TOYOTA CAMRY 1999 Service Repair Manual

ELECTRONICALLY CONTROLLED TRANSMISSION AND A/T INDICATOR
(5S±FE)
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O2 P1
(Hint : See Page 7) (Hint : See Page 7)
J25 J27 (A)
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J6BLACKJ15
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J23 J21
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J28 (B) J29
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S6 T2 V2

MEMO

CRUISE CONTROL
SPEEDOMETER
B 15 C6B14 C10 C 5
IJ1 7IJ12IG33IG25
IH4 5
CRUISE CONTROL
SW [COMB. SW]
CRUISE
CANCELSET/
COAST RESUME/
ACCEL
C12 CMS CCS
3 EP 2 1
D 10A
GAUGE FROM POWER SOURCE SYSTEM (
SEE PAGE 50)
1D 2
C 71J 1
B FBF
A D
B B D
1 DAA
10
A2 A
A
D
32DDBB3 A
10 11 12 5 4
10 4 11A
A
A
PI TC SPD CMS CCSD
W±B
R±L
R±L
R±L R±L
R±L
R±L
R±L
B±R
B±R B±R
W W±L V±W LG±RO O
LG±R
LG±R
V±WO V±WBRPL L
P
V±W
O
R±L
R±LR±L
R±L R±L
(
*1 A/T)
(
*2 A/T) (
*2) (
*1)
(
M/T)
(
M/T)
(
A/ T)
JUNCTION
CONNECTOR J24
JUNCTION
CONNECTOR J21
CRUISE CONTROL
CLUTCH SW C14
D POSITION SW
[PARK/NEUTRAL POSITION SW] P 1 JUNCTION
CONNECTOR J 4
VEHICLE SPEED SENSOR
(
COMBINATION METER) V 2
DATA LINK
CONNECTOR 2 D 4
DATA LINK
CONNECTOR 1 D 1
JUNCTION CONNECTOR J 2
JUNCTION CONNECTOR J 3
JUNCTION CONNECTOR J1 5
JUNCTION
CONNECTOR J29
JUNCTION
CONNECTOR
R±L
(
*2)
(
*1)
CRUISE CONTROL ECU C15 COMBINATION METER
BR
CRUISE(
*1)
(
*2)A/D TC TCB
SI SE
IG+II2 2
II3 11 C C 9
B, C10
B J27 A , J28
II2 9
B±R
(
A/T) LG±R
(
*4)
P±B
(
*3)

15A
ECU±IG
1J 9
E 8 B 24 B 4A6
B 115A
STOP FROM POWER SOURCE SYSTEM (
SEE PAGE 50)
1C 7
A AAAAA B A
IG1R 5
1R 4 16 15 8 2
41
4 A
C
12332
AAA
C
W± BGNDST P± IDLO OD1 S2
7 13 14 6 9
ECT B
L±B L±B Y± B L±R
L±B
B± RL±B
B±R
W W±B
R±G
R±B
G±B R±Y W±B
G± W
W
W± BJUNCTION
CONNECTOR J25
JUNCTION
CONNECTOR J12
STOP LIGHT SW S 6
ENGINE CONTROL MODULEELECTRONICALLY
CONTROLLED
TRANSMISSION
SOLENOID
J UNCTION
CONNECTOR
CRUISE CONTROL ACTUATOR C 3
G±W G±W
* 1 : 1MZ± FE
* 2 : 5S±FE
J26(
*1)
(
*2)
CRUISE CONTROL ECU C15
(
A/T)
(
A/T)
(
A/ T) (
A/T) (
A/ T)
(
*1)
(
*2) (
*1)
1J 8
1J 7
W±B W± B
M
JUNCTION CONNECTOR J11
OD
IDL
MO MC L II2 7S2
A A
A A
JUNCTION
CONNECTOR B E 3 A , E 4
E E 9 C , E11
A 3A 3
A 20A 18
C 6(
*6) C 21(
*5)
B J 7 A , J 8
J27 A * 4 : EXCEPT * 3
* 5 : 5S±FE W/ ENGINE IMMOBILISER
* 6 : 5S±FE W/O ENGINE IMMOBILISER* 3 : TMMK MADE 1MZ±FE E 7 BA, E 8 ,
,

CRUISE CONTROL
Current is applied at all times through the STOP fuse to TERMINAL 2 of the stop light SW.
With the ignition SW turned to on, current flows through the GAUGE fuse to TERMINAL (C) 7 of the combination meter and
the current through the ECU±IG fuse flows to TERMINAL 9 of the cruise control ECU.
When the ignition SW is on and the cruise control SW is turned on, a signal is input from TERMINAL 5 of the cruise control
SW to TERMINAL 11 of the cruise control ECU. As a result, the cruise control ECU functions and the current flows from the
ECU±IG fuse to TERMINAL 9 of the cruise control ECU to TERMINAL 16 to GROUND, and the cruise control system is in a
condition ready for operation.
At the same time, the current through the GAUGE fuse flows to TERMINAL (C) 7 of the cruise control indicator light to
TERMINAL (C) 10 to TERMINAL 4 of the cruise control ECU to TERMINAL 16 to GROUND, causing the cruise control
indicator light to light up, indicating that cruise control is ready for operation.
1. SET OPERATION
When the cruise control SW is turned on and the set SW is pushed with the vehicle speed within the set limit (Approx. 40
km/h, 25 mph to 200 km/h, 124 mph), a signal is input to TERMINAL 10 of the cruise control ECU and the vehicle speed at
the time the set SW is released is memorized in the ECU as the set speed.
2. SET SPEED CONTROL
During cruise control driving, the cruise control ECU compares the set speed memorized in the cruise control ECU with the
actual vehicle speed input into TERMINAL 12 of the cruise control ECU from the speed sensor, and controls the cruise
control actuator to maintain the set speed.
When the actual speed is lower than the set speed, the ECU causes the current to the cruise control actuator to flow from
TERMINAL 15 of the cruise control ECU to TERMINAL 1 of the cruise control actuator to TERMINAL 2 to TERMINAL 7 of
the cruise control ECU. As a result, the motor in the cruise control actuator is rotated to open the than the set speed, the
current to the cruise control actuator flows from TERMINAL 7 of the cruise control ECU to TERMINAL 2 of the cruise control
actuator to TERMINAL 1 to TERMINAL 15 of the cruise control ECU.
This causes the motor in the cruise control actuator to rotate to close the throttle valve and return the throttle cable to
decrease the vehicle speed.
3. COAST CONTROL
During cruise control driving, while the coast SW is on, the cruise control actuator returns the throttle cable to close the
throttle valve and decrease the driving speed. The vehicle speed when the coast SW is turned off is memorized and the
vehicle continues at the new set speed.
4. ACCEL CONTROL
During cruise control driving, while the accel SW is turned on, the cruise control actuator pulls the throttle cable to open the
throttle valve and increase the driving speed.
The vehicle speed when the accel SW is turned off is memorized and the vehicle continues at the new set speed.
5. RESUME CONTROL
Unless the vehicle speed falls below the minimum speed limit (Approx. 40km/h, 25mph) after canceling the set speed by the
cancel SW, pushing the resume SW will cause the vehicle to resume the speed set before cancellation.
6. MANUAL CANCEL MECHANISM
If any of the following operations occurs during cruise control operation, the magnetic clutch of the actuator turns off and the
motor rotates to close the throttle valve and the cruise control is released.
*Placing the shift lever except D position (Park/Neutral position SW except D position). ºSignal is not input to TERMINAL 3
of the cruise control ECUº (A/T)
*Depressing the clutch pedal (Cruise control clutch SW off). ºSignal input to TERMINAL 3 of the cruise control ECUº (M/T)
*Depressing the brake pedal (Stop light SW on). ºSignal input to TERMINAL 2 of the cruise control ECUº
*Pushing the cancel switch (Cancel SW on). ºSignal input to TERMINAL 10 of the cruise control ECUº
*Pushing the cruise switch off ºsignal input to TERMINAL 11 of the cruise control ECUº.
SYSTEM OUTLINE

7. TAP±UP CONTROL FUNCTION
When the difference between the actual vehicle speed and the set speed is less than 5 km/h (3 mph), the set speed can be
increased 1.6 km/h (1 mph) each time by operation the RESUME/ACCEL SW quickly within 0.6 seconds.
8. TAP±DOWN CONTROL FUNCTION
When the difference between the actual vehicle speed and the set speed is less than 5 km/h (3 mph), the set speed can be
lowered 1.6 km/h (1 mph) each time by operating the SET/COAST SW quickly within 0.6 seconds.
9. AUTO CANCEL FUNCTION
A) If any of the following operating conditions occurs during cruise control operation, the set speed is erased, the current
flow to the magnetic clutch is stopped and the cruise control is released. (Cruise SW turns off).
When this occurs, the ignition SW must be turned off once before the cruise SW will turn on.
*When current continued to flow to the motor inside the actuator in the throttle valve ºOPENº direction.
*The motor does not operate despite the motor drive signal being output.
B) If any of the following operating conditions occurs during cruise control operation, the set speed is erased, the current
flow to the magnetic clutch is stopped and the cruise control is released. (Cruise SW turn off).
When this occurs, the cancel state is cleared as the cruise SW will turn on again.
*Over current to transistor driving the motor and/or the magnetic clutch.
*Open circuit in the magnetic clutch.
*Momentary interruption of vehicle speed signal.
*Short circuit in the cruise control SW.
*When the vehicle speed falls more than 16 km/h (10 mph) below the set speed, E.G. on an upward slope.
C) If any of the following conditions occurs during cruise control operation, the set speed is erased and the cruise control is
released. (The power to the magnetic clutch is cut off until the set SW is ON again.)
*When the vehicle speed falls below the minimum speed limit, approx. 40 km/h (25 mph).
*When power to the cruise control system is momentarily cut off.
D) If any of the following conditions occurs during cruise control operation, the cruise control is released.
*Open the circuit for TERMINAL 2 of the stop light SW.
10. AUTOMATIC TRANSAXLE CONTROL FUNCTION
*In overdrive. If the vehicle speed becomes lower than the overdrive cut speed (Set speed minus approx. 4 km/h, 2.5 mph)
during cruise control operation, such as driving up a hill, the overdrive is released and the power increased to prevent a
reduction in vehicle speed.
*After releasing the overdrive, vehicle speed becomes higher than the overdrive return speed (Set speed minus approx. 2
km/h, 1.2 mph) and the cruise control ECU judges by the signals from the actuator's potentiometer that the upward slope
has finished, the overdrive is resumed after approximately 2 seconds.
*During cruise control driving, the cruise control operation signal is output from the cruise control ECU to the engine control
module. Upon receiving this signal, the engine control module changes the shift pattern to normal.
To maintain smooth cruise control operation (on a downward slope etc.), the lock±up release of the transmission when the
idling point of the throttle position is ON is forbidden.
C3 CRUISE CONTROL ACTUATOR
3±4 : Approx. 38.5 W
C12 CRUISE CONTROL SW [COMB. SW]
5±3 : Continuity with the CRUISE SW on
4±3 : Approx. 418 W with the CANCEL SW on
Approx. 68 W with the RESUME/ACCEL SW on
Approx. 198 W with the SET/COAST SW on
C15 CRUISE CONTROL ECU
9±GROUND :10±14 volts with the ignition SW at ON position
12±GROUND :4 pulses with 1 rotation of rotor shaft
10±GROUND : Approx. 418 W with the CANCEL SW on in the cruise control SW
Approx. 198 W with the SET/COAST SW on in the cruise control SW
Approx. 68 W with the RESUME/ACCEL SW on in the cruise control SW
16±GROUND : Always continuity
SERVICE HINTS

CRUISE CONTROL
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
C326 (1MZ±FE)E7A30J2131C328 (5S±FE)E8B30J2431
C9B30E9C30J2531
C10C30E11E30J2631
C1230J231J27A31
C1430J331J28B31
C1530J431J2931
D126 (1MZ±FE)J7A31P127 (1MZ±FE)D128 (5S±FE)J8B31P129 (5S±FE)
D430J1131S631
E3A26 (1MZ±FE)J1231V227 (1MZ±FE)
E4B28 (1S±FE)J1531V229 (5S±FE)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1C20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1D20Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
1J20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)1R20Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IG240Instrument Panel Wire and Cowl Wire (Lower Finish Panel)
IG340Instrument Panel Wire and Cowl Wire (Under the Blower Motor)
II242Engine Wire and Cowl Wire (Under the Blower Motor)II342Engine Wire and Cowl Wire (Under the Blower Motor)
IJ142Engine Wire and Instrument Panel Wire (Under the Blower Motor)
: GROUND POINTS
CodeSee PageGround Points Location
IG40Instrument Panel Brace LH
IH40Instrument Panel Brace RH

1234
12X2345678
9 10111213141516





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BLACK
C14 C15(1MZ±FE) BLACK
DARK GRAY GRAY BLACK
C3
D1
D4 E3 (A) E4 (B)C9 (B)
(TMMK Made) BROWNC10 (C)BLACKC12
(5S±FE) BLACKD1
(TMMK Made)C9 (B)(TMC Made)
(TMC Made) BROWN
C10 (C)
(* 2) (1MZ±FE)E7 (A) E8 (B)
(* 1)E7 (A)





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E9 (C)
* 1 : 5S±FE w/ Engine Immobiliser System
* 2 : 5S±FE w/o Engine Immobiliser System

CRUISE CONTROL






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FF (5S±FE w/o Engine Immobiliser System) (1MZ±FE Except California) BLACK(1MZ±FE California)
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(Hint : See Page 7)J4 J7 (A)
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J26 J25 J24
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J29 J28 (B)
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MEMO