Engine TOYOTA RAV4 1996 Service Repair Manual

FUNCTION TEST under TROUBLE SHOOTING. If clutch switch input signal is not as specified, go to
next step. If clutch switch input signal is as specified, no problem is indicated at this time. Fault may be
intermittent. If sent here from SYMPTOM DIAGNOSIS, perform next test listed.
3. Remove cruise control ECU with connector attached. See Fig. 1
. Turn ignition switch to ON position.
Using voltmeter positive lead, backprobe cruise control ECU connector terminal No. 3 (Blue/Black wire)
with negative lead to ground. With clutch pedal depressed, battery voltage should exist. With clutch pedal
released, voltage should be less than one volt. If voltage is not as specified, go to next step. If voltage is
as specified, no problem is indicated at this time. Fault may be intermittent. If sent here from SYMPTOM
DIAGNOSIS, perform next test listed.
4. Check wiring harness and connectors between cruise control ECU and TURN & GAUGE fuses in
instrument panel junction block. Repair as necessary. If wiring harness and connectors are okay, replace
cruise control ECU and retest system.
CRUISE CONTROL ECU POWER SOURCE CIRCUIT
1. Locate ECU-IG (10-amp) fuse in instrument panel junction block. See Fig. 1
. Remove ECU-IG fuse and
ensure fuse continuity. If fuse is okay, go to next step. If fuse is not okay, check for short between cruise
control ECU connector terminal No. 9 (Black/Yellow wire) and ECU-IG fuse.
2. Remove cruise control ECU with connector attached. See Fig. 1
. Turn ignition switch to ON position.
Using voltmeter, backprobe between cruise control ECU connector terminals No. 9 (Black/Yellow wire)
and No. 16 (White/Black wire). If battery voltage is not present, go to next step. If battery voltage is
present, no problem is indicated at this time. Fault may be intermittent. If sent here from SYMPTOM
DIAGNOSIS, perform next test listed.
3. Turn ignition switch to OFF position. Backprobing connector, measure resistance between ground and
terminal No. 16 (White/Black wire) at cruise control ECU connector. If resistance is less than one ohm,
check wiring harness or connector between cruise control ECU connector and battery. Repair as
necessary and retest system. If resistance is one ohm or more, repair wiring harness or connector between
cruise control ECU connector terminal No. 16 (White/Black wire) and ground. Retest system.
CRUISE CONTROL INDICATOR LIGHT CIRCUIT
1. Turn ignition switch to ON position. Backprobing connector, measure voltage between ground and
terminal No. 4 (Green/Red wire) at cruise control ECU connector. With cruise control switch in OFF
position, battery voltage should be present. With cruise control switch in ON position, voltage should be
less than 1.2 volts.
2. If voltage is as specified, no problem is indicated at this time. Fault may be intermittent. If sent here from
SYMPTOM DIAGNOSIS, perform next test listed. If voltage is not as specified, check instrument
cluster. See appropriate INSTRUMENT PANELS article. Repair as necessary. If instrument cluster is
okay, replace cruise control ECU and retest system.
DIAGNOSTIC CIRCUIT
1. Locate Data Link Connector (DLC) No. 1 in right side of engine compartment, near shock tower.
Connect voltmeter positive lead to terminal Tc and negative lead to terminal E1. See Fig. 2
. Turn
ignition switch to ON position. If battery voltage is not present, go to next step. If battery voltage is
present, no problem is indicated at this time. Fault ma
y be intermittent. If sent here from SYMPTOM

1999 Toyota RAV4
1999 ACCESSORIES & EQUIPMENT Cruise Control Systems - RAV4
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Fig. 3: Reading Diagnostic Trouble Codes
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
RETRIEVING TROUBLE CODES
1. Codes from cruise control ECU self-diagnostic system are retrieved through Data Link Connector (DLC)
No. 1. Connector is located in right side of engine compartment, near shock tower. Turn ignition switch
to ON position. Turn cruise control main switch on. If CRUISE indicator light turns on, leave ignition on
and go to next step. If CRUISE indicator light does not turn on, check CRUISE indicator light circuit. See
CRUISE CONTROL INDICATOR LIGHT CIRCUIT
under SYSTEM TESTS.

1999 Toyota RAV4
1999 ACCESSORIES & EQUIPMENT Cruise Control Systems - RAV4
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2. Turn cruise control main switch off. Connect a jumper wire between terminals E1 and Tc at DLC No. 1.
See Fig. 2
. If any DTCs are present, perform appropriate DTC test under DIAGNOSTIC TESTS . See
DIAGNOSTIC TROUBLE CODE DEFINITIONS
table.
3. If no codes are present and CRUISE indicator light begins flashing on and off every .25 second, system is
operating normally at this time. If no codes are present and cruise control system fault still exists, perform
CRUISE CONTROL FUNCTION TEST
under TROUBLE SHOOTING.
DIAGNOSTIC TROUBLE CODE DEFINITIONS
CLEARING CODES
1. To clear codes from cruise control ECU memory, locate DLC No. 1 in right side of engine compartment,
near shock tower. Connect a jumper wire between terminals E1 and Tc at DLC No. 1. See Fig. 2
. Road
test vehicle at 9 MPH or less. Holding cruise control switch in CANCEL position, depress cruise control
ON-OFF (main) switch to ON position 5 times within 3 seconds.
2. Fault codes are now erased from cruise control ECU memory. If problem has not been corrected or fault
is still present, code will reset in cruise control ECU memory.
DIAGNOSTIC TESTS
DTC 11 OR DTC 15: ACTUATOR MOTOR CIRCUIT
1. Ensure actuator control plate is NOT in full
y opened (counterclockwise) position or fully closed
DTCCircuit Affected/Probable Cause
11 Actuator Motor Circuit, Actuator Motor Or Cruise Control ECU
12 Actuator Magnetic Clutch, STOP Fuse, Stoplight Switch, Wiring Harness Or
Cruise Control ECU
14 Actuator Motor Or Cruise Control ECU
15 Actuator Motor Circuit, Actuator Motor Or Cruise Control ECU
21 Instrument Cluster, Wiring Harness, VSS Or Cruise Control ECU
23 VSS Or Cruise Control ECU
41 (1) Cruise Control ECU
42 (1) Power Source
43 (1) Cruise Control ECU Or Wiring Harness
(1)Perform CRUISE CONTROL ECU POWER SOURCE CIRCUIT test.
CAUTION: DO NOT disconnect vehicle battery to clear codes.
NOTE: To identify cruise control ECU connector terminals, see Fig. 6
. To help identify
all other cruise control related connector terminals and wire colors, see WIRING
DIAGRAMS .

1999 Toyota RAV4
1999 ACCESSORIES & EQUIPMENT Cruise Control Systems - RAV4
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1998-99 ENGINE COOLING
Drive Belt Routing & Adjustment - Land Cruiser, RAV4, Sienna, Tacoma, T100 & 4Runner
DRIVE BELT ROUTING
Fig. 1: Identifying Drive Belt Routing (4Runner, T-100 & Tacoma)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

1999 Toyota RAV4
1998-99 ENGINE COOLING Drive Belt Routing & Adjustment - Land Cruiser, RAV4, Sienna, Tacoma, T100 & 4Runner

1999 Toyota RAV4
1998-99 ENGINE COOLING Drive Belt Routing & Adjustment - Land Cruiser, RAV4, Sienna, Tacoma, T100 & 4Runner
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Fig. 2: Identifying Drive Belt Routing (Land Cruiser)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

1999 Toyota RAV4
1998-99 ENGINE COOLING Drive Belt Routing & Adjustment - Land Cruiser, RAV4, Sienna, Tacoma, T100 & 4Runner
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Fig. 3: Identifying Drive Belt Routing (RAV4)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

1999 Toyota RAV4
1998-99 ENGINE COOLING Drive Belt Routing & Adjustment - Land Cruiser, RAV4, Sienna, Tacoma, T100 & 4Runner
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Fig. 4: Identifying Drive Belt Routing (Sienna)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
DRIVE BELT TENSION SPECIFICATIONS
Visually check the drive belt for excessive wear, frayed cords, etc. If any defect is found, replace the drive belt.
NOTE: Cracks on the rib side of a drive belt are considered acceptable. If the drive belt
has chunks missing from the ribs, it should be replaced. Using a belt tension
gauge, measure the belt tension. If the belt tension is not as specified, adjust it.

1999 Toyota RAV4
1998-99 ENGINE COOLING Drive Belt Routing & Adjustment - Land Cruiser, RAV4, Sienna, Tacoma, T100 & 4Runner
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Fig. 5: Identifying Drive Belt Damage
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
After installing a belt, check that it fits properly in the ribbed grooves. Check with your hand to confirm that the
belt has not slipped out of the groove on the bottom of the pulley. After installing a new belt, run the engine for
about 5 minutes and recheck the belt tension.
NOTE: "New belt" refers to a belt which has been used for less than 5 minutes on a
running engine. "Used belt" refers to a belt which has been used on a running
engine for 5 minutes or more.

1999 Toyota RAV4
1998-99 ENGINE COOLING Drive Belt Routing & Adjustment - Land Cruiser, RAV4, Sienna, Tacoma, T100 & 4Runner
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Fig. 6: Checking Drive Belt Alignment
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
4RUNNER, T-100 & TACOMA (1999)
BELT TENSION
LAND CRUISER
NOTE: Drive belt tension is measured using Borroughs BT-33-73F or DENSO BTG-20
belt tension gauge. See Fig. 8
.
ApplicationLbs.
Alternator
2RZ-FE & 3RZ-FE Engine
New117-170
Used66-88
5VZ-FE Engine
New140-180
Used80-120
A/C Compressor
New135-185
Used80-120
Power Steering
New135-180
Used85-120
NOTE: This vehicle is equipped with a auto tensioner. No adjustment is needed. Check
that the tension is within "A" range on the auto tensioner scale. If the tension is

1999 Toyota RAV4
1998-99 ENGINE COOLING Drive Belt Routing & Adjustment - Land Cruiser, RAV4, Sienna, Tacoma, T100 & 4Runner
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Fig. 7: Identifying Belt Tensioner Test
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
RAV4
BELT TENSION not within the "A" range on the scale, replace the belt with a new one. See Fig.
7 . When replacing the drive belt with a new one, the belt's tension should be
within the "B" range on the belt tensioner scale.
NOTE: Drive belt tension is measured using Borroughs BT-33-73F or DENSO BTG-20
belt tension gauge. See Fig. 8
.
ApplicationLbs.
Alternator
With A/C

1999 Toyota RAV4
1998-99 ENGINE COOLING Drive Belt Routing & Adjustment - Land Cruiser, RAV4, Sienna, Tacoma, T100 & 4Runner
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