Inspection Procedure

1. Check the DTC of the CAN communication system (see CAN COMMUNICATION SYSTEM ).

   Result 

   RESULT CHART
   
   

   Result	Proceed to
   DTC is not output	A
   DTC is output	B

B: GO TO CAN COMMUNICATION SYSTEM  (See CAN COMMUNICATION SYSTEM )

A: Go to next step 

1. Use the Data List to check if the main body ECU communication signal is functioning properly.

   Tilt & Telescopic: 

   TILT & TELESCOPIC DATA LIST REFERENCE
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   J/B	Communication state of main body ECU signal/OK or Interruption	OK: Communication is normal Interruption: Communication is interrupted	-

   OK: "OK" is displayed. 

NG: REPLACE MAIN BODY ECU 

OK: Go to next step 

1. Use the Data List to check if the driver seat ECU communication signal is functioning properly.

   Tilt & Telescopic: 

   TILT & TELESCOPIC DATA LIST REFERENCE
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Receive from Seat ECU	Communication state of seat ECU signal/ OK or Interruption	OK: Communication is normal Interruption: Communication is interrupted	-

   OK: "OK" is displayed. 

NG: REPLACE FRONT POWER SEAT SWITCH (DRIVER SEAT ECU)  (See REMOVAL )

OK: Go to next step 

1. Use the Data List to check if the combination meter ECU communication signal is functioning properly.

   Tilt & Telescopic: 

   TILT & TELESCOPIC DATA LIST REFERENCE
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Receive from Meter	Communication state of main body ECU signal/OK or Interruption	OK: Communication is normal Interruption: Communication is interrupted	-

   OK: "OK" is displayed. 

NG: REPLACE COMBINATION METER ASSEMBLY (COMBINATION METER ECU)  (See REMOVAL )

OK: REPLACE MULTIPLEX TILT AND TELESCOPIC ECU  (See REMOVAL  )