wiring TOYOTA CAMRY 1999 Service Repair Manual

G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
: Location of Splice Points

G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
: Location of Ground Points
: Location of Splice Points

G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
: Location of Splice Points

E5 ENGINE COOLANT TEMP. SENSOR
1±2 : Approx. 15.04 kW (±20C, ±4F)
Approx. 5.74 kW (0C, 32F)
Approx. 2.45 kW (20C, 68F)
Approx. 1.15 kW (40C, 104F)
Approx. 0.584 kW (60C, 140F)
Approx. 0.318 kW (80C, 176F)
E7 (A), E8 (B), E9 (C), E10 (D), E11 (E)
ENGINE CONTROL MODULE
Voltage at engine control module wiring connector
BATT±E1 : Always 9.0±14.0 volts
+B±E1 :9.0±14.0 volts (Ignition SW at ON position)
VC±E2 : Always 4.5±5.5 volts (Ignition SW at ON position)
VTA1±E2 :0.3±0.8 volts (Ignition SW on and throttle valve fully closed)
:3.2±4.9 volts (Ignition SW on and throttle valve fully open)
VG±E2G :1.1±1.5 volts (Engine idling and A/C SW OFF position)
THA±E2 :0.5±3.4 volts (Engine idling and intake air temp. 20°C, 68°F)
THW±E2 :0.2±1.0 volts (Engine idling and engine coolant temp. 80°C, 176°F)
IGF±E1 :4.5±5.5 volts (Ignition SW at ON position)
Pulse generation (Engine idling)
G22+±NE± : Pulse generation (Engine idling)
NE+±NE± : Pulse generation (Engine idling)
NSW±E1 :9.0±14.0 volts (Ignition SW on and other shift position in P or N position)
Below 3.0 volts (Ignition SW on and shift position in P or N position)
SPD±E1 : Pulse generation (Ignition SW on and rotate driving wheel slowly)
TC±E1 :9.0±14.0 volts (Ignition SW at ON Position)
W±E1 : Below 3.0 volts
A/C±E1 : Below 2.0 volts (Engine idling and A/C SW on)
9.0±14.0 volts (A/C SW off)
ACT±E1 :9.0±14.0 volts (Engine idling and A/C SW on)
Below 2.0 volts (A/C SW off)
ACIS±E01 :9.0±14.0 volts (Ignition SW at ON position)
STA±E1 :6.0 volts or more (Engine cranking)
THG±E2 :4.5±5.5 volts (Ignition SW at ON position)
ELS±E1 :7.5±14.0 volts (Taillight SW at ON position)
0±1.5 volts (Taillight SW at OFF position)
ELS2±E1 :7.5±14.0 volts (Defogger SW at ON position)
0±1.5 volts (Defogger SW at OFF position)
EGR±E01 :9.0±14.0 volts (Ignition SW at ON position)
FC±E1 :9.0±14.0 volts (Ignition SW at ON position)
0±3.0 volts (Engine idling)
EVP1±E01 :9.0±14.0 volts (Ignition SW at ON position)
CF±E1 :9.0±14.0 volts (Electric cooling fan is operating on high speed)
0±2.0 volts (Electric cooling fan is operating on low speed or off)
TACH±E1 : Pulse generation (Engine idling)
TPC±E1 :9.0±14.0 volts (Ignition SW on and disconnect the vacuum hose from the vapor pressure sensor)
PTNK±E1 :3.0±3.6 volts (Ignition SW at ON position)
1.3±2.1 volts (Ignition SW on and apply vacuum 2.0 kpa (15.0 mmHg, 0.6 in.Hg)
STP±E1 :7.5±14.0 volts (Ignition SW on and brake pedal depressed)
Below 1.5 volts (Ignition SW on and brake pedal released)
SIL±E1 : Pulse generation (During transmission)
RSC, RSO±E01 :9.0±14.0 volts (Ignition SW on and disconnect E 7 of engine control module connector)
KNKL, KNKR±E1 : Pulse generation (Engine idling)
HTS, HTL, HTR±E03 :9.0±14.0 volts (Ignition SW at ON position)
0±3.0 volts (Engine idling)
OXS, OXL, OXR±E1 : Pulse generation (Maintain engine speed at 2500 rpm for two minutes after warning up)
IGT1, IGT2, IGT3±E1 : Pulse generation (Engine idling)
#10, #20, #30, #40, #50, #60±E01 :9.0±14.0 volts (Ignition SW at ON position)
Pulse generation (Engine idling)
SERVICE HINTS

2. CONTROL SYSTEM
*SFI system
The SFI system monitors the engine condition through the signals, which are input from each sensor (Input signals from
(1) to (14) etc.) to the engine control module. The best fuel injection volume is decided based on this data and the
program memorized by the engine control module, and the control signal is output to TERMINALS #10, #20, #30 and
#40 of the engine control module to operate the injector. (Inject the fuel). The SFI system produces control of fuel
injection operation by the engine control module in response to the driving conditions.
*ESA system
The ESA system monitors the engine condition through the signals, which are input to the engine control module from
each sensor (Input signals from (1), (2), (4) to (12) etc.) the best ignition timing is detected according to this data and the
memorized data in the engine control module, and the control signal is output to TERMINALS IGT1 and IGT2. This
signal controls the igniter to provide the best ignition timing for the driving conditions.
*Idle Air Control system
The IAC system (Step motor type) increases the RPM and provides idling stability for fast idle±up when the engine is
cold and when the idle speed has dropped due to electrical load, etc. The engine control module evaluates the signals
from each sensor (Input signals (1), (4) to (8), (13) etc.), outputs current to TERMINALS ISCO and ISCC, and controls
the idle air control valve.
*Fuel pump control system
The engine control module operation outputs to TERMINAL FC and controls the CIR OPN relay. Thus controls the fuel
pump drive speed in response to conditions.
*EGR control system
The EGR cut control system controls the VSV (EGR) by evaluating the signals from each sensor which are input to the
engine control module (Input signals (1), (5), (6), (9) etc.) and by sending output to TERMINAL EGR of the engine
control module.
*A/C conditioning operation system
In addition to the conventional A/C cut control, the engine control module performs the air conditioning operation as well
since the A/C amplifier function is built in it.
3. DIAGNOSIS SYSTEM
With the diagnosis system, when there is a malfunctioning in the engine control module signal system, the malfunction
system is recorded in the memory. The malfunctioning system can then be found by reading the display (Code) of the
malfunction indicator lamp.
4. FAIL±SAFE SYSTEM
When a malfunction occurs in any system, if there is a possibility of engine trouble being caused by continued control based
on the signals from that system, the fail±safe system either controls the system by using data (Standard values) recorded in
the engine control module memory or else stops the engine.
E7 (A), E8 (B), E9 (C), E10 (D) ENGINE CONTROL MODULE
Voltage at engine control module wiring connector
BATT±E1 : Always 9.0±14.0 volts
+B±E1 :9.0±14.0 volts (Ignition SW at ON position)
VC±E2 :4.5± 5.5 volts (Ignition SW at ON position)
VTA±E2 :0.3± 0.8 volts (Ignition SW on and throttle valve fully closed)
3.2±4.9 volts (Ignition SW on and throttle valve open)
PIM±E2 :3.3± 3.9 volts (Ignition SW at ON position)
THA±E2 :0.5±3.4 volts (Ignition SW on and intake air temp. 20°C, 68°F)
THW±E2 :0.2± 1.0 volts (Ignition SW on and coolant temp. 80°C, 176°F)
STA±E1 :6.0±14.0 volts (Engine cranking)
W±E1 :9.0±14.0 volts (No trouble and engine running)
TE1±E1 :9.0±14.0 volts (Ignition SW at ON position)
NSW±E1 :0± 3.0 volts (Ignition SW on and Park/Neutral position SW position P or N position)
9.0±14.0 volts (Ignition SW on and except Park/Neutral position SW position P or N position)
IGT1, IGT2±E1 : Pulse generation (Engine cranking or idling)
#10, #20, #30, #40±E01, E02 :9.0±14.0 volts (Ignition SW at ON position)
RESISTANCE AT ENGINE CONTROL MODULE WIRING CONNECTORS
(Disconnect wiring connector)
VC±E2 :2.5±5.0 kW
THA±E2 :2.21±2.69 kW (Intake air temp. 20°C, 68°F)
THW±E2 :0.29±0.354 kW (Coolant temp. 80°C, 176°F)
SERVICE HINTS

J OVERALL ELECTRICAL WIRING DIAGRAM

J
[A]: System Title
[B]: Indicates the wiring color.
Wire colors are indicated by an alphabetical code.
B = Black W = White BR = Brown
L = Blue V = Violet SB = Sky Blue
R = Red O = Orange LG = Light Green
P = Pink Y = Yellow GR = Gray
G = Green
The first letter indicates the basic wire color and the
second letter indicates the color of the stripe.
Example: L ± Y
L
(Blue)Y
(Yellow)
[C]: The position of the parts is the same as shown in
the wiring diagram and wire routing.
[D]: Indicates the pin number of the connector.
The numbering system is different for female
and male connectors.
Example :
Numbered in order
from upper left to
lower rightNumbered in order
from upper right to
lower left
Female Male
The numbering system for the overall wiring
diagram is the same as above
[E]: Indicates a Relay Block. No shading is used and
only the Relay Block No. is shown to distinguish
it from the J/B.
Example : Indicates Relay Block No.1
[F]: Junction Block (The number in the circle is the
J/B No. and the connector code is shown beside
it). Junction Blocks are shaded to clearly
separate them from other parts.
3C indicates
that it is inside
Junction Block
No.3 Example:

[G]: Indicates related system.
[H]: Indicates the wiring harness and wiring harness
connector. The wiring harness with male
terminal is shown with arrows (
).
Outside numerals are pin numbers.
Female Male ( )
[I]: ( ) is used to indicate different wiring and
connector, etc. when the vehicle model, engine
type, or specification is different.
[J]: Indicates a shielded cable.
[K]: Indicates and located on ground point.
[L]: The same code occuring on the next page
indicates that the wire harness is continuous.

SYSTEM INDEX
J OVERALL ELECTRICAL WIRING DIAGRAM
SYSTEMS LOCATION SYSTEMS LOCATION
ABS
TMC Made 19±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TMMK Made 20±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ABS and Traction Control 18±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Conditioning
Automatic A/C 29±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual A/C 27±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Auto Antenna 24±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Back±Up Light 8±4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charging 1±4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cigarette Lighter and Clock 16±4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Combination Meter 25±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise Control 17±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door Lock Control 14±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electronically Controlled Transmission and A/T Indicator
1MZ±FE 4±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5S±FE 5±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Control and Engine Immobiliser System
1MZ±FE 2±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5S±FE 3±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight
w/ Daytime Running Light 7±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
w/o Daytime Running Light 6±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horn 21±4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Illumination 10±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior Light 9±3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Key Reminder and Seat Belt Warning 21±3. . . . . . . . . . . . . . . . . . . . . . . . Light Auto Turn Off 9±1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Moon Roof 21±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Outlet 16±3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Seat 22±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Source 1~29±1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Window 13±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radiator Fan and Condenser Fan 26±3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radio and Player
Built±In Type Amplifier 24±3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Separate Type Amplifier 23±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Window Defogger and Mirror Heater 26±2. . . . . . . . . . . . . . . . . . . .
Remote Control Mirror 12±4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shift Lock 16±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SRS 28±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting and Ignition 1±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stop Light 11±4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Taillight 11±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Theft Deterrent 15±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn Signal and Hazard Warning Light 8±2. . . . . . . . . . . . . . . . . . . . . . . . . .
Wiper and Washer 12±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wireless Door Lock Control 14±5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

J OVERALL ELECTRICAL WIRING DIAGRAM
1
234
2 CAMRY(
Cont. next page)
5A
IGN 2
7ACC
IG1
IG2
ST2 AM1 4
6 AM2
1F 2F1J 10 1K2
2L 42J8
1B 41B1
2A 1
1C
B1K 5
1B 51K 31C8
1W 7
2C 5 2F 42J22C102 1
3 51 1
1 1
4 EB1
5 4
M
BLAB
AA
1J 8
1J 7
IGInstrument panel
br ac e LHC
AB
B
AW± R
2K 7
EBLeft radiator
si de s uppor t1K 1
1D 2
B±G B±R B±R
B±R B±R
B W W± RB±YW± B W± BB±Y B± YR±L R±L G±R
W±B BW±B W±BBR
W B±Y
BR
G±R
G±R
B±Y BR
B±R
B±R B±Y
B± RW
B±R
1A
G±R
L±B
2 7 B± Y
D D
JUNCTI ON CONNE CT OR 45 16
W± B W± B
A
JUNCTION CONNECTOR
FUSIBLE LINK BLOCK L±B G± R
Under the lef t
center pillar BATTERY
FL
1. 25B 100A ALT
7. 5A OBD40A AM1
1 2I16
IGNI TION SW
30A AM215A EFI EFI RELAY CIR OPN RELAY
F14
FUEL
PUMP
J40
JUNCTI ON
CONNE CTORJ11
JUNCTION
CONNECTOR
C10
MALFUNCTI ON INDICATOR LAMP
[COMB. METER] J 4
JUNCTION
CONNECTOR 10A GAUGE
D 5
DA TA L I NK
CONNE CTOR 3
(
Shielded)
BAT
CG S G
BR
J
L
M
NE B
C
235 1
Engine Control and Engine Immobiliser System (
1M Z± FE)
Power Source
BR B±Y
L±W
L±W
B±Y
BR 12 38F
E1 +BTE1
I H B±R
25A A/F HTR
2
11
1
FL MAIN
3. 0WK D
1 ES1CA
ABCA
B
BBRG B±WB±R
B±W
B±R B±W
A/F HTR RELAY(
*1) JUNCTI ON
CONNE CTORB±WW± B
BW± B
B
W± B
L
B(
*1) BR
LW W
7ID1
L±B
C F 4 F 6A, FF 9 , B J35 J36A, B J 7 J 8A,
, J 8 J 7 A B 22
22
W7SIL
C
A
W W
(
Shielded)BR C C
J 3
JUNCTION CONNECTOR
CW From Airbag
Sensor Assembly< 28±4>
* 1 : Califor nia
II3 12
B±RA B±R
D 1
DATA LI NK
CONNECTOR 1
51
32
(
*1) (
*1)
(
*1)
(
*1)(
*1)
(
*1)
(
*1)
(
*1)7IK1 B±R
B±RB± R

J OVERALL ELECTRICAL WIRING DIAGRAM
9
1011 12
2 CAMRY (
Cont ' d)
10 D
P22 D
L±Y19 D
R± B
23 D
L
2DY
17 A
P
22 E
W± G
13 D
G±Y
14 D
G±B
18 D
BR
19 A
G±O
18 A
B±Y
15 A
G±W
2 EC1 4 EC1 1 EC1 3 EC1
111 2 1
2 1
1 2
28 E 27 E 16 D 24 D 10 E 9 D
WW WWB±RBRL B±W
L B±L
BR BR BR
YY
BR BR
513 3321312
Y Y
BRBR BR
BR
GR(
*4)
B±O(
*5)
ENGINE CONTROL MODULE
BRFr om Stop Li ght SW
< 11±4>
Fr om º MI RROR±HEATERº
Fuse< 26±2>
Fr om º TAI Lº Fus e
< 11±2>
E 5
ENGINE COOLANT
TEMP. SENSOR
E 1
EGR GAS TEMP.
SENSOR E 2
EGR VALVE POSITI ON
SENSOR
V 1
VAPOR PRESSURE
SENSOR
T 2
THROTTLE POSITION
SENSORM 2
MASS AIR FLOW
METER
(
Shielded)(
Shielded) (
Shielded)
(
Shielded)(
Shielded) (
Shielded)
From Park/Neutral
St ar t SW(
A/T)
or
Cl u t ch St ar t S W(
M/T)
< 1±2> C 1
CA MS HA FT P OS I T I ON
SENSOR
C 2
CRANKSHAFT POSITION
SENSOR
B±WPS STA G22+NE± NE + KNKR KNKLPT NK VCC
VG THA E2G VTA1 VC PTNK EGLS THG THW E2 ELS ELS2 STPE2
E2
VC VT A
P 2
POWE R S T EE RI NG
OI L PRESSURE SW
K 1
KNOCK SENSOR 1
K 2
KNOCK SENSOR 2
2 1
1 229 E 27 B
1II2
G±W G±W
FA FA
DBB±O B±OB±O
Fr om FAN NO. 1 Rel ay
< 26±3>To A/C Amplifier
< 27±3>
To A/ C Con tro l
Assembly< 29±8> To Tac home te r
[Comb. Meter]
< 25±5>
CF TACH
JUNCTION CONNECTOR
Engine Control and Engine Immobiliser System(
1M Z±FE)
EC Surge
t ank RH
BRE 24
BRD 17
BRE 30
BRE 31
BRE 21
A
A
A
AA
A
A
A
BR A
A
J22
JUNCTION
CONNECTORE01 E02 E03 E1 ADJ2
B
C
D
E
F
G10 C
TXCT 5C
RXCK 4C
CODE 16 C
IMLD 11 C
KSW
IE Co wl si d e
panel LH
BRE05
BRE04 4IG3 8IG315
234
G±WR±LL±Y
B±Y
BR
BR
BR
BR
BRBR
BRBRT 7
TRANSPONDER
KEY AMPLI FIER
R±Y
L±B R± Y
W± B
BR
BR
BR
B±Y BR
24
B
B
BJ26
JUNCTI ON
CONNE CTOR
B 6ID1
P
A
BR
B J27 J28A,
, E 8 E 7A B, E 9C, E10D, E11E
To Theft
Det er rent ECU
< 15±3>
To Unlock
Warning SW
< 21±3>(
*1)
(
*1)
(
*1) (
*1)
(
*1) (
*1)
* 1 : California
AB±Y
W± B
* 2 : Except California
(
*3) (
*3) (
*3)
(
*3)(
*3)
(
*3)
8D 1D
(
*5 M/T)
* 3 : w/ Engine Immobiliser System
7A
L±B
(
*2) 20 B
B±W
From º STARTERº Fuse
<1±2>NSW3II1
Y Y
2ID1 II14
BRY
BR
5ID1* 4 : TMC Made
* 5 : TMMK Made