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.

CHECK CAN COMMUNICATION SYSTEM

Check if the CAN communication system DTC is output (see DIAGNOSIS SYSTEM ).

Result

RESULT PROCEED

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

B: REPAIR CAN COMMUNICATION SYSTEM

A: GO TO NEXT STEP.

INSPECT SKID CONTROL ECU CONNECTOR
1. Check if the skid control ECU connector is properly installed.
  OK: The skid control ECU connector is properly installed.
NG: CONNECT CONNECTOR TO ECU SECURELY

OK: GO TO NEXT STEP.

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

Disconnect the A19 ECU 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	Condition	Specified Condition
A19-46 (IG1) - Body ground	Ignition switch ON	10 to 14 V

Fig 1: Identifying A19 Harness Connector (GND1/2 & IG1)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: GO TO NEXT STEP.

PERFORM ACTIVE TEST BY INTELLIGENT TESTER (ABS WARNING LIGHT)

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

Skid control ECU

ITEM REFERENCE

Item (Display)	Test Details	Diagnostic Note
ABS WARN LAMP	Turns ABS warning light / ON or OFF	Observe combination meter

OK: The ABS warning light is turned on or off.

HINT:

When the ABS warning light remains illuminated, opens in the wire harness of the combination meters or abnormalities in the meter circuit should be considered.

NG: CHECK METER / GAUGE SYSTEM

OK: REPLACE ABS AND TRACTION ACTUATOR ASSEMBLY