( TF09E8FK738000Y2477FAAT00 )
DTC Troubleshooting: B2477
DTC B2477:
 Rear Height Sensor Failure
  1. Clear the DTCs with the HDS.
  1. Turn the ignition switch to LOCK (0) and then back to ON (II).
  1. Check for DTCs with the HDS.
Is DTC B2477 indicated?
YES -
Go to Step 4 .
NO -
Intermittent failure, the system is OK at this time.■
  1. Check for DTCs with the HDS.
Is DTC B2476 also indicated with the DTC B2477?
YES -
Go to Step 10 .
NO -
Go to Step 5 .
  1. Measure the voltage between the headlight leveling control unit 16P connector No. 4 and No. 7 terminals.
Is there less than 0.4 V?
YES -
Go to Step 6 .
NO -
Go to Step 27 .
  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.
  1. Check for continuity between the headlight leveling control unit 16P connector No. 4, No. 7 and No. 13 terminals and the rear headlight leveling sensor 3P connector No. 3, No. 2 and No. 1 terminals individually.
Is there continuity?
YES -
Replace the rear suspension stroke sensor .■
NO -
Repair an open in the wire.■
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect the front suspension stroke sensor 3P connector.
  1. Turn the ignition switch to ON (II).
  1. Clear the DTCs with the HDS.
  1. Turn the ignition switch to LOCK (0) and then back to ON (II).
  1. Check for DTCs with the HDS.
Is only DTC B2476 indicated?
YES -
Replace the front suspension stroke sensor .■
NO -
Go to Step 16 .
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect the rear suspension stroke sensor 3P connector.
  1. Turn the ignition switch to ON (II).
  1. Clear the DTCs with the HDS.
  1. Turn the ignition switch to LOCK (0) and then back to ON (II).
  1. Check for DTCs with the HDS.
Is only DTC B2477 indicated?
YES -
Replace the rear suspension stroke sensor .■
NO -
Go to Step 22 .
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect the headlight leveling control unit 16P connector.
  1. Check for continuity between the headlight leveling control unit 16P connector No. 13 terminal and body ground.
Is there continuity?
YES -
Repair a short in the wire.■
NO -
Go to Step 25 .
  1. Check for continuity between the headlight leveling control unit 16P connector No. 13 terminal and the rear suspension stroke sensor 3P connector No. 1 terminal.
Is there continuity?
YES -
Go to Step 26 .
NO -
Repair an open in the wire.■
  1. Check for continuity between the headlight leveling control unit 16P connector No. 4 terminal and the rear suspension stroke sensor 3P connector No. 3 terminal.
Is there continuity?
YES -
Replace the headlight leveling control unit .■
NO -
Repair an open in the wire.■
  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.
  1. Check for continuity between the rear suspension stroke sensor 3P connector No. 1 and No. 2 terminals.
Is there continuity?
YES -
Repair a short in the wire.■
NO -
Replace the rear suspension stroke sensor .■