Page 912 of 3115
F02201
DLC1
E
1
Ts
BR3904
0.13 sec. 0.13 sec.
ON
OFF
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEMDI-517
710 Author: Date:
2004 LAND CRUISER (RM1071U)
(c) Perform a deceleration sensor zero point calibration.
NOTICE:
After step (b) (a yaw rate sensor zero point calibration), the
VSC warning light goes off. At this time, if the vehicle is
driven without performing step (c) (a deceleration sensor
zero point calibration), deceleration sensor zero point cal-
ibration malfunction will be detected and the VSC warning
light will light up. Therefore, perform step (c) right after step
(b).
(1) Using SST, connect terminals Ts and E
1 of the
DLC1.
SST 09843-18020
(2) Turn the ignition switch ON.
HINT:
Keep the vehicle in a stationary condition with the shift lever in
the P position.
(3) After turning the ignition switch ON, check that the
VSC warning light is lit for about 4 sec. and then
starts quick blinking at 0.13 sec. intervals.
(4) After ensuring the blinking of the VSC warning light
for 2 sec., turn the ignition switch OFF.
(5) Remove the SST and disconnect terminals Ts and
E1 of the DLC1.
SST 09843-18020
Page 1026 of 3115
A04550
9 1011 12 13141516 12345678
DLC3 DI-362
- DIAGNOSTICSAUTOMATIC TRANSMISSION
555 Author: Date:
(b) Inspect the DLC3.
The vehicle's ECM uses ISO 9141-2 for communication.
The terminal arrangement of DLC3 complies with SAE
J1962 and matches the ISO 9141-2 format.
Tester connectionConditionSpecified condition
7 (Bus Line) - 5 (Signal ground)During communicationPulse generation
4 (Chassis Ground) - BodyAlways1 W or less
5 (Signal Ground) - BodyAlways1 W or less
16 (B+) - BodyAlways9 to 14 V
HINT:
If your display shows UNABLE TO CONNECT TO VEHICLE
when you have connected the cable of the OBD II scan tool or
hand-held tester to the DLC3, turned the ignition switch ON
and operated the scan tool, there is a problem on the vehicle
side or tool side.
If the communication is normal when the tool is connected
to another vehicle, inspect the DLC3 on the original ve-
hicle.
If the communication is still impossible when the tool is
connected to another vehicle, the problem is probably in
the tool itself, so consult the Service Department listed in
the tool's instruction manual.
(c) Inspect the battery voltage.
Battery Voltage: 11 to 14 V
If voltage is below 11 V, recharge the battery before proceeding.
(d) Check the MIL.
(1) The MIL comes on when the ignition switch is turned
ON and the engine is not running.
HINT:
If the MIL does not light up, troubleshoot the combination meter
(See page BE-63).
(2) When the engine is started, the MIL should go off.
If the lamp remains on, it means that the diagnosis
system has detected a malfunction or abnormality
in the system.
Page 1028 of 3115
F06425
Hand-held tester
DLC3
FI3605
ON
OFF
0.13 SecondFlashing
DI-364
- DIAGNOSTICSAUTOMATIC TRANSMISSION
557 Author: Date:
3. Check Mode:
DTC CHECK
HINT:
Hand-held tester only:
Compared to the normal mode, the check mode has more sens-
ing ability to detect malfunctions. Furthermore, the same diag-
nostic items which are detected in the normal mode can also be
detected in the check mode.
(a) Procedure for Check Mode using the hand-held tester.
(1) Check the initial conditions.
Battery positive voltage 11 V or more
Throttle valve fully closed
Transmission in P or N position
A/C switched OFF
(2) Turn the ignition switch OFF.
(3) Connect the hand-held tester to the DLC3.
(4) Turn the ignition switch ON.
(5) Switch the hand-held tester from the normal mode
to the check mode (Check that the MIL flashes).
NOTICE:
If the hand-held tester switches the ECM from the normal
mode to the check mode or vice-versa, or if the ignition
switch is turned from ON to ACC or OFF during the check
mode, the DTC and freeze frame data will be erased.
(6) Start the engine (MIL goes off after the engine
starts).
(7) Simulate the conditions of the malfunction de-
scribed by the customer.
NOTICE:
Leave the ignition switch ON until you have checked the
DTCs, etc.
(8) After simulating the malfunction conditions, use the
hand-held tester diagnosis selector to check the
DTCs and freeze frame data, etc.
HINT:
Be sure not to turn the ignition switch OFF, as turning it OFF
switches the diagnosis system from the check mode to the nor-
mal mode, which erases all the DTCs, etc.
(9) After checking the DTC, inspect the applicable cir-
cuit.
(b) When using the OBD II scan tool or hand-held tester:
Clearing the DTCs.
(1) Connect the OBD II scan tool or hand-held tester
to DLC3.
(2) Turn the ignition switch ON.
Page 1040 of 3115
DI-376
- DIAGNOSTICSAUTOMATIC TRANSMISSION
569 Author: Date:
14. MECHANICAL SYSTEM TESTS
(a) Measure the stall speed.
The object of this test is to check the overall performance of the transmission and engine by measuring
the stall speeds in the D and R positions.
NOTICE:
Do the test at normal operating fluid temperature 70 to 80 °C (158 to 176 °F).
Do not continuously run this test longer than 5 seconds.
To ensure safety, conduct this test in a wide, clear level area which provides good traction.
The stall test should always be carried out in pairs. One technician should observe the condi-
tions of wheels or wheel stoppers outside the vehicle while the other is doing the test.
(1) Chock all 4 wheels.
(2) Connect an OBD II scan tool or hand-held tester to DLC3.
(3) Fully apply the parking brake.
(4) Keep your left foot pressing firmly on the brake pedal.
(5) Start the engine.
(6) Shift into the D position. Press all the way down on the accelerator pedal with your right foot.
Quickly read the stall speed at this time.
Stall speed: 2,150 ± 150 rpm
(7) Do the same test in R position.
Stall speed: 2,150 ± 150 rpm
Evaluation:
ProblemPossible cause
(a) Engine stall speed low in D and R positions
Engine output may be insufficient
Stator one-way clutch is not operating properly
HINT: If the value is less than the specified value by 600 rpm or
more, the torque converter could be faulty.
(b) Engine stall speed high in D position
Line pressure too low
Clutch No. 1 (C
1) slipping
One-way clutch No.3 (F
3) not operating properly
(c) Engine stall speed high in R position
Line pressure too low
Brake No. 4 (B
4) slipping
Clutch No. 3 (C
3) slipping
One-way clutch No.1 (F
1) not operating properly
(d) Engine stall speed high in D and R positionsLine pressure too low
Improper fluid level
Page 1068 of 3115
- DIAGNOSTICSCRUISE CONTROL SYSTEM
DI-995
1188 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
HINT:
In case of using the hand-held tester, start the inspection from step 1 and in case of not using the hand-held
tester, start from step 2.
1 Check stop light switch using hand-held tester.
PREPARATION:
Connect the hand-held tester to the DLC3.
(a) Connect the hand-held tester to the DLC3.
(b) Turn the ignition switch ON and push the hand-held tester main SW ON.
CHECK:
Select the item ºSTOP LIGHT SWº in the DATA LIST and read its valve displayed.
OK:
Brake pedal depressed: ON
Brake pedal released: OFF
OK Proceed to next circuit inspection shown in
problem symptom table (See page DI-991).
NG
2 Check operation of stop light.
CHECK:
Check that stop light comes on when brake pedal is depressed, and turns off when brake pedal is released.
NG Check stop light system (See page BE-49).
OK
Page 1081 of 3115
I24838
(1) (3)
I24838
(2), (7) (1), (4)
(1), (4) DI-986
- DIAGNOSTICSCRUISE CONTROL SYSTEM
1179 Author: Date:
2004 LAND CRUISER (RM1071U)
Pull the cruise control switch to CANCEL
(e) Inspect the RESUME switch.
(1) Push the main switch button to ON.
(2) Drive at a desired speed [40 km/h (25 mph) or high-
er].
(3) When operating one of the followings, check that
the cruise control system is cancelled and that the
normal driving mode is reset.
Depress the brake pedal
Shift to except D position
Press the main switch button to OFF
(4) After the control switch is pulled up to +/RES at the
driving speed of more than 40 km/h (25 mph), check
that the vehicle restores the speed before the can-
cellation.
6. INPUT SIGNAL CHECK
HINT:
For check No.1 - No. 3
Turn the ignition switch to ON.
For check No. 4
Jack up the vehicle.
Start the engine.
Shift to D position
(a) Check the input signal
(1) Keep the main switch to -/SET or +/RES position
and hold it down or hold it up.
(2) Press the switch button to ON.
(3) Check that the CRUISE mainindicator light blinks
twice or 3 times repeatedly after 3 seconds.
(4) Turn the -/SET or +/RES switch to OFF.
(5) Operate each switch as listed in the table below.
(6) Read the blinking pattern of the CRUISE main indi-
cator light.
(7) After performing the check, turn the main switch
button to OFF.
Page 1142 of 3115
- DIAGNOSTICSENGINE
DI-93
286 Author: Date:
2004 LAND CRUISER (RM1071U)
5 Check if DTC output recur.
PREPARATION:
(a) Clear the DTC (See page DI-3).
(b) Start the engine.
(c) Run the engine at idle for 15 seconds or more.
CHECK:
Read the DTC (See page DI-3).
RESULT:
Display (DTC Output)Proceed to
ºP0120, P0122, P0123, P0220, P0222, P0223 and/or P2135º are output
againA
No DTC outputB
B System is OK.
A
Replace ECM (See page SF-60).
Page 1145 of 3115
DI-96
- DIAGNOSTICSENGINE
289 Author: Date:
2004 LAND CRUISER (RM1071U)
4 Check if DTC output recur.
PREPARATION:
(a) Clear the DTC (See page DI-3).
(b) Start the engine.
(c) Run the engine at idle for 15 seconds or more.
CHECK:
Read the DTC (See page DI-3).
RESULT:
Display (DTC Output)Proceed to
ºP0120, P0122, P0123, P0220, P0222, P0223 and/or P2135º are output
againA
No DTC outputB
B System is OK.
A
Replace ECM (See page SF-60).
