7903007

1.

IG "OFF".

2.

IG "ON".

3.

Connect GDS and select "Diagnostic Trouble Codes(DTCs)" mode.

4.

Using a GDS, Clear DTC.

5.

Select "Diagnostic Trouble Codes(DTCs)" mode again.

6.

Are any DTCs present ?

▶ Substitute with a known-good EPB ECU and check for proper operation.

If the problem is corrected, replace EPB ECU and then go to "Verification of Vehicle Repair" procedure.

▶ This fault may be intermittently caused by poor connection in the EPB ECU or HECU connector or was repaired and HECU memory was not cleared. Go to "Verification of Vehicle Repair" procedure.