Inspection Procedure

1. Check if the connector is connected.

   OK: 

   The connector should be securely connected. 

NG: CONNECT CONNECTOR TO ECU CORRECTLY 

OK: Go to next step 

1. Disconnect the skid control ECU connector and the ECM connector.
Fig 1: Identifying Terminal NEO Of Skid Control ECU And ECM Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   RESISTANCE SPECIFIED CONDITION
   
   

   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 resistance 

   RESISTANCE SPECIFIED CONDITION
   
   

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

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Reconnect the ECM connector and the skid control ECU connector.
   Fig 2: Identifying NEO Terminal Of ECM

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check the signal waveform between terminal NEO (E6-17) of the ECM and body ground for the engine conditions below.

   Standard voltage 

   VOLTAGE SPECIFIED CONDITION
   
   

   Tester Connection	Engine Condition	Specified Condition
   E6-17 (NEO) - Body ground	OFF (Ignition switch ON)	4.5 to 14 V or below 1 V
   E6-17 (NEO) - Body ground	ON (Idling)	Pulse generation (4.5 to 14 V ↔ below 1

   Fig 3: Signal Waveform Graph Between Terminal NEO (E6-17) Of ECM And Body Ground

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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?

NO : END 

YES : REPLACE ABS AND TRACTION ACTUATOR ASSEMBLY