2001 TOYOTA SEQUOIA battery

I28460
Wire Harness View:
E4
STP ST1±
± DIAGNOSTICSCRUISE CONTROL SYSTEM
DI±1555
1749 Author: Date:
2005 SEQUOIA (RM1146U)
4 Check harness and connector (Stop light switch ± battery).
CHECK:
Measure the voltage according to the value(s) in the table below.
OK:
Tester connectionConditionSpecified condition
S14±4 ± Body groundAlways10 to 14 V
S14±2 ± Body groundIgnition SW ON10 to 14 V
NG Repair or replace harness or connector.
OK
5 Check voltage between terminals STP and ST1± of ECM connector and body
ground.
PREPARATION:
(a) Reconnect the stop light switch connector.
(b) Disconnect the ECM connector.
(c) Turn the ignition switch to the ON position.
CHECK:
Measure the voltage according to the value(s) in the table be-
low.
OK:
Tester connection
(Symbol)ConditionSpecified condition
E4±15 (STP) ±
Body groundBrake pedal depressed10 to 14 V
E4±15 (STP) ±
Body groundBrake pedal releasedBelow 1 V
E4±16 (ST1±) ±
Body groundBrake pedal depressedBelow 1 V
E4±16 (ST1±) ±
Body groundBrake pedal released10 to 14 V
NG Repair or replace harness or connector.
OK
Replace ECM (See page IN±35
).

I28462
Combination Meter
Instrument Panel J/B
I18
Ignition SWEngine Room J/BPIECM
B±O LG±R
Cruise
W±R
Battery
IG2 B±R24
32
1H 1C
AM2
62
1 IGN1
1C6
7C5 E518
1C 1J
2C2D
W±R
5
AM2B 11
B54F10
FLB
± DIAGNOSTICSCRUISE CONTROL SYSTEM
DI±1557
1751 Author: Date:
2005 SEQUOIA (RM1146U)
CRUISE main indicator light circuit
CIRCUIT DESCRIPTION
The CRUISE main indicator light comes on while the cruise control system is in operation and blinks when
there are any problems with the system.
DTCs can be read by counting the number of times the CRUISE main indicator light blinks.
WIRING DIAGRAM
DIDF3±01

DID65±01
DI±1570
± DIAGNOSTICSENGINE IMMOBILISER SYSTEM
1764 Author: Date:
2005 SEQUOIA (RM1146U)
ENGINE IMMOBILISER SYSTEM
PRECAUTION
NOTICE:
When disconnecting the battery terminal, initialize the following system after the terminal is recon-
nected.
System NameSee Page
Back Door Power Window Control SystemBE±77

DID50±01
C00083DLC3
± DIAGNOSTICSENGINE IMMOBILISER SYSTEM
DI±1575
1769 Author: Date:
2005 SEQUOIA (RM1146U)
DIAGNOSIS SYSTEM
1. DIAGNOSIS SYSTEM
(a) Inspect the battery voltage.
Battery voltage: 11 to 14 V
If voltage is below 11 V, recharge the battery before proceeding.
(b) Check the DLC3.
The transponder key ECU uses ISO 9141±2 for commu-
nication. The terminal arrangement of the DLC3 complies
with SAE J1962 and matches the ISO 9141±2 format.

I24834
F10
FL Block1J 1CInstrument Panel J/B
IG2B±R I18
Ignition SW
Battery 56
B B W±R AM22
17
IGN1
1C1E
7
3
4 5Transponder Key ECU
IG 2
2CT16
2DB±O
1B±O
W±R
1 AM2 Engine Room J/BSub J/B No. 4
212
4D 4A
± DIAGNOSTICSENGINE IMMOBILISER SYSTEM
DI±1587
1781 Author: Date:
2005 SEQUOIA (RM1146U)
Code 13 is not output
CIRCUIT DESCRIPTION
The transponder key ECU outputs DTC 13 when the ignition switch is ON.
HINT:
DTC 13 is a normal code.
DTC No.DTC Detecting ConditionTrouble Area
13Ignition switch operates normally.

Ignition switch

Transponder key ECU

Wire harness
WIRING DIAGRAM
DIABF±04

I24831
Transponder Key ECU
Sub J/B No. 3
+B
J43
J/C
51
O
BatteryF10
FL BlockW±R
B
4
IG BEngine Room J/B W±R32
1J
1E Instrument Panel J/B
A
AGND O14
T16 T16 1
2
W±R
3A 3B
81
2C
2D ECU±B
SHORT PIN
± DIAGNOSTICSENGINE IMMOBILISER SYSTEM
DI±1595
1789 Author: Date:
2005 SEQUOIA (RM1146U)
Power source circuit
CIRCUIT DESCRIPTION
This circuit provides power to operate the transponder key ECU.
WIRING DIAGRAM
DI7TO±07

DID8N±01
± DIAGNOSTICSCOMBINATION METER SYSTEM
DI±1601
1795 Author: Date:
2005 SEQUOIA (RM1146U)
COMBINATION METER SYSTEM
PRECAUTION
NOTICE:
When disconnecting the battery terminal, initialize the following system after the terminal is recon-
nected.
System NameSee Page
Back Door Power Window Control SystemBE±77

I28567
GND DI±1620
± DIAGNOSTICSCOMBINATION METER SYSTEM
1814 Author: Date:
2005 SEQUOIA (RM1146U) C6±14 ± Body ground
P ± Body groundHeight control indicator
lamp signal (LO)Height control indicator lamp LO,
Indicator light ONBelow 1 V
C6±14 ± Body groundP ± Body groundHeight control indicator
lamp signal (LO)Height control indicator lamp LO,
Indicator light OFF10 to 14 V
C6±15 ± Body groundB±L ± Body
groundHeight control indicator
lamp signal (N)Height control indicator lamp N, In-
dicator light ONBelow 1 V
C6±15 ± Body groundB±L ± Body
groundHeight control indicator
lamp signal (N)Height control indicator lamp N, In-
dicator light OFF10 to 14 V
C6±16 ± Body groundGR±R ± Body
groundHeight control indicator
lamp signal (HI)Height control indicator lamp HI, In-
dicator light ONBelow 1 V
C6±16 ± Body groundGR±R ± Body
groundHeight control indicator
lamp signal (HI)Height control indicator lamp HI, In-
dicator light OFF10 to 14 V
C6±17 (*3) ± Body groundR±G ± Body
groundHi±Beam signalHi±Beam OFFBelow 1 V
C6±17 (*3) ± Body groundR±G ± Body
groundHi±Beam signalHi±Beam ON10 to 14 V
C6±18 (*4) ± Body groundGR±L ± Body
groundHi±Beam signalHi±Beam OFFBelow 1 V
C6±18 (*4) ± Body groundGR±L ± Body
groundHi±Beam signalHi±Beam ON10 to 14 V
C6±19 ± Body groundG±B ± Body
groundTurn signal (L)Ignition switch ON, turn signal LH
indicator OFFBelow 1 V
C6±19 ± Body groundG±B ± Body
groundTurn signal (L)Ignition switch ON, turn signal LH
indicator ON10 to 14 V
C6±21 ± Body groundR±W ± Body
groundABS signalABS warning light ON6.7 to 12 V
C6±21 ± Body groundR±W ± Body
groundABS signalABS warning light OFFBelow 1 V
C6±23 ± Body groundW±R ± Body
groundBatteryAlways10 to 14 V
C6±24 ± Body groundB±O ± Body
groundIgnition switch signal (ON)Ignition switch OFFBelow 1 V
C6±24 ± Body groundB±O ± Body
groundIgnition switch signal (ON)Ignition switch ON10 to 14 V
*1: 4WD
*2: w/ Driving position memory
*3: w/o Daytime running light
*4: w/ Daytime running light
*5: 2WD
Waveform 1 (Reference):
ConditionGauge set
Engine idle speed5 V/DIV, 10 ms/DIV