cruise control TOYOTA CAMRY 1999 Service Repair Manual

AB0119
I00169
I00179
ON
TC E1
± DIAGNOSTICSCRUISE CONTROL SYSTEM
DI±363
INSPECTION PROCEDURE
1 Check voltage between terminals Tc and E1 of DLC2.
PREPARATION:
Turn ignition switch ON.
CHECK:
Measure voltage between terminals Tc and E1 of DLC2.
OK:
Voltage: 10 ± 14 V
OK Proceed to next circuit inspection shown on
problem symptoms table (See page DI±328).
NG
2 Check harness and connector between cruise control ECU and DLC2, DLC2 and
body ground (See page IN±29).
NG Repair or replace harness or connector.
OK
Check and replace cruise control ECU
(See page IN±29).

DI±364
± DIAGNOSTICSCRUISE CONTROL SYSTEM
Actuator Control Cable
INSPECTION PROCEDURE
1 Actuator control cable inspection
OK:
(a) Check that the actuator and control cable throttle link are properly installed and that the cable and link
are connected correctly.
(b) Check that the actuator and bell crank operate smoothly.
(c) Check that the cable is not loose or too tight.
OK:
Freeplay: less than 10 mm
HINT:

If the control cable is very loose, the vehicle's loss of speed going uphill will be large.

If the control cable is too tight, the idle RPM will become high.
DI092±08

EM0YV±01
A02195
Radiator Reservoir Hose
Generator Drive BeltUpper Radiator
Hose
Support BracketFront Exhaust Pipe PS Oil Pressure Switch
ConnectorBattery TrayBattery
PS Pump Drive Belt
PS Pump
Support Stay Upper Radiator Support
Lower Radiator Hose
A/C Compressor
Cylinder Block Insulator
LH Front Fender Apron Seal
Oil Cooler Hose (A/T)
Cruise Control ActuatorEVAP Hose
Air Filter Upper Radiator
Support
EVAP Hose Hood
PCV Hose
Support
Bracket  Gasket

 Non±reusable part Gasket
Clamp
N´m (kgf´cm, ft´lbf)
62 (630, 46)
56 (570, 41)

: Specified torque
Washer Hose
for Windshield
No.1 Electric
Cooling Fan
Connector
ECT Switch
Connector No.2 Electric
Cooling Fan
ConnectorRadiator
Assembly
A/C Compressor
ConnectorLower Radiator
Support
RH Front Fender
Aplon Seal
Cruise
Control
Actuator
Connector
Battery
Hold±Down
ClampAir Cleaner
Case
VSV
Connector
for EVAP
EVAP
Hose
IAT Sensor
Connector
Air
Cleaner
Cap
EM±64
± ENGINE MECHANICAL (5S±FE)ENGINE UNIT
1236 Author: Date:
ENGINE UNIT
COMPONENTS

EM08F±04
S05251
± ENGINE MECHANICAL (5S±FE)ENGINE UNIT
EM±69
1241 Author: Date:
REMOVAL
1. REMOVE HOOD
2. REMOVE FRONT FENDER APRON SEALS
3. DRAIN ENGINE COOLANT
4. DRAIN ENGINE OIL
5. DISCONNECT ACCELERATOR CABLE
6. REMOVE AIR CLEANER CAP
(a) Disconnect the IAT sensor connector.
(b) Disconnect the VSV connector for the EVAP
(c) Disconnect the PCV hose from the cylinder head cover.
(d) Disconnect the EVAP hose from the throttle body.
(e) Disconnect the EVAP hose from the VSV.
(f) Disconnect the 2 clamps, and disconnect the air cleaner
cap from the air cleaner case.
(g) Loosen hose clamp, and disconnect the air cleaner hose
from the throttle body.
(h) Remove the air cleaner cap and hose assembly.
7. REMOVE AIR CLEANER CASE
(a) Remove the air filter.
(b) Remove the 3 bolts and air cleaner case.
8. REMOVE BATTERY AND TRAY
9. REMOVE CRUISE CONTROL ACTUATOR
10. REMOVE RADIATOR (See page CO±18)
11. REMOVE FRONT EXHAUST PIPE
(a) Remove the 2 bolts holding the support stay to the sup-
port bracket.
(b) Remove the 2 bolts holding the support bracket to the
front frame.
(c) Remove the 2 bolts and 2 nuts holding the front exhaust
pipe to the center exhaust pipe.
(d) Remove the 3 nuts holding the front exhaust pipe to the
exhaust manifold.
(e) Remove the front exhaust pipe and 2 gaskets.
(f) Remove the nut and support bracket.
12. DISCONNECT CONNECTORS, WIRES, CABLES,
CLAMPS AND HOSES
(a) Disconnect the generator wire.
(b) Disconnect the generator connector.
(c) Disconnect the wire clamp from the generator.
(d) Disconnect the starter cable.
(e) Disconnect the starter connector.
(f) Disconnect the DLC1 from the bracket.

S05251
EM±80
± ENGINE MECHANICAL (5S±FE)ENGINE UNIT
1252 Author: Date:
(b) Connect the generator connector.
(c) Install the wire clamp to the generator.
(d) Connect the starter cable.
(e) Connect the starter connector.
(f) Install the DLC1 to the bracket.
(g) Install the engine wire clamp to the bracket on the RH
fender apron.
(h) Connect the MAP sensor connector.
(i) Install the wire clamp to the bracket for the MAP sensor.
(j) Connect the VSV connector for the vapor pressure sen-
sor.
(k) Connect the 2 ground strap connectors to the RH fender
apron.
(l) Connect the 2 ground strap connectors to the LH fender
apron.
(m) Install the engine wire protector clamp to the battery
bracket.
(n) Install the engine wire to the clamp on the fuel filter.
(o) Connect the ground cable to the transaxle.
(p) Connect the brake booster vacuum hose to the intake
manifold.
(q) Connect the heater hose to the water outlet.
(r) Connect the heater hose to the water bypass pipe.
(s) Connect the fuel inlet hose to the fuel filter with 2 new gas-
kets and the union bolt.
Torque: 29 N´m (300 kgf´cm, 21 ft´lbf)
(t) Connect the MAP sensor vacuum hose to the gas filter on
the intake manifold.
33. INSTALL FRONT EXHAUST PIPE
(a) Install the support bracket with the nut.
Torque: 33 N´m (330 kgf´cm, 24 ft´lbf)
(b) Temporarily install 2 new gaskets and the front exhaust
pipe with the 2 bolts and 5 nuts.
(c) Tighten the 3 nuts holding the exhaust manifold to the
front exhaust pipe.
Torque: 62 N´m (630 kgf´cm, 46 ft´lbf)
(d) Tighten the 2 bolts and 2 nuts holding the front exhaust
pipe to the center exhaust pipe.
Torque: 56 N´m (570 kgf´cm, 41 ft´lbf)
(e) Install the bracket with the 2 bolts.
Torque: 33 N´m (330 kgf´cm, 24 ft´lbf)
(f) Install the support stay with the 2 bolts.
Torque: 33 N´m (330 kgf´cm, 24 ft´lbf)
34. INSTALL RADIATOR (See page CO±23)
35. INSTALL CRUISE CONTROL ACTUATOR
36. INSTALL BATTERY TRAY AND BATTERY
37. INSTALL AIR CLEANER CASE
Install the air cleaner case with the 3 bolts.

EM04X±04
A06650
No.2 Cooling Fan Connector
Upper Radiator Support
Radiator Assembly
RH Fender
Apron
Seal
Generator
Drive
Belt
A/C Compressor
ConnectorNo.1 ECT Switch
Wire Connector
Battery
Insulator
Battery
Battery
Tray Generator Drive
Belt Adjusting
Bar Bracket
LH Fender
Apron SealA/T
Oil Cooler
Hose

Gasket A/C Compressor
43 (440, 32)
25 (250, 18)

Non±reusable partStay
N´m (kgf´cm, ft´lbf)Bracket Front Exhaust Pipe: Specified torque
Gasket
62 (630, 46)
33 (330, 24)


62 (630, 46)
33 (330, 24)

Gasket
56 (570, 41)
Actuator Cover
EGR Vacuum HoseUpper Radiator
Support
No.1 Cooling
Fan ConnectorHood
Hold±Down
Clamp
Washer
Hose for
Windshield
Air Filter
Air Cleaner Case

O±Ring Lower Radiator Support
Drain
Plug
Lower Radiator
Support
Air Cleaner
Cap Assembly
Radiator Upper Hose
Cruise Control
Actuator
Cruise Control
Actuator
Connector
Accelerator Cable
PS Pump
Radiator Lower Hose

PS Pump
Drive Belt
EVAP Hose
MAF Meter
Connector
± ENGINE MECHANICAL (1MZ±FE)ENGINE UNIT
EM±69
1355 Author: Date:
ENGINE UNIT
COMPONENTS

EM04Y±03
S05048
± ENGINE MECHANICAL (1MZ±FE)ENGINE UNIT
EM±71
1357 Author: Date:
REMOVAL
1. REMOVE BATTERY AND TRAY
2. REMOVE HOOD
3. REMOVE ENGINE FENDER APRON SEALS
4. DRAIN ENGINE COOLANT
5. DRAIN ENGINE OIL
6. DISCONNECT ACCELERATOR CABLE
7. REMOVE AIR CLEANER CAP ASSEMBLY AND AIR
CLEANER CASE
8. REMOVE CRUISE CONTROL ACTUATOR
9. REMOVE RADIATOR (See page CO±18)
10. REMOVE FRONT EXHAUST PIPE
(a) Remove the 2 bolts holding the support stay to the sup-
port bracket.
(b) Remove the 2 bolts holding the support bracket to the
front frame.
(c) Remove the 2 bolts and 2 nuts holding the front exhaust
pipe to the center exhaust pipe.
(d) Remove the 4 nuts holding the front exhaust pipe to the
exhaust manifolds.
(e) Remove the front exhaust pipe and 3 gaskets.
11. DISCONNECT CONNECTORS, CABLE, CLAMPS
AND HOSES
(a) Disconnect the igniter connector on the LH fender apron.
(b) Disconnect the noise filter connector on the LH fender
apron.
(c) Disconnect the generator wire and connector.
(d) Disconnect the starter wire and connector.
(e) Disconnect the 2 ground strap connectors from the LH
fender apron.
(f) Disconnect the 2 ground strap connectors from the RH
fender apron.
(g) Disconnect the ground cable from the battery body brack-
et.
(h) Disconnect the engine wire protector clamp from the bat-
tery body bracket.
(i) Disconnect the engine wire clamp from the bracket on the
RH fender apron.
(j) Disconnect the engine wire clamp from the bracket on the
fuel filter.

S05048
± ENGINE MECHANICAL (1MZ±FE)ENGINE UNIT
EM±79
1365 Author: Date:
(f) Connect the 2 ground strap connectors to the LH fender
apron.
(g) Connect the DLC1 to the RH fender apron.
(h) Connect the ground cable to the battery body bracket.
(i) Connect the engine wire protector clamp to the battery
body bracket.
(j) Connect the engine wire clamp to the bracket on the RH
fender apron.
(k) Connect the engine wire clamp to the bracket on the fuel
filter.
(l) Connect the brake booster vacuum hose to the air intake
chamber.
(m) Connect the engine coolant reservoir hose to the water
outlet.
(n) Connect the heater hose to the intake manifold.
(o) Connect the heater hose to the water inlet housing.
(p) Connect the fuel inlet hose to the fuel filter.
CAUTION:
Perform connecting operations of the fuel tube connector
(quick type) after observing the precautions.
(See page SF±6)
(q) Connect the purge hose to the pipe on the emission con-
trol valve set.
(r) Connect the 2 vacuum hoses to the vacuum tank for the
ACIS.
21. INSTALL FRONT EXHAUST PIPE
(a) Temporarily install 3 new gaskets and the front exhaust
pipe with the 2 bolts and 6 nuts.
(b) Tighten the 4 nuts holding the exhaust manifolds to the
front exhaust pipe.
Torque: 62 N´m (630 kgf´cm, 46 ft´lbf)
(c) Tighten the 2 bolts and 2 nuts holding the front exhaust
pipe to the center exhaust pipe.
Torque: 56 N´m (570 kgf´cm, 41 ft´lbf)
(d) Install the bracket with the 2 bolts.
Torque: 33 N´m (330 kgf´cm, 24 ft´lbf)
(e) Install the support stay with the 2 bolts.
Torque: 33 N´m (330 kgf´cm, 24 ft´lbf)
22. INSTALL RADIATOR (See page CO±24)
23. INSTALL CRUISE CONTROL ACTUATOR
24. INSTALL AIR CLEANER CAP ASSEMBLY AND AIR
CLEANER CASE
25. CONNECT ACCELERATOR CABLE
26. INSTALL ENGINE FENDER APRON SEALS
27. INSTALL BATTERY TRAY AND BATTERY

IN05Y±07
IN±20± INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
20 Author: Date:
HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS
GENERAL INFORMATION
A large number of ECU controlled systems are used in the 1999 CAMRY. In general, the ECU controlled
system is considered to be a very intricate system requiring a high level of technical knowledge and expert
skill to troubleshoot. However, the fact is that if you proceed to inspect the circuits one by one, troubleshoot-
ing of these systems is not complex. If you have adequate understanding of the system and a basic knowl-
edge of electricity, accurate diagnosis and necessary repair can be performed to locate and fix the problem.
This manual is designed through emphasis of the above standpoint to help service technicians perform ac-
curate and effective troubleshooting, and is compiled for the following major ECU controlled systems:
The troubleshooting procedure and how to make use of it are described on the following pages.
1. 5S±FE EngineDI±1
2. 1MZ±FE EngineDI±195
3. A140E Automatic TransaxleDI±387
4. A541E Automatic TransaxleDI±436
5. Anti±Lock Brake System (DENSO made)DI±491
6. Anti±Lock Brake System (BOSCH made)DI±537
7. ABS & Traction Control SystemDI±572
8. Supplemental Restraint SystemDI±624
9. Wireless Door Lock Control SystemDI±800
10.Theft Deterrent SystemDI±826
11. Cruise Control SystemDI±868
12.Engine Immobiliser SystemDI±919
FOR USING OBD II SCAN TOOL OR TOYOTA HAND±HELD TESTER

Before using the scan tool or tester, the scan tool's instruction book or tester's operator manual should
be read thoroughly.

If the scan tool or tester cannot communicate with ECU controlled systems when you have connected
the cable of the scan tool or tester to DLC3, turned the ignition switch ON and operated the scan tool,
there is a problem on the vehicle side or tool side.
(1) If communication is normal when the tool is connected to another vehicle, inspect the diagnosis
data link line (Bus
line) or ECU power circuit of the vehicle.
(2) If communication is still not possible when the tool is connected to another vehicle, the problem
is probably in the tool itself, so perform the Self Test procedures outline in the Tester Operator's
Manual.

DIAGNOSTIC TROUBLE CODE CHECK PROCEDURE
Diagnostic Trouble
Code Check (Make a
note of and then clear)Confirmation
of SymptomsDiagnostic Trouble
Code CheckProblem Condition
Diagnostic Trouble
Code DisplayProblem symptoms
existSame diagnostic
trouble code is
displayedProblem is still occurring in the diagnostic
circuit
Normal code is
displayedThe problem is still occurring in a place
other than in the diagnostic circuit
(The diagnostic trouble code displayed
first is either for a past problem or it is a
secondary problem)
No problem
symptoms existThe problem occurred in the diagnostic
circuit in the past
Normal Code DisplayProblem symptoms
existNormal code is
displayedThe problem is still occurring in a place
other than in the diagnostic circuit
No problem
symptoms existNormal code is
displayedThe problem occurred in a place other
than in the diagnostic circuit in the past
± INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMSIN±23
23 Author: Date:
2. SYMPTOM CONFIRMATION AND DIAGNOSTIC TROUBLE CODE CHECK
The diagnostic system in the 1999 CAMRY fulfills various functions. The first function is the Diagnostic
Trouble Code Check in which a malfunction in the signal circuits to the ECU is stored in code in the ECU
memory at the time of occurrence, to be output by the technician during troubleshooting. Another function
is the Input Signal Check which checks if the signals from various switches are sent to the ECU correctly.
By using these check functions, the problem areas can be narrowed down quickly and troubleshooting can
be performed effectively. Diagnostic functions are incorporated in the following systems in the CAMRY.
SystemDiagnostic Trouble
Code CheckInput Signal Check
(Sensor Check)Diagnostic Test
Mode (Active Test)
Engine (5S±FE)
Engine (1MZ±FE)
Automatic Transaxle (A140E)
Automatic Transaxle (A541E)
Anti±Lock Brake System (DENSO made)
Anti±Lock Brake System (BOSCH made)
ABS & Traction Control System
Supplemental Restraint System
Wireless Door Lock Control System
Theft Deterrent System
Cruise Control System
Engine Immobiliser System (with Check
Mode)
 (with Check
Mode)
 (with Check
Mode)
 (with Check
Mode)
















In diagnostic trouble code check, it is very important to determine whether the problem indicated by the diag-
nostic trouble code is still occurring or occurred in the past but returned to normal at present. In addition,
it must be checked in the problem symptom check whether the malfunction indicated by the diagnostic
trouble code is directly related to the problem symptom or not. For this reason, the diagnostic trouble codes
should be checked before and after the symptom confirmation to determine the current conditions, as shown
in the table below. If this is not done, it may, depending on the case, result in unnecessary troubleshooting
for normally operating systems, thus making it more difficult to locate the problem, or in repairs not pertinent
to the problem. Therefore, always follow the procedure in correct order and perform the diagnostic trouble
code check.