Toyota Sequoia (2005). Manual — part 281
–
DIAGNOSTICS
ABS WITH EBD & BA & TRAC & VSC SYSTEM
DI–919
1113
2.
ACTIVE TEST
HINT:
Performing the ACTIVE TEST using the hand–held tester allows the relay, actuator, etc. to operate without
removing any parts. Performing the ACTIVE TEST as the first step of troubleshooting is one of the methods
to shorten labor time.
It is possible to display the DATA LIST during the ACTIVE TEST.
(a)
Connect the hand–held tester to the DLC3.
(b)
Turn the ignition switch to the ON position.
(c)
According to the display on the tester, perform the ACTIVE TEST.
HINT:
The Ignition switch must be turned to the ON position to proceed to the ACTIVE TEST using the hand–held
tester.
Item
Vehicle Condition / Test Details
Diagnostic Note
SFRR
Turns ABS solenoid (SFRR) ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SFRH
Turns ABS solenoid (SFRH) ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SFLR
Turns ABS solenoid (SFLR) ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SFLH
Turns ABS solenoid (SFLH) ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SRRR
Turns ABS solenoid (SRRR) ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SRRH
Turns ABS solenoid (SRRH) ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SRLR
Turns ABS solenoid (SRLR) ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SRLH
Turns ABS solenoid (SRLH) ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SRMR (SMCR, STR)
Turns TRAC solenoid (SRMR) ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SRMF (SMCF, SA3)
Turns TRAC solenoid (SRMF) ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SRCR (SA2)
Turns TRAC solenoid (SRCR) ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SRCF (SA1)
Turns TRAC solenoid (SRCF) ON / OFF
Operation of solenoid
(clicking sound) can be
heard
ABS MOT RELAY
Turns ABS motor relay ON / OFF
Operation of motor (click-
ing sound) can be heard
ABS WARN LIGHT
Turns ABS warning light ON / OFF
Observe combination me-
ter
DI–920
–
DIAGNOSTICS
ABS WITH EBD & BA & TRAC & VSC SYSTEM
1114
VSC WARN LIGHT
Turns VSC warning light ON / OFF
Observe combination me-
ter
VSC / TRC OFF IND
Turns VSC / TRAC OFF indicator ON / OFF
Observe combination me-
ter
SLIP INDI LIGHT
Turns SLIP indicator light ON / OFF
Observe combination me-
ter
BRAKE WRN LIGHT
Turns BRAKE warning light ON / OFF
Observe combination me-
ter
VSC / BR WARN BUZ
Turns VSC / BRAKE warning buzzer ON / OFF
Buzzer can be heard
SFRR & SFRH
Turns ABS solenoid SFRR & SFRH ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SFLR & SFLH
Turns ABS solenoid SFLR & SFLH ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SRH & SRR
Turns ABS solenoid SRH & SRR ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SRLR & SRLH
Turns ABS solenoid SRLR & SRLH ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SFRH & SFLH
Turns ABS solenoid SFRH & SFLH ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SRCF & SRCR
Turns ABS solenoid SRCF & SRCR ON / OFF
Operation of solenoid
(clicking sound) can be
heard
SRMF & SRMR
Turns ABS solenoid SRMF & SRMR ON / OFF
Operation of solenoid
(clicking sound) can be
heard
DI93C–06
–
DIAGNOSTICS
ABS WITH EBD & BA & TRAC & VSC SYSTEM
DI–921
1115
DIAGNOSTIC TROUBLE CODE CHART
NOTICE:
When removing parts, turn the ignition switch OFF.
When replacing the master cylinder, yaw rate and deceleration sensors and/or the ECU, make
sure to perform master cylinder, yaw rate and deceleration sensors’ zero point calibration (See
page
HINT:
Using SST 09843–18040, connect terminals Tc and CG.
If no abnormality is found when inspecting parts, inspect the ECU.
If a trouble code is displayed during the DTC check, check the circuit listed for that code. For details
of each code, turn to the page referred to under the ”See page” for respective ”DTC No.” in the DTC
chart.
DTC chart of ABS system:
DTC No.
(See Page)
Detection Item
Trouble Area
C0200/31*
1
(
)
Right front wheel speed sensor signal malfunction
C0205/32*
1
(
)
Left front wheel speed sensor signal malfunction
Right front, left front, right rear and left rear speed sensor
Each speed sensor circuit
C0210/33*
1
(
)
Right rear wheel speed sensor signal malfunction
Each s eed sensor circuit
Speed sensor rotor
Skid control ECU
C0215/34*
1
(
)
Left rear wheel speed sensor signal malfunction
C0226/21
(
)
Malfunction in ABS & VSC solenoid valves
ABS & VSC actuator
ABS & VSC solenoid circuit
C0278/11
(
)
Open or short circuit in ABS & VSC relay circuit
ABS & VSC solenoid relay
ABS & VSC solenoid relay circuit
ABS & VSC motor relay
ABS & VSC motor relay circuit
C1241/41
(
)
Low battery positive voltage or abnormally high battery positive
voltage
Battery
Charging system
Power source circuit (+BM, +BS)
Skid control ECU
C1244/44
(
)
Open or short circuit in deceleration sensor circuit
Yaw rate (deceleration) sensor
Yaw rate (deceleration) sensor circuit
C1247/47
(
)
Malfunction in delta S sensor
Delta S sensor
Delta S sensor circuit
Skid control ECU
Brake booster
C1249/49
(
)
Open circuit in stop light switch circuit
Stop light switch
Stop light switch circuit
Skid control ECU
C1251/51*
1
(
)
Pump motor is locked
Open circuit in pump motor circuit
ABS & VSC actuator
C1337/37
(
)
Some tires are different in size from the other tires
Tire size
Always ON
(
)
Malfunction in skid control ECU
Battery
Charging system
Power source circuit
ABS warning light circuit
Skid control ECU
DI–922
–
DIAGNOSTICS
ABS WITH EBD & BA & TRAC & VSC SYSTEM
1116
*
1
: As long as the following operations are not performed, the ABS warning light will not go OFF only by re-
pairing the trouble area.
(1) Drive the vehicle at 12 mph (20 km/h) for 30 seconds or more and check that the ABS warning light goes
off.
(2) Clear the DTC (See page
).
HINT:
There is a possibility that the hand–held tester cannot be used when the ABS warning light is always ON.
DTC chart of VSC system:
DTC No.
(See Page)
Detection Item
Trouble Area
C1201/51
(
)
Engine control system malfunction
Engine control system
C1202/52
(
)
Brake fluid level warning switch circuit
Brake fluid level
Brake fluid level warning switch
Brake fluid level warning switch circuit
Skid control ECU
CAN1 communication system
Translate ECU
C1203/53 *
1
(
)
Malfunction in CAN1 communication
Skid control ECU
CAN1 communication system
ECM
Translate ECU
C1207/37
(
)
Reverse gear signal failure
ECT
C1223/43
(
)
Malfunction in ABS control system
ABS control system
C1231/31
(
)
Malfunction in steering angle sensor
Steering angle sensor
Steering angle sensor communication circuit
Skid control ECU
Translate ECU
CAN communication system
C1232/32
(
)
Malfunction in deceleration sensor
Yaw rate (deceleration) sensor
Yaw rate (deceleration) sensor circuit
C1234/34
(
)
Malfunction in yaw rate sensor
Yaw rate (deceleration) sensor
Yaw rate (deceleration) sensor circuit
C1310/11
(
)
Open or short circuit in active brake booster solenoid circuit
Brake booster
Active brake booster solenoid circuit
C1311/12
(
)
Open or short circuit in brake inhibit relay circuit
Brake inhibit relay
Brake inhibit relay circuit
1335/35
(
)
Malfunction in steering angle sensor communication circuit
Steering angle sensor
Steering angle sensor communication circuit
Skid control ECU
Translate ECU
CAN1 communication system
C1340/47*
2
(
)
Center diff. lock circuit malfunction
Center diff. lock position switch
Center diff. lock position switch circuit
Center diff. lock indicator light circuit
Translate ECU
C1360/61
(
)
Malfunction in master cylinder pressure sensor
Master cylinder pressure sensor
Master cylinder pressure sensor circuit
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