Diagnostic Procedure

Perform the self-diagnosis. Refer to "SELF-DIAGNOSTIC RESULT MODE ", "DIAGNOSTIC PROCEDURE WITHOUT CONSULT-II ".

Is a malfunction in the CAN communication indicated in the results? 

Yes: Check CAN communication line. Refer to "DTC U1000 CAN COMMUNICATION LINE ".

NO: GO TO 2.

With CONSULT-II 

1. Turn ignition switch ON.
2. Select "ECU INPUT SIGNALS" in "DATA MONITOR" mode for "A/T" with CONSULT-II.
3. Read out ON/OFF switching action of the "BRAKE SW".
   CONSULT-II REFERENCE VALUE CHART
   
   

   Item name	Condition	Display value
   BRAKE SW	Depressed brake pedal.	ON
   	Released brake pedal.	OFF

   Fig 1: Accelerator Pedal Operation And Monitor Item Chart

   

OK or NG 

OK: INSPECTION END 

NG: GO TO 3.

Check continuity between stop lamp switch harness connector terminals. Refer to "WIRING DIAGRAM - AT - NON DTC ".

Fig 2: Measuring Continuity Between Stop Lamp Switch Harness Connector Terminals

Check stop lamp switch after adjusting brake pedal -  Refer to "BRAKE PEDAL ".

OK or NG 

OK: Check the following. If NG, repair or replace damaged parts.

• Harness for short or open between battery and stop lamp switch.
• Harness for short or open between stop lamp switch and unified meter and A/C amp.
• 10A fuse (No.20, located in fuse block).

NG: Repair or replace the stop lamp switch.