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.
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: Checking Harness And Connector (Skid Control ECU - ECM)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step. 

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

Standard: 

Fig 2: Tester Connection Specified Condition Chart

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 3: Connecting ECM Connector And Skid Control ECU Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 4: Checking Signal Waveform 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.

Are the same DTCs recorded? 

NG: END 

HINT:

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

YES: REPLACE ABS & TRACTION ACTUATOR ASSY (SEE  REPLACEMENT  )