Inspection Procedure

WARNING: This page is about a different car, the 2007 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

PERFORM ACTIVE TEST BY INTELLIGENT TESTER (MOTOR RELAY)

Select the ACTIVE TEST, generate a control command, and then check that the ABS motor relay operates.

Skid control ECU

ITEM REFERENCE

Item	Test Details	Diagnosis Note
MOTOR RELAY	Turn ABS motor relay ON / OFF	Operation sound of motor can be heard

OK: Operation sound of ABS motor is heard.

NG: Go to step 3

OK: GO TO NEXT STEP.

RECONFIRM DTC

Clear the DTC (see DTC CHECK / CLEAR ).
Start the engine.
Drive the vehicle at a speed of 6 km/h (4 mph) or more for several seconds.

Check if the same DTC is output (see DTC CHECK / CLEAR ).

Result

RESULT PROCEED

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

B: END

A: REPLACE ABS AND TRACTION ACTUATOR ASSEMBLY

INSPECT FUSE (ABS1)
1. Remove the ABS1 H-fuse from the engine room No. 1 relay block.
2. Measure the resistance of the fuse.
  Standard resistance:
  
  Below 1 Ω
NG: REPLACE FUSE

OK: GO TO NEXT STEP.

CHECK WIRE HARNESS (SKID CONTROL ECU - BATTERY AND BODY GROUND)

Disconnect the A19 connector. (See Fig 1).

Measure the resistance of the wire harness side connector.

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Specified Condition
A19-32 (GND1) - Body ground	Below 1 Ω
A19-1 (GND2) - Body ground	Below 1 Ω

Measure the voltage of the wire harness side connector.

Standard voltage

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Specified Condition
A19-2 (BM) - Body ground	10 to 14 V

Fig 1: Identifying A19 Harness Connector (GND1/2 & +BM)

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: REPLACE ABS AND TRACTION ACTUATOR ASSEMBLY