Inspection Procedure

NOTE: When replacing the ABS & TRACTION actuator assy, perform zero point calibration (see CALIBRATION ).

HINT:

Start the inspection from step 1 when using the hand-held tester and start from step 2 when not using the hand-held tester.

PERFORM ACTIVE TEST BY HAND-HELD TESTER (ABS MOTOR RELAY OPERATION)

Connect the hand-held tester to the DLC3.
Start the engine.
Select the ACTIVE TEST mode on the hand-held tester.
Check the operation sound of the ABS motor individually when operating it with the hand-held tester.

DATA LIST

Item	Vehicle Condition / Test Details	Diagnostic Note
ABS MOT RELAY	ABS motor relay / ON or OFF	Operation of motor (clicking sound) can be heard

OK: The operation sound of the ABS motor should be heard.

NG: Go to step 2

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

INSPECT FUSE (ABS NO.2 FUSE)
1. Remove the ABS No.2 fuse from the engine room R/B.
2. Measure the resistance according to the value (s) in the table below.
Standard:
CONTINUITY

ABS No.2 fuse Below 1 Ω (Continuity)

Fig 1: Removing ABS No.2 Fuse From Engine Room R/B
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: CHECK FOR SHORT IN ALL HARNESS AND CONNECTOR CONNECTED TO FUSE AND REPLACE FUSE

OK: Go to next step.

CHECK TERMINAL VOLTAGE (ABS CUT RELAY 5 TERMINAL OF ABS R/B)

Remove the ABS cut relay from the ABS R/B.
Measure the voltage according to the value (s) in the table below.

Standard:

TESTER CONNECTION SPECIFIED CONDITION (1 OF 6)

Tester Connection	Condition	Specified Condition
Terminal 5 - Body ground	Always	10 to 14 V

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

Fig 2: Removing ABS Cut Relay From ABS R/B

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step.

INSPECT ABS CUT RELAY

Remove the ABS cut relay.
Measure the resistance according to the value (s) in the table below.

Standard:

TESTER CONNECTION SPECIFIED CONDITION (2 OF 6)

Tester Connection	Connection	Specified resistance
3 - 5	Always	10 kΩ or higher (No continuity)
3 - 5	Apply B+ between terminals 1 and 2	Below 1 Ω

NG: REPLACE ABS CUT RELAY

Fig 3: Removing ABS Cut Relay

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step.

INSPECT ABS R/B (ABS MOTOR RELAY - ABS CUT RELAY)

Remove the ABS motor relay and ABS cut relay from the ABS R/B.
Measure the resistance according to the value (s) in the table below.

Standard:

TESTER CONNECTION SPECIFIED CONDITION (3 OF 6)

Tester Connection	Specified Condition
5 (ABS motor relay) - 3 (ABS cut relay)	Below 1 Ω

NG: REPAIR OR REPLACE ABS R/B

OK: Go to next step.

Fig 4: Removing ABS Motor Relay And ABS Cut Relay From ABS R/B

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT ABS MOTOR RELAY

Remove the ABS motor relay.
Measure the resistance according to the value (s) in the table below.

Standard:

TESTER CONNECTION SPECIFIED CONDITION (4 OF 6)

Tester Connection	Connection	Specified resistance
3 - 5	Always	10 kΩ or higher (No continuity)
3 - 5	Apply B+ between terminals 1 and 2	Below 1 Ω

NG: REPLACE ABS MOTOR RELAY

Fig 5: Removing ABS Motor Relay

OK: Go to next step.

CHECK HARNESS AND CONNECTOR (ABS MOTOR RELAY - SKID CONTROL ECU)

Disconnect the skid control ECU connector and ABS motor relay.

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

Standard:

TESTER CONNECTION SPECIFIED CONDITION (5 OF 6)

Tester Connection	Specified Condition
S1-2 (BM) - ABS motor relay 3 (ABS R/B)	Below 1 Ω

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

Standard:

TESTER CONNECTION SPECIFIED CONDITION (6 OF 6)

Tester Connection	Specified Condition
S1-2 (BM) - Body ground	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

Fig 6: Disconnecting Skid Control ECU Connector And ABS Motor Relay

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