Page 2349 of 2572

2005 HIGHLANDER (EWD592U)
325
J
FuseSystemPage
140AALT
Radiator Fan and Condenser Fan (3MZ-FE)
Starting and Ignition
Taillight
Theft Deterrent System290
66
128
208
Engine Room J/B (See Page 26)
FuseSystemPage
7.5AALT-SCharging70
7.5AECU-B
Air Conditioning (Automatic A/C)
Air Conditioning (Manual A/C)
Automatic Light Control
Charging
Combination Meter
Cruise Control (2AZ-FE)
Cruise Control (3MZ-FE)
Door Lock Control
Electronically Controlled Transmission and A/T Indicator (2AZ-FE)
Electronically Controlled Transmission and A/T Indicator (3MZ-FE)
Engine Control (2AZ-FE)
Engine Control (3MZ-FE)
Engine Immobilizer System
Front Fog Light
Headlight (w/ Daytime Running Light)
Headlight (w/o Daytime Running Light)
Interior Light
Key Reminder and Seat Belt Warning
Light Auto Turn Off System
Moon Roof
Navigation System
Power Window
SRS
Theft Deterrent System
VSC and Tire Pressure Warning System
Wireless Door Lock Control298
304
146
70
282
172
164
194
11 0
102
88
74
100
126
11 8
122
136
226
148
216
266
188
155
208
180
200
10ADOME
Combination Meter
Cruise Control (2AZ-FE)
Cruise Control (3MZ-FE)
Electronically Controlled Transmission and A/T Indicator (2AZ-FE)
Electronically Controlled Transmission and A/T Indicator (3MZ-FE)
Engine Control (2AZ-FE)
Engine Control (3MZ-FE)
Garage Door Opener
Illumination
Interior Light282
172
164
11 0
102
88
74
250
142
136
*These are the page numbers of the first page on which the related system is shown.
Page 2350 of 2572

2005 HIGHLANDER (EWD592U)
326
J POWER SOURCE (Current Flow Chart)
FuseSystemPage
10ADOME
Key Reminder and Seat Belt Warning
Navigation System
Theft Deterrent System
VSC and Tire Pressure Warning System
Wireless Door Lock Control226
266
208
180
200
10AH-LP LH UPRHeadlight (w/ Daytime Running Light)
Headlight (w/o Daytime Running Light)11 8
122
10AH-LP RH UPRHeadlight (w/ Daytime Running Light)
Headlight (w/o Daytime Running Light)11 8
122
10AHORNHorn
Theft Deterrent System242
208
15AHAZARDTrailer Towing
Turn Signal and Hazard Warning Light152
130
15ASECURITYTheft Deterrent System208
20AEFI NO.1
Cruise Control (2AZ-FE)
Cruise Control (3MZ-FE)
Electronically Controlled Transmission and A/T Indicator (2AZ-FE)
Electronically Controlled Transmission and A/T Indicator (3MZ-FE)
Engine Control (2AZ-FE)
Engine Control (3MZ-FE)172
164
11 0
102
88
74
20APOWER OUTLET2Power Outlet246
20ATOWINGTrailer Towing152
25ADOOR LOCK
Door Lock Control
Theft Deterrent System
Wireless Door Lock Control194
208
200
25ARAD NO.1Audio System (6 Speaker)
Audio System (8 Speaker)280
272
40AMAIN
Automatic Light Control
Headlight (w/ Daytime Running Light)
Headlight (w/o Daytime Running Light)
Light Auto Turn Off System
Theft Deterrent System146
11 8
122
148
208
instrument Panel J/B (See Page 28)
FuseSystemPage
7.5AIG1
Automatic Glare-Resistant EC Mirror
Automatic Light Control
Back-Up Light
Cruise Control (2AZ-FE)
Cruise Control (3MZ-FE)
Door Lock Control
Electronically Controlled Transmission and A/T Indicator (2AZ-FE)
Electronically Controlled Transmission and A/T Indicator (3MZ-FE)
Front Fog Light264
146
134
172
164
194
11 0
102
126
*These are the page numbers of the first page on which the related system is shown.
Page 2351 of 2572

2005 HIGHLANDER (EWD592U)
327
J
FuseSystemPage
7.5AIG1
Headlight (w/ Daytime Running Light)
Headlight (w/o Daytime Running Light)
Interior Light
Key Reminder and Seat Belt Warning
Light Auto Turn Off System
Mirror Heater and Front Deicer
Moon Roof
Navigation System
Power Outlet
Power Window
Seat Heater
SRS
Theft Deterrent System
Trailer Towing
Turn Signal and Hazard Warning Light
Wireless Door Lock Control11 8
122
136
226
148
254
216
266
246
188
256
155
208
152
130
200
7.5AOBDEngine Control (2AZ-FE)
Engine Control (3MZ-FE)88
74
7.5APANELIllumination142
7.5ARAD NO.2
Air Conditioning (Automatic A/C)
Air Conditioning (Manual A/C)
Audio System (6 Speaker)
Audio System (8 Speaker)
Automatic Light Control
Door Lock Control
Headlight (w/ Daytime Running Light)
Headlight (w/o Daytime Running Light)
Interior Light
Key Reminder and Seat Belt Warning
Navigation System
Power Window
Remote Control Mirror
Shift Lock
Theft Deterrent System
Wireless Door Lock Control298
304
280
272
146
194
11 8
122
136
226
266
188
240
232
208
200
10AECU-IG
Charging
Navigation System
Shift Lock
Theft Deterrent System
VSC and Tire Pressure Warning System70
266
232
208
180
10AHEATER
Air Conditioning (Automatic A/C)
Air Conditioning (Manual A/C)
Charging
Combination Meter298
304
70
282
*These are the page numbers of the first page on which the related system is shown.
Page 2352 of 2572

2005 HIGHLANDER (EWD592U)
328
J POWER SOURCE (Current Flow Chart)
FuseSystemPage
10AHEATER
Cruise Control (2AZ-FE)
Cruise Control (3MZ-FE)
Electronically Controlled Transmission and A/T Indicator (2AZ-FE)
Electronically Controlled Transmission and A/T Indicator (3MZ-FE)
Engine Control (2AZ-FE)
Engine Control (3MZ-FE)
Interior Light
Key Reminder and Seat Belt Warning
Mirror Heater and Front Deicer
Navigation System
Radiator Fan and Condenser Fan (2AZ-FE)
Radiator Fan and Condenser Fan (3MZ-FE)
Rear Heater
Rear Window Defogger
SRS
VSC and Tire Pressure Warning System172
164
11 0
102
88
74
136
226
254
266
294
290
312
252
155
180
10AIGN
Combination Meter
Cruise Control (2AZ-FE)
Cruise Control (3MZ-FE)
Electronically Controlled Transmission and A/T Indicator (2AZ-FE)
Electronically Controlled Transmission and A/T Indicator (3MZ-FE)
Engine Control (2AZ-FE)
Engine Control (3MZ-FE)
Engine Immobilizer System
SRS
VSC and Tire Pressure Warning System282
172
164
11 0
102
88
74
100
155
180
10ATAIL
Front Fog Light
Taillight
Trailer Towing126
128
152
15ACIGCigarette Lighter244
15AIG2
Engine Control (2AZ-FE)
Engine Control (3MZ-FE)
Starting and Ignition88
74
66
15APWR OUTLET1Power Outlet246
15ARR WIPRear Wiper and Washer224
15ASEAT HTRSeat Heater256
20AD RR DOORPower Window188
20AFR DEFMirror Heater and Front Deicer254
20AFR FOGFront Fog Light126
20AP FR DOOR
Door Lock Control
Interior Light
Power Window194
136
188
*These are the page numbers of the first page on which the related system is shown.
Page 2353 of 2572
2005 HIGHLANDER (EWD592U)
329
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20AP FR DOORTheft Deterrent System
Wireless Door Lock Control208
200
20AP RR DOORPower Window188
20AS/ROOFMoon Roof216
20ASTOP
Cruise Control (2AZ-FE)
Cruise Control (3MZ-FE)
Electronically Controlled Transmission and A/T Indicator (2AZ-FE)
Electronically Controlled Transmission and A/T Indicator (3MZ-FE)
Engine Control (2AZ-FE)
Engine Control (3MZ-FE)
Shift Lock
Stop Light
Trailer Towing
VSC and Tire Pressure Warning System172
164
11 0
102
88
74
232
132
152
180
20AWASHERFront Wiper and Washer
Rear Wiper and Washer220
224
25AD FR DOORInterior Light
Power Window136
188
25AWIPERFront Wiper and Washer220
30APOWERPower Seat (Driver's Seat)
Power Seat (Front Passenger's Seat)234
238
40AAM1Power Outlet
Starting and Ignition246
66
*These are the page numbers of the first page on which the related system is shown.
Page 2358 of 2572

05H3Y-02
F45096
USA:
Canada:USA:
Canada: ABS Warning Light BRAKE Warning
Light
VSC Warning Light SLIP Indicator Light
TRAC OFF Indicator Light
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
05-765
955 Author: Date:
PRE-CHECK
1. DIAGNOSIS SYSTEM
(a) Check the warning lights.
(1) Release parking brake lever.
NOTICE:
When releasing the parking brake, set the chocks to hold
the vehicle for safety.
HINT:
When the parking brake is applied or the level of the brake fluid
is low, the BRAKE warning light comes on.
(2) When the ignition switch is turned to the ON posi-
tion, check that the ABS warning light, BRAKE
warning light, VSC warning light, TRAC OFF indica-
tor light and SLIP indicator light remain on for
approx. 3 seconds.
HINT:
If the ECU has any stored DTCs, the ABS warning light,
VSC warning light and TRAC OFF indicator light come on.
If the indicator does not come on, inspect if the bulb is
blown out, and also the wire harness between the skid
control ECU and the combination meter.
If the indicator remains on, proceed to troubleshooting for
the light circuit below.
Trouble AreaSee page
ABS warning light circuit05-840 or
05-844
VSC warning light circuit05-847 or
05-851
BRAKE warning light circuit05-854
TRAC OFF indicator light circuit05-859
SLIP indicator light circuit05-863
Page 2359 of 2572

C52361
DLC3
Tc
CG
R01346
Normal Blinking
Code 11 and 21 ON
OFF
4 sec.0.5 sec.
1.5 sec.
2.5 sec.0.5 sec. 2 sec.
0.25 sec.
0.25 sec.
ON
OFF
Code 11 Code 21 05-766
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
956 Author: Date:
2. DTC CHECK/CLEAR (USING SST CHECK WIRE)
(a) Check DTCs.
(1) Using SST, connect terminals Tc and CG of the
DLC3.
SST 09843-18040
(2) Turn the ignition switch to the ON position.
(3) Read the DTC from the ABS warning light or VSC
warning light on the combination meter.
HINT:
If 2 or more malfunctions are detected at the same time,
the lowest numbered code will be displayed first.
If no code appears, inspect the diagnostic circuit, ABS
warning light circuit or VSC warning light circuit.
Trouble AreaSee page
Tc and CG terminal circuit05-868
ABS warning light circuit05-840 or
05-844
VSC warning light circuit05-847 or
05-851
As an example, the blinking patterns for a normal system
code and codes 11 and 21 are shown on the left.
(4) Codes are explained in the code table on page
05-779.
(5) After completing the check, disconnect terminals Tc
and CG of the DLC3, and turn off the display.
Page 2360 of 2572

BR3890
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
05-767
957 Author: Date:
(b) Clear DTCs.
(1) Using SST, connect terminals Tc and CG of the
DLC3.
SST 09843-18040
(2) Turn the ignition switch to the ON position.
(3) Clear the DTCs stored in the ECU by depressing the
brake pedal 8 or more times within 5 sec.
(4) Check that the ABS warning light and VSC warning
light shows normal blinking patterns.
(5) Remove the SST from the DLC3.
SST 09843-18040
HINT:
Cancellation cannot be preformed by removing the battery
cable or the ECU-IG fuse.
3. DTC CHECK/CLEAR (USING HAND-HELD TESTER)
(a) Check DTCs.
(1) Connect the hand-held tester to the DLC3.
(2) Turn the ignition switch to the ON position.
(3) Read the DTCs following the prompts on the tester
screen.
HINT:
Refer to the hand-held tester operator's manual for further de-
tails.
(b) Clear the DTCs.
(1) Connect the hand-held tester to the DLC3.
(2) Turn the ignition switch to the ON position.
(3) Operate the hand-held tester to erase the codes.
HINT:
Refer to the hand-held tester operator's manual for further de-
tails.
4. DATA LIST
HINT:
According to the DATA LIST displayed on the Hand-held tester, you can read the value and status of the
switch, sensor, actuator and so on without parts removal. Reading the DATA LIST as a first step of trouble-
shooting is one of the methods to shorten the labor time.
(a) Connect the Hand-held tester to the DLC3.
(b) Turn the ignition switch ON.
(c) From the display on the tester, read the ºDATA LISTº.
*: 2WD only
ItemMeasurement Item /
Range (Display)Normal ConditionDiagnostic Note
ABS MOT RELAYABS motor relay / ON or
OFFON : Motor relay ON-
SOL RELAYSolenoid relay / ON or
OFFON : Solenoid relay ON-
VSC / TRC OFF SW*TRAC control switch / ON
or OFFON : TRAC control switch ON-
IDLE SWMain idle switch / ON or
OFF
ON : Accelerator pedal re-
leased
OFF : Accelerator pedal
depressed
-