1986 TOYOTA LAND CRUISER ignition

F02201
DLC1
E
1
Ts DI-516
- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
709 Author
: Date
:
2004 LAND CRUISER (RM1071U)
8. IF NECESSARY, PERFORM ZERO POINT CALIBRA-
TION OF YAW RATE AND DECELERATION SENSORS
HINT:

When having replaced the yaw rate sensor, deceleration
sensor or/and the ECU, make sure to perform a yaw rate
and deceleration sensors zero point calibration.

This operation is also required when the deceleration
sensor or yaw rate sensor has been replaced since the
calibrated zero point of both sensors will be erased.
NOTICE:

While obtaining the zero point, do not vibrate the ve-
hicle by tilting, moving or shaking it and keep it in a
stationary condition. (Do not start the engine.)

Be sure to do this on a level surface (within an inclina-
tion of 1 %).
(a) Clear the zero point of the yaw rate and deceleration sen-
sors.
(1) Shift the shift lever to P range.
(2) Turn the ignition switch ON in a stationary condition.
(3) With the ignition switch ON, using SST, repeat a
cycle of short and open between terminals Ts and
E
1 of the DLC1 4 times or more within 8 sec. Check
that the VSC warning light is lit indicating the re-
corded zero point is erased.
SST 09843-18020
(4) Turn the ignition switch OFF.
(b) Obtain the zero point of the yaw rate sensor.
(1) Disconnect terminals Ts and E
1 of the DLC1.
(2) Turn the ignition switch ON.
HINT:
The vehicle should be in a stationary condition with the shift le-
ver in the P position.
(3) Check that the lighted VSC warning light goes off
about 15 sec. after the ignition switch is turned ON.
HINT:
Even if the ignition is not turned OFF in step (a)-(4) and remains
ON, a yaw rate sensor zero point calibration can be completed.
In this case, the VSC warning light is lit about 15 sec. and starts
blinking. (Normal code)
(4) After ensuring that the VSC warning light remains
OFF for 2 sec., turn the ignition switch OFF.
HINT:
If the ignition switch is not turned OFF in step (a)-(4), ensure
the blinking of the VSC warning light for 2 sec. and turn the igni-
tion switch OFF.

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

DIC91-01
DI-526- DIAGNOSTICSABS & VEHICLE STABILITY CONTROL (VSC) &
BRAKE ASSIST (BA) SYSTEM
719 Author
: Date
:
2004 LAND CRUISER (RM1071U)
PROBLEM SYMPTOMS TABLE
If a normal code is displayed during the DTC check but the problem still occurs, check the circuits for each
problem symptom in the order given in the table below and proceed to the relevant troubleshooting page.
NOTICE:
When replacing the skid control ECU, sensor, etc., turn the ignition switch OFF.
SymptomSuspected AreaSee page
ABS does not operate
BA does not operate
Only when 1. to 4. are all normal and the problem is still
occurring, replace the skid control ECU.
1. Reconfirm the DTC and check that the normal code is
output.
2. IG power source circuit
3. Speed sensor circuit
4. Check the hydraulic brake booster with a checker or
hand-held tester.
If abnormal, check the hydraulic circuit for leakage (See
page DI-655).
DI-505
DI-558
DI-615
BR-40
ABS does not operate efficiently
BA does not operate
Only when 1. to 4. are all normal and the problem is still
occurring, replace the skid control ECU.
1. Reconfirm the DTC and check that the normal code is
output.
2. Speed sensor circuit
3. Stop light switch circuit
4. Check the hydraulic brake booster with a checker or
hand-held tester.
If abnormal, check the hydraulic circuit for leakage (See
page DI-655).
DI-505
DI-615
DI-573
BR-40
ABS warning light abnormal1. ABS warning light circuit
2. Skid control ECUDI-627
IN-36
DTC check cannot be done
Only when 1. to 4. are all normal and the problem is still
occurring, replace the skid control ECU.
1. ABS warning light circuit
2. VSC OFF indicator light, center diff. lock indicator switch
circuit
3. Center diff. lock indicator switch circuit
4. Tc terminal circuit
DI-627
DI-645
DI-612
DI-651
Speed sensor signal check cannot be done1. Ts terminal circuit
2. Skid control ECUDI-653
IN-36
TRAC does not operate
Only when 1. to 4. are all normal and the problem is still
occurring, replace the skid control ECU.
1. Check the DTC, reconfirming that the normal code is
output.
2. IG power source circuit
3. Check the hydraulic circuit for leakage.
4. Speed sensor circuit
DI-505
DI-558
DI-655
DI-615
VSC does not operate
Only when 1. to 7. are all normal and the problem is still
occurring, replace the skid control ECU.
1. Check the DTC, reconfirming that the normal code is
output.
2. IG power source circuit
3. Check the hydraulic circuit for leakage.
4. Speed sensor circuit
5. Deceleration sensor circuit
6. Yaw rate sensor circuit
7. Steering angle sensor circuit
DI-505
DI-558
DI-655
DI-615
DI-570
DI-553
DI-605

D12771
ECM
PWR E829 J/B No.4
E4
(*) Electronically Controlled
Transmission Pattern Select SW
5
W-B
IF IU19
SB Combination Meter
C1519
Cowl Side J/B LH
L-R
1
2
3 C1520
SB312
4F 4C
W-BB
B
E8
E8
E818
28 2nd
PWR
5L-W 10
3M
3PCowl Side J/B RH
18
2E66 24
2E 2QP-B
SNWI MPX1 MPX2
(*) Pattern Select Switch (2nd Start Switch)
When the 2nd start switch is pushed, the switch contact is made and the 2nd mode is selected.
To cancel the 2nd start, push the 2nd start switch once again. The 2nd start is automatically cancelled
out when the ignition switch is turned OFF. DI-498
- DIAGNOSTICSAUTOMATIC TRANSMISSION
691 Author
: Date
:
2004 LAND CRUISER (RM1071U)
WIRING DIAGRAM

- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-403
596 Author
: Date
:
2004 LAND CRUISER (RM1071U)
P0850:
Related DTCsP0850Park/neutral position switch/Verify switch cycling
Rid /C tMainPark/neutral position switchRequired sensors/ComponentsSubCrankshaft position sensor (NE), MAF meter
Frequency of operationContinuous
Duration30 sec.
MIL operation2 driving cycles
Sequence of operationNone
TYPICAL ENABLING CONDITIONS
P0705:
ItSpecificationItemMinimumMaximum
The monitor will run whenever the follow-
ing DTCs are not present.See page DI-361
Ignition switchON
Battery voltage10.5 V or more
P0850:
ItSpecificationItemMinimumMaximum
The monitor will run whenever the follow-
ing DTCs are not present.See page DI-361
Vehicle speed70 km/h (43 mph) or more-
Engine speed1,500 rpm or more2,500 rpm or less
Intake air amount per revolution0.9 g/rev. or more-

D12758
B-RB-W
B-W
2 391
IG1 No. 3 Relay
STAR To Starter Relay
A
7
39 SB LL2L DL7
R-LG-W
GAUGE2If1
ALT
Battery1
2C2EI18
Ignition SW
B-R 12 IN2
IG1 1310
J/B No. 6
3P
3QSB
3C6D
3M4
4 5
2 4
2Q6
Ib2185C
GPECM
E6
E5
E9
E8R
D
2 N NSW
Shift Lock Control ECU
6
B-G5D
2
6C 8
6
II 109
R-B
AM111
20
9 16
17 J17
J/C
33M
3M
3M 3P
3P
3P
3E
2E6C6D 6D
AM137 77
1Cowl Side J/B LH
L-B
2 J/B No. 2J/B No. 3 FL Block
1
1
F16 F17B-G141
3 Cowl Side J/B RH
G-R R-L G-B G-Y
A48A48 A48 A48 R-L 14R-L
3
RBNL RL PL
1
G-BE8 E8E8 E9
3 1913
5
6 11
12
13
34
17
27
28
30
20
16 6D6D6D 6D
6C 6C 6C6C 6C 6C 6CA A
B-W
69 P1
Park/Neutral Position SW
G-Y G-R To Body ECUG-W
1
G-W
IX1
1
R-B R-BG-W
G
G-B G-Y G-R
R-L
G-R8
23
1 3
5L
4 E8E8 G-W J/B No. 5
NSSD
NSSL
AT L
AT 41
6
12
8G-B G-Y NP
To ABS & BA &
TRAC & VSC ECU
DI-406
- DIAGNOSTICSAUTOMATIC TRANSMISSION
599 Author
: Date
:
2004 LAND CRUISER (RM1071U)
WIRING DIAGRAM

D06561
1
6 7 82 3 4 5
9
- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-407
600 Author
: Date
:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
HINT:
According to the DATA LIST displayed by the OBD ll scan tool or Hand-held tester, you can read the value
of the switch, sensor, actuator and so on without parts removal. Reading the DATA LIST as a first step of
troubleshooting is one method to shorten labor time.
(a) Warm up the engine.
(b) Turn the ignition switch OFF.
(c) Connect the OBD ll scan tool or Hand-held tester to the DLC3.
(d) Turn the ignition switch ON.
(e) Push the ºONº button of OBD ll scan tool or Hand-held tester.
(f) Select the item º/DIAGNOSIS/ENHANCED OBD ll/DATA LIST/ALL (or ATM)º.
(g) According to the display on tester, read the ºDATA LISTº.
ItemMeasurement Item/
Display (Range)Normal ConditionDiagnostic Note
PNP SW [NSW]PNP SW Status/
ON or OFFShift lever position is;
P or N: ON
Except P or N: OFF
REVERSEPNP SW Status/
ON or OFFShift lever position is;
R: ON
Except R: OFFThe shift lever position and these
values are different, there are fail-
ures of the PNP switch or shift
cable adjustment
DRIVEPNP SW Status/
ON or OFFShift lever position is;
D and 4: ON
Except D and 4: OFFcable adjustment.
1 Check park/neutral position switch.
PREPARATION:
(a) Jack up the vehicle.
(b) Disconnect the park/neutral position switch connector.
CHECK:
Check continuity between each terminal shown below when the
shift lever is moved to each position.
OK:
Shift positionTerminal No. to continuityTerminal No. to continuity
P1 - 36 - 9
R2 - 3-
N3 - 56 - 9
D, 43 - 7-
33 - 4-
2, L3 - 8-
NG Replace park/neutral position switch
(See page AT-7).
OK

D11591
ON
E1(-)P(+)
R(+)
3(+)N(+) L(+)
4(+)D(+)
2(+)
NSW(+)
E5E6E7E8E9
- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-409
602 Author
: Date
:
2004 LAND CRUISER (RM1071U)
3 Measure voltage between each terminals of NSW, P, R, N, D, 4, 3, 2, L and E1 of
ECM.
PREPARATION:
(a) Connect the shift lock control computer connector (trans-
mission control switch).
(b) Turn the ignition switch ON.
CHECK:
Measure voltage between each terminals NSW, P, R, N, D, 4,
3, 2, L and E1 of ECM when the shift lever is shifted to the follow-
ing positions.
OK:
Tester connectionConditionSpecified condition
NSW B d dShift lever position: P and NBelow 1 VNSW - Body groundShift lever position: Except P and NBattery voltage
P- Body groundShift lever position: PBattery voltage
R - Body groundShift lever position: RBattery voltage*
N - Body groundShift lever position: NBattery voltage
D - Body groundShift lever position: D and 4Battery voltage
4 - Body groundShift lever position: 4Battery voltage
3 - Body groundShift lever position: 3Battery voltage
2 - Body groundShift lever position: 2 and LBattery voltage
L - Body groundShift lever position: LBattery voltage
HINT:
*: The voltage will drop slightly due to lighting up of the back up
light.
OK Check and replace the ECM (See page IN-36).
NG
Repair or replace the harness or connector
(See page IN-36).