TOYOTA HIGHLANDER 2001 Service Repair Manual
Manufacturer: TOYOTA, Model Year: 2001, Model line: HIGHLANDER, Model: TOYOTA HIGHLANDER 2001Pages: 2572, PDF Size: 34.8 MB
Page 831 of 2572
05-1970
- DIAGNOSTICSWIRELESS DOOR LOCK CONTROL SYSTEM
2160 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
ONLY WIRELESS CONTROL FUNCTION IS INOPERATIVE
CIRCUIT DESCRIPTION
The door control receiver receives a signal from transmitter and sends it to body ECU by line.
And the body ECU transmits the signal to the door lock assembly to control the door lock/unlock operation.
NOTICE:
The wireless door lock control system has a function with a large-scale multiplex communication
system. First of all, inspect the communication function depending on the ºHOW TO PROCEED WITH
TROUBLESHOOTINGº, and check that the communication system has no malfunction. Then finally
proceed with the troubleshooting. Also, in case that the wire harness between the body ECU and door
control receiver has been short-circuited, diagnostic code 42 will be output and the wireless control
will not function.
INSPECTION PROCEDURE
HINT:
The initial condition that the customizing function by the hand-held tester is not chosen is shown.
1. VEHICLE'S INITIAL CONDITION (CONDITION OF WIRELESS CONTROL POSSIBLE)
(a) No key in the ignition key cylinder.
(b) All doors closed (door open indicator off).
(c) All doors locked.
HINT:
The switch described in this text is a LOCK/ UNLOCK switch for transmitting, and it is built in the door control
transmitter.
1 CHECK TRANSMITTER BATTERY SIMPLY
(a) Check that the LED of the transmitter lights up 3 times when the switch has been pressed 3 times.
HINT:
If the LED does not light up when the switch has been pressed 3 times or more, it may be caused by the
dead battery. Replace the battery with a new or normal one, and then check that doors will be locked or un-
locked by the standard operation.
NOTICE:
Standard operation means to press and hold the transmitter switch for 1 second, facing the transmit-
ter to the vehicle, in 1 m (3.28 ft) away from the driver's door outside handle in the right direction.
NG REPLACE TRANSMITTER (LITHIUM) BATTERY
OK
2 CONFIRM ROOM LAMP ON
(a) Check that the room lamp comes on.
HINT:
When the lamp does not come on, proceed with the self-diagnostic mode after repairing the room lamp.
0526W-03
Page 832 of 2572
- DIAGNOSTICSWIRELESS DOOR LOCK CONTROL SYSTEM
05-1971
2161 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
3 ENTER INTO SELF-DIAGNOSTIC MODE
(a) Enter into the self-diagnostic mode by operating the ignition switch lock cylinder.
(1) Insert the key into the ignition switch lock cylinder under the vehicle's initial condition, and then
operate the ignition switch assembly OFF "ON "OFF once within 5 seconds after the key is
pulled out.
(2) Within 30 seconds after the ignition switch assembly is turned OFF, operate the ignition switch
assembly OFF "ON "OFF 9 times.
NOTICE:
The mode returns to the normal mode if even one of the above conditions has not been met.
HINT:
The operation of the ignition switch assembly OFF "ON will finish the self-diagnostic mode.
Do not carry out the lock/unlock operations during the self-diagnostic mode.
(b) Check that the system has entered into the self-diagnostic mode by blinks of the room lamp.
NG Go to step 8
OK
Page 833 of 2572
B51906
Normal wave of lock and unlock switch is received
Discord of recognition code
No DTC is output Room Lamp Output
ON
OFF
0.25 sec. 0.5 sec.
Wave Receiving Room Lamp Output
ON
OFF
Room Lamp Output
OFF
05-1972
- DIAGNOSTICSWIRELESS DOOR LOCK CONTROL SYSTEM
2162 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
4 CHECK BY SELF-DIAGNOSTIC MODE
(a) Check the output of the DTC when the door control transmitter switch has been kept pressed
(The DTC output can be checked by the output of the room lamp).
HINT:
In case of a reception of the normal wave of the LOCK/UNLOCK switch (room lamp blinking) and no
DTC outputs (room lamp off), go to step A.
In case of discord of recognition code (room lamp on), go to step B.
B Go to step 7
A
5 CHECK THE WAVE REACHING RANGE
(a) Check that the diagnosis will be output when a new or normal door control transmitter switch for a same
type vehicle, has been pressed.
OK REPLACE TRANSMITTER SUB-ASSY MODULE
SET DOOR CONTROL
NG
Page 834 of 2572
B51930
Door Control
Receiver
W6 Wire Harness Side
- DIAGNOSTICSWIRELESS DOOR LOCK CONTROL SYSTEM
05-1973
2163 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
6 CHECK DOOR CONTROL RECEIVER
(a) Check the DOME fuse.
(b) Disconnect the W6 receiver connector.
(c) Check the voltage or continuity between the W6 receiver
wire harness side connector and body ground.
Standard:
Terminal No.Specified condition
5 - Body ground10 - 14 V
1 - Body groundContinuity
NG REPAIR OR REPLACE FUSE OR WIRE
HARNESS AND CONNECTOR
OK
REPLACE DOOR CONTROL RECEIVER
7 RE-REGISTER RECOGNITION CODE OF TRANSMITTER
(a) Check if it is possible to enter into the rewrite mode or the add mode for the recognition code registra-
tion, and if a recognition code can be registered, as well.
NG REPLACE MULTIPLEX NETWORK BODY ECU
OK
NORMAL (FUNCTION)
8 CONFIRM INPUT METHOD OF SELF-DIAGNOSTIC MODE
NG Go to step 3
OK
9 INSPECT UN-LOCK WARNING SWITCH ASSY (See page 05-1957)
NG REPLACE UN-LOCK WARNING SWITCH ASSY
OK
REPLACE MULTIPLEX NETWORK BODY ECU
Page 835 of 2572
B74777
Body ECU
PRG
RDA 17
B11
16 B11 BR
GR 15
14
10 IO2
B 3
2
5PRG
RDA
+B E
1W6
Door Control Receiver
To Battery Y
SB
IO2
IO2 B
AW-B
J19
J/C
BF A A
BBJ18
J/C
DD
R
W-B
W-B 05-1968
- DIAGNOSTICSWIRELESS DOOR LOCK CONTROL SYSTEM
2158 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC 42 WIRELESS DOOR LOCK RECEIVER
CIRCUIT MALFUNCTIONS
CIRCUIT DESCRIPTION
The door control receiver locks the doors via the wireless control by receiving and sending input/output sig-
nals from the body ECU.
DTC No.DTC Detection ConditionTrouble Area
42
In diagnostic mode, reception of applicable RDA signal is im-
possible within 1 second after PRG signal has been output
from body ECU.Wireless door control receiver
Wire harness
Body ECU
HINT:
In this circuit, the diagnostic mode means that the door open indicator inside the meter will blink by turning
the ignition switch ON after short-circuited between terminals 13 (TC) and 4 (CG) of the DLC3 by SST.
WIRING DIAGRAM
0526V-05
Page 836 of 2572
1 2 3 4 5
B51905
MULTIPLEX NETWORK BODY ECU
Door Control Receiver PRGRDA
Wire Harness Side
B11
PRGRDA
W6
- DIAGNOSTICSWIRELESS DOOR LOCK CONTROL SYSTEM
05-1969
2159 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
INSPECTION PROCEDURE
1 CHECK WIRE HARNESS
(MULTIPLEX NETWORK BODY ECU @ DOOR CONTROL RECEIVER)
(a) Disconnect the B11 ECU connector.
(b) Disconnect the W6 receiver connector.
(c) Check the continuity between the B11 ECU and W6 re-
ceiver wire harness side connectors.
Standard (OPEN):
Symbol (Terminal No.)Specified condition
RDA (B11-16) @ RDA (W6-2)Continuity
PRG (B11-17) @ PRG (W6-3)Continuity
(d) Check the continuity between the B11 ECU or W6 receiv-
er wire harness side connectors and body ground.
Standard (SHORT):
Symbol (Terminal No.)Specified condition
RDA (B11-16) or RDA (W6-2)
@ Body groundNo continuity
PRG (B11-17) or PRG (W6-3)
@ Body groundNo continuity
NG REPAIR OR REPLACE HARNESS AND
CONNECTOR
OK
2 CHECK DOOR CONTROL RECEIVER
(a) Check that the wireless system operates when connected to a new or normal door control receiver.
(b) Check if no diagnosis has been output.
Standard: No diagnosis has been output
OK REPLACE DOOR CONTROL RECEIVER
NG
REPLACE MULTIPLEX NETWORK BODY ECU
Page 837 of 2572
A87796
IAC
Valve
No. 2Valve closed (VSV: ON)
Throttle Valve30°
4,000 rpm
Engine Speed
Throttle Valve
Opening Angle
05-660
- DIAGNOSTICSSFI SYSTEM (3MZ-FE)
850 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
ACIS CONTROL CIRCUIT
CIRCUIT DESCRIPTION
The ECM opens and closes the Intake Air Control (IAC) valve No. 2 in response to engine speed (RPM/NE).
This system improves intake manifold tuning for better efficiency at low and high engine rpm. When the en-
gine speed is 4,000 rpm or less and the throttle valve opening angle is 30 or more, the ECM turns the VSV
ON to operate the IAC valve.
HINT:
ACIS stands for ºAcoustic Control Induction Systemº.
05EY4-05
Page 838 of 2572
A88701
EH FL
MainEFI NO. 2
2IK313 2D
5
3
5P-L
BatteryEFI RelayEngine Room R/B No. 2
WEngine Room J/B
1ECM
MREL
E58
E7E1 1 B
BR
A
AJ7
J/C
BR
EDACIS
E7 15
R-Y V2
VSV for IAC
Valve No. 2
12 B-R B-W1
EB1 2 2
2 1
Y
3
14EFI NO. 1
2I 2F2B
W 3
1F7
FL Block
Assy
A
J2
J/C W-B
- DIAGNOSTICSSFI SYSTEM (3MZ-FE)
05-661
851 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
WIRING DIAGRAM
Page 839 of 2572
A67588
VSV is ON VSV is OFF
Air
Port E Port F Port E
Air
Port FAir
Filter
A54315
Air
Port EAir Filter(a)
A54316
Air
Port E
Port FBattery
(b)
05-662
- DIAGNOSTICSSFI SYSTEM (3MZ-FE)
852 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
INSPECTION PROCEDURE
Hand-held tester:
1 PERFORM ACTIVE TEST USING HAND-HELD TESTER (OPERATE VSV FOR IAC
VALVE NO. 2)
(a) Disconnect the vacuum hose.
(b) Connect the hand-held tester to the DLC3.
(c) Turn the ignition switch ON and push the hand-held tes-
ter main switch ON.
(d) Enter the following menus: DIAGNOSIS / ENHANCED
OBD II / ACTIVE TEST / INTAKE CTL VSV1. Operate the
VSV.
(e) Check the VSV operation when it is operated by the
hand-held tester.
OK:
Tester OperationSpecified Condition
VSV is ONAir from port E flows out through port F
VSV is OFFAir from port E flows out through the air filter
OK Go to step 4
NG
2 CHECK VSV FOR IAC VALVE NO.2 (OPERATION)
(a) Check that air flows from port E to the air filter.
(b) Apply battery positive voltage across the terminals.
(c) Check that air flows from port E to port F.
NG REPLACE VSV
OK
Page 840 of 2572
Y
A85675
A81699A87763
Wire Harness Side
V2
VSV for IAC Valve No. 2
E7
ECM
ACIS
A85448
A90291A92391
Wire Harness Side
V2
VSV for IAC Valve No. 2
EFI Relay
Engine Room J/B
- DIAGNOSTICSSFI SYSTEM (3MZ-FE)
05-663
853 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
3 CHECK WIRE HARNESS (VSV FOR IAC VALVE NO. 2 - ECM, VSF FOR IAC VALVE
NO. 2 - EFI RELAY)
(a) Check the wire harness between the VSV and ECM.
(1) Disconnect the V2 VSV connector.
(2) Disconnect the E7 ECM connector.
(3) Check the resistance of the wire harness side con-
nectors.
Standard:
Tester ConnectionSpecified Condition
V2-2 - E7-15 (ACIS)Below 1 W
V2-2 or E7-15 (ACIS) - Body ground10 kW or higher
(b) Check the wire harness between the VSV and EFI relay.
(1) Disconnect the V2 VSV connector.
(2) Remove the EFI relay from the engine room J/B.
(3) Check the resistance of the wire harness side con-
nectors.
Standard:
Tester ConnectionSpecified Condition
V2-1 - J/B EFI relay terminal 3Below 1 W
NG REPAIR OR REPLACE HARNESS AND
CONNECTOR
OK