2005 TOYOTA AVENSIS traction control

±
DIAGNOSTICS ABS WITH EBD & BA & TRC & VSC SYSTEM
05±837
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
HINT:
Start the inspection from step 1 if you are using the hand±held tester and\
start from step 2 if you are not using
the hand±held tester.
1PERFORM ACTIVE TEST BY HAND±HELD TESTER(ABS WARNING LIGHT)
(a)Check that ºONº and ºOFFº of the ABS warning light is shown on th\
e combination meter by the hand±
held tester.
OKREPLACE ABS & TRACTION ACTUATOR ASSY(See page 32±57)
NG
2 INSPECT ABS WARNING LIGHT
(a)See combination meter troubleshooting on page 71±1. NG REPAIR OR REPLACE COMBINATION METERASSEMBLY
OK
3 CHECK HARNESS AND CONNECTOR(SKID CONTORL ECU ± CMBINATION METER)
(a) Check for an open or short circuit in harness and connector between the skid \
control ECU and com-
bination meter (See page 01±32).
NG REPAIR OR REPLACE HARNESS ORCONNECTOR
OK
REPLACE ABS & TRACTION ACTUATOR ASSY(See page 32±57)

C94394
2
3
4
5
6
7
8
9
10
+
E
05±846
±
DIAGNOSTICS ABS WITH EBD & BA & TRC & VSC SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
HINT:
Start the inspection from step 1 if you are using the hand±held tester and\
start from step 2 if you are not using
the hand±held tester.
1PERFORM ACTIVE TEST BY HAND±HELD TESTER(TRC OFF INDICATOR LIGHT)
(a)Check that ºONº and ºOFFº of the TRC OFF indicator light is shown on the combinati\
on meter by the hand±held tester.
OKREPLACE ABS & TRACTION ACTUATOR ASSY(See page 32±57)
NG
2INSPECT TRC OFF INDICATOR LIGHT
(a)See combination meter troubleshooting on page 71±1. NGREPAIR OR REPLACE COMBINATION METERASSEMBLY
OK
3INSPECT TRACTION CONTROL SWITCH
(a)Remove the TRC OFF switch.
(b)Disconnect the TRC OFF switch connector.
(c)Measure resistance between terminals + and E of the TRC OFF switch when the TRC OFF switch is ON and
OFF.
OK:
TRC OFF switchResistance
Pushed inContinuity
Released1M
or higher
NGREPLACE TRACTION CONTROL SWITCH
OK
4CHECK HARNESS AND CONNECTOR(SKID CONTROL ECU ± TRC OFF SWITCH)
(a)Check for an open or short circuit in harness and connector between terminal \
CSW of the skid control ECU and TRC OFF switch (See page 01±32).
NG REPAIR OR REPLACE HARNESS ORCONNECTOR
OK

±
DIAGNOSTICS ABS WITH EBD & BA & TRC & VSC SYSTEM
05±847
AVENSIS REPAIR MANUAL (RM1018E)
5CHECK HARNESS AND CONNECTOR(SKID CONTROL ECU ± COMBINATION
METER)
(a)Check for an open or short circuit in harness and connector between the skid \
control ECU and com-
bination meter (See page 01±32).
NG REPAIR OR REPLACE HARNESS ORCONNECTOR
OK
REPLACE ABS & TRACTION ACTUATOR ASSY(See page 32±57)

±
DIAGNOSTICS ABS WITH EBD & BA & TRC & VSC SYSTEM
05±849
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
HINT:
Start the inspection from step 1 if you are using the hand±held tester and\
start from step 2 if you are not using
the hand±held tester.
1PERFORM ACTIVE TEST BY HAND±HELD TESTER(SLIP INDICATOR LIGHT)
(a)Check that ºONº and ºOFFº of the SLIP indicator light is shown on\
the combination meter by the hand±
held tester.
OKREPLACE ABS & TRACTION ACTUATOR ASSY(See page 32±57)
NG
2 INSPECT SLIP INDICATOR LIGHT
(a)See combination meter troubleshooting on page 71±1. NG REPAIR OR REPLACE COMBINATION METERASSEMBLY
OK
3 CHECK HARNESS AND CONNECTOR(SKID CONTROL ECU ± COMBINATION METER)
(a) Check for an open or short circuit in harness and connector between terminal IND of the skid control
ECU and combination meter (See page 01±32).
NG REPAIR OR REPLACE HARNESS ORCONNECTOR
OK
REPLACE ABS & TRACTION ACTUATOR ASSY(See page 32±57)

C94397
GND
IG1
±
DIAGNOSTICS ABS WITH EBD & BA & TRC & VSC SYSTEM
05±833
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1CHECK DTC FOR VSC
(a)Check the DTCs are output (See page 05±756).
YESREPAIR CIRCUIT INDICATED BY OUTPUTCODE
NO
2INSPECT SKID CONTROL ECU CONNECTOR SECURELY CONNECTED
NOCONNECT CONNECTOR TO ECU
YES
3INSPECT SKID CONTROL ECU TERMINAL VOLTAGE(IG1 TERMINAL)
WITH USING HAND±HELD TESTER:
(a)Check the voltage condition, which is output from the ECU and displayed \
on the hand±held tester. OK:
ºNormalº is displayed.
WITHOUT USING HAND±HELD TESTER:
(a)Disconnect the skid control connector.
(b)Turn the ignition switch ON.
(c)Measure the voltage between terminals IG1 and GND ofthe skid control ECU harness side connector.
OK:
Voltage: 10 to 14 V
OKREPLACE ABS & TRACTION ACTUATOR ASSY (See page 32±57)
NG
4 INSPECT BATTERY
OK:
Voltage: 10 to 14 V NG INSPECT CHARGING SYSTEM
OK

05±834
±
DIAGNOSTICS ABS WITH EBD & BA & TRC & VSC SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
5CHECK HARNESS AND CONNECTOR(DLC3 ± SKID CONTROL ECU)
(a)Check for a short circuit in harness and connector between terminal Tc of the DLC3 and skid control ECU (See page 01±32).
NG REPAIR OR REPLACE HARNESS ORCONNECTOR
OK
6 CHECK VSC WARNING LIGHT
(a)See combination meter troubleshooting on page 71±1. NG REPAIR OR REPLACE COMBINATION METERASSEMBLY
OK
7 CHECK HARNESS AND CONNECTOR(SKID CONTROL ECU ± COMBINATION METER)
(a) Check for an open or short circuit in harness and connector between the skid \
control ECU and com-
bination meter (See page 01±32).
NG REPAIR OR REPLACE HARNESS ORCONNECTOR
OK
REPLACE ABS & TRACTION ACTUATOR ASSY(See page 32±57)

±
DIAGNOSTICS ABS WITH EBD & BA & TRC & VSC SYSTEM
05±839
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
HINT:
Start the inspection from step 1 if you are using the hand±held tester and\
start from step 2 if you are not using
the hand±held tester.
1PERFORM ACTIVE TEST BY HAND±HELD TESTER(VSC WARNING LIGHT)
(a)Check that ºONº and ºOFFº of the VSC warning light is shown on th\
e combination meter by the hand±
held tester.
OKREPLACE ABS & TRACTION ACTUATOR ASSY(See page 32±57)
NG
2 INSPECT VSC WARNING LIGHT
(a)See combination meter troubleshooting on page 71±1. NG REPAIR OR REPLACE COMBINATION METERASSEMBLY
OK
3 CHECK HARNESS AND CONNECTOR(COMBINATION METER ± SKID CONTROL ECU)
(a) Check for an open or short circuit in harness and connector between the skid \
control ECU and com-
bination meter (See page 01±32).
NG REPAIR OR REPLACE HARNESS ORCONNECTOR
OK
REPLACE ABS & TRACTION ACTUATOR ASSY(See page 32±57)

C94397
GND
IG1
±
DIAGNOSTICS ABS WITH EBD & BA & TRC & VSC SYSTEM
05±829
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1CHECK DTC FOR ABS
(a)Check the DTCs are output (See page 05±756).
YESREPAIR CIRCUIT INDICATED BY OUTPUTCODE
NO
2INSPECT SKID CONTROL ECU CONNECTOR SECURELY CONNECTED
NOCONNECT CONNECTOR TO ECU
YES
3INSPECT SKID CONTROL ECU TERMINAL VOLTAGE(IG1 TERMINAL)
WITH USING HAND±HELD TESTER:
(a)Check the voltage condition, which is output from the ECU and displayed \
on the hand±held tester. OK:
ºNormalº is displayed.
WITHOUT USING HAND±HELD TESTER:
(a)Disconnect the skid control connector.
(b)Turn the ignition switch ON.
(c)Measure the voltage between terminals IG1 and GND ofthe skid control ECU harness side connector.
OK:
Voltage: 10 to 14 V
OKREPLACE ABS & TRACTION ACTUATOR ASSY (See page 32±57)
NG
4 INSPECT BATTERY
OK:
Voltage: 10 to 14 V NG INSPECT CHARGING SYSTEM
OK