Inspection Procedure

1. Disconnect the skid control ECU connector S1 and the ECM connector E6.
2. Measure the resistance according to the value (s) in the table below.

   Standard: 

   TESTER CONNECTION SPECIFIED CONDITION (1 OF 2)
   
   

   Tester Connection	Specified Condition
   S1-10 (NEO) -E6-17 (NEO)	Below 1 Ω

3. Measure the resistance according to the value (s) in the table below.

   Standard: 

   TESTER CONNECTION SPECIFIED CONDITION (2 OF 2)
   
   

   Tester Connection	Specified Condition
   S1-10 (NEO) -Body ground	10 kΩ or higher

   Fig 1: Disconnecting Skid Control ECU Connector S1 And ECM Connector E6

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to Next Step. 

1. Reconnect the ECM connector E6 and the skid control ECU connector S1.
2. Check the signal waveform between terminal NEO (E6-17) of the ECM and body ground for the engine conditions below.

   OK: A waveform similar to the illustration below is output. 

   Fig 2: Tester Connection Specified Condition Chart

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   Fig 3: Reconnecting ECM Connector E6 And Skid Control ECU Connector S1

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   Fig 4: Checking Signal Waveform Between Terminal NEO Of ECM And Body Ground

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. NG: REPLACE ECM 

OK: Go to Next Step. 

1. Clear the DTCs (see DTC CHECK/CLEAR  ).
2. Turn the ignition switch to the ON position.
3. Are the same DTCs recorded? (see DTC CHECK/CLEAR  )

1. NO: END 

   HINT:

   This DTC may be memorized due to a malfunction in the connector terminal.

YES: REPLACE BRAKE ACTUATOR ASSY (SEE  REPLACEMENT  )