. Check the parameter of the rear suspension stroke sensor with the HDS.
Is less than 0.4 V indicated?
YES -
Go to Step 16 .
NO -
Go to Step 23 .
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect the rear suspension stroke sensor 3P connector.
  1. Disconnect the headlight leveling control unit 16P connector.