Inspection Procedure

1. Exit diagnosis mode and wait for 10 seconds.
2. Disconnect the cable from the negative (-) battery terminal, and wait for 1 minute.
3. Reconnect the cable to the negative (-) battery terminal, and wait for 10 seconds.
4. Turn the ignition switch ON, and then check for the current DTC again.

   Result 

   RESULT CHART
   
   

   Result	Proceed to
   Current DTC 2-1 or 2-2 exists	A
   Historic DTC 2-1 or 2-2 exists	B

B: CLEAR HISTORIC DTC 

A: Go to next step 

1. Press the "SERVICES" button and check the LEXUS Link condition with the LEXUS Link call center.

   OK: 

   System operates normally. 

   NG: 

   Current DTC 2-1 or 2-2 exists. 

NG: REPLACE MAYDAY ECU ASSEMBLY TOGETHER WITH MAYDAY BATTERY AND THEN PERFORM REGISTRATION 

OK: END