1996 TOYOTA LAND CRUISER Fuse transmission

Q08582
ECM
O/D OFF Indicator Light
(Combination Meter)
Ignition Switch
Fuse BlockO/D Main Switch* E7
2
P−L
B−L Y
GAUGE
Battery B+
W
2
Y
3 2
4 4
2
2 2
4
W−B
6
FL AM1
B−Y
22
E6 A
A
EA2 C12
C12
19
OD2
B ID2
J1
B 9
1
1 8
3
Fuse Block
P−L
P−L
AM1
2
BF
R/B No. 2 R/B No. 2
O/D Main switch
Contact go off with switch pushed in.
Contact go on with switch once again.
*:
DI−174
−
DIAGNOSTICS AUTOMATIC TRANSMISSION
1996 LAND CRUISER (RM451U)
O/D Main Switch & O/D OFF Indicator Light Circuit
CIRCUIT DESCRIPTION
The O/D main switch contacts go off when the switch is pushed in and come on when it is pushed once again.\
In O/D main switch OFF position, the O/D OFF indicator lights up, and the \
ECM prohibits shifting to O/D.
WIRING DIAGRAM
DI5L3−03
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BE3840
Q08230D00093
ON
OD2
DI−176
−
DIAGNOSTICS AUTOMATIC TRANSMISSION
1996 LAND CRUISER (RM451U)
2 Check OVRDRIVE CUT SW2 signal.
When using TOYOTA hand −held tester:
PREPARATION:
(a) Remove the fuse box cover.
(b) Connect a TOYOTA hand−held tester to the DLC3.
(c) Turn the ignition switch ON and TOYOTA hand−held tes-
ter main switch ON.
CHECK:
Read the OVRDRIVE CUT SW2 signal on the TOYOTA hand −
held tester.
OK:
O/D Main SwitchOVRDRIVE CUT SW2 Signal
O/D ON (pushed in)OFF
O/D OFF (pushed out)ON
When not using TOYOTA hand −held tester:
PREPARATION:
Turn the ignition switch ON.
CHECK:
Check the voltage between terminal OD2 of the ECM and body
ground.
OK:
O/D Main SwitchVoltage
O/D ON9 − 14 V
O/D OFFBelow 3 V
OK Proceed to next circuit inspection shown on
problem symptoms table (See page DI−147 ).
NG
3 Check harness and connector between O/D OFF indicator light and ECM (Se\
e page IN−28 ).
NG Repair or replace harness or connector.
OK
Check and replace ECM.
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Q08584
ECM
Pattern Select Switch*
(PWR Mode Switch)
PWR
E7
P−B
B−W
PWR Indicator Light
(Combination Meter)
ID2
63
C12
13
16
20
15
B
J6
EGU−IG
Fuse Block
Ignition Switch
EA2
AM1
IG1
Fuse Block
AM1
P−B
P−B
6 B
B B ID2
B−W
B−W
3
1
B−Y
2
4
222
1 FL AM1
F6
Battery
2
2
3
4
WB −L
R/B No. 2
R/B No. 2
Pattern Select Switch (PWR Mode Switch)
When the PWR mode switch is pushed in, the switch is contacted and
the PWR mode is celected.
To cancel the PWR mode, push the PWR mode switch onec again.
*:
−
DIAGNOSTICS AUTOMATIC TRANSMISSION
DI−179
1996 LAND CRUISER (RM451U)
Pattern Select Switch Circuit (PWR Mode Switch)
CIRCUIT DESCRIPTION
The ECM memory contains the shift programs for the NORMAL and POWER pattern\
s, 2 position, L position
and the lock −up patterns. Following the programs corresponding to the signals from th\
e pattern select
switch, the park/neutral position switch and other various sensors, the ECM swi\
tches the solenoid valves
ON and OFF, and control the transmission gear change and the lock −up clutch operation.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check operation of PWR indicator light.
PREPARATION:
Check if the PWR indicator light normally when the PWR mode switch is set to NORM and PWR position.
NG Check and repair PWR indicator light.
OK
DI5L6−03
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BE3840
Q08229D00094
PWR
ON
DI−180
−
DIAGNOSTICS AUTOMATIC TRANSMISSION
1996 LAND CRUISER (RM451U)
2 Check PATTERN SEL SW signal.
When using TOYOTA hand −held tester:
PREPARATION:
(a) Remove the fuse box cover.
(b) Connect a TOYOTA hand−held tester to the DLC3.
(c) Turn the ignition switch ON and TOYOTA hand−held tes-
ter main switch ON.
CHECK:
Read the PWR signal on the TOYOTA hand −held tester.
OK:
PWR Mode SwitchPATTERN SEL SW Signal
PWRON
NORMOFF
When not using TOYOTA hand −held tester:
PREPARATION:
Turn the ignition switch ON.
CHECK:
Measure the voltage between terminal PWR of the ECM con-
nector and body ground when the PWR mode switch is set to
the PWR (POWER) position and NORM (NORMAL) position.
OK:
PWR Mode SwitchVoltage
PWR7.5 − 14 V
NORMBelow 1.5 V
HINT:
The ECM uses the normal pattern signal if the power signal is
not input.
OK Proceed to next circuit inspection shown on problem symptoms table (See page DI−147 ).
NG
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Q08580
R−W
J1
A
W 5BRY
IG3
O
Ignition Switch
Fuse Block
GAUGE
Pattern Select Switch*
(2nd Start Switch)
B ECM
18
IH2 12
HI
1
113
9
E4
2C12
Battery
FL AM1
Fuse Block
B−L
W
B−Y
2
4
F6
6 A
A
Y
3
1
E4HOLD
2
EA2
AM1
22
1
AM1 IG1
B
C12
ID3 IH2
O
R−W
2 2
3
42nd STRT Indicator Light
(Combination Meter)
12
Y
R/B No. 2 R/B No. 2
Pattern Select Switch (2nd Start Switch)
When the 2nd start switch is pushed, the switch is contacted and the 2nd\
mode is selected.
To cancel the 2nd start, push the 2nd start swtch once again. The 2nd star\
t is automatically cancelled
out when the ignition switch is turned OFF.
*:
DI−182
−
DIAGNOSTICS AUTOMATIC TRANSMISSION
1996 LAND CRUISER (RM451U)
Pattern Select Switch Circuit (2nd Start Switch) & 2nd Start
Switch Indicator Light Circuit
CIRCUIT DESCRIPTION
When 2nd start mode is selected with the pattern select switch, the ECM cont\
rols the solenoid valves and
the transmission starts from 2nd gear.
In D position, the transmission automatically shifts up through 3rd to O\
/D as usual.
In 2nd position, the transmission is held in 2nd gear.
WIRING DIAGRAM
DI5L8−03
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Q08580
R-W
J1
A
W 5BRY
IG3
O
Ignition Switch
Fuse Block
GAUGE
(*) Pattern Select Switch
(2nd Start Switch)
B
ECM
18
IH2 12
HI
1
113
9
E4
2
C12
Battery
FL AM1
Fuse Block
B-L
W
B-Y
2
4
F6
6 A
A
Y
3
1
E4HOLD
2
EA2
AM1
22
1
AM1 IG1
B
C12
IG3 IL2
O
R-W
2 2
3
42nd STRT Indicator Light
(Combination Meter)
12
Y
R/B No.2 R/B No.2
DI-185
-
DIAGNOSTICS AUTOMATIC TRANSMISSION
1996 LAND CRUISER (RM451U)
Pattern Select Switch Circuit (2nd Start Switch) & 2nd Start
Switch Indicator Light Circuit
CIRCUIT DESCRIPTION
When 2nd start mode is selected with the pattern select switch, the ECM cont\
rols the solenoid valves and
the transmission starts from 2nd gear.
In D position, the transmission automatically shifts up through 3rd to O\
/D as usual.
In 2nd position, the transmission is held in 2nd gear.
WIRING DIAGRAM
(*) Pattern Select Switch (2nd Start Switch)
When the 2nd start switch is pushed, the switch is contacted and the 2nd\
mode is selected.
To cancel the 2nd start, push the 2nd start switch once again. The 2nd sta\
rt is automatically cancelled out
when the ignition switch is turned OFF.
DI5L8-02
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EM0KT−06
EM−10
−
ENGINE MECHANICAL IGNITION TIMING
513
Author: Date:
1996 LAND CRUISER (RM451U)
IGNITION TIMING
INSPECTION
1. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
2. CONNECT TOYOTA HAND −HELD TESTER OR OBD II
SCAN TOOL
(a) Remove the fuse cover on the instrument panel.
(b) Connect the TOYOTA hand−held tester or OBD II scan tool to the DLC3.
(c) Please refer to the TOYOTA hand−held tester or OBD II scan tool operator’s manual for further details.
3. CONNECT TIMING LIGHT TO ENGINE
4. CHECK IDLE SPEED
(a) Race the engine speed at 2,500 rpm for approx. 90 se- conds.
(b) Check the idle speed. Idle speed: 650 ± 50 rpm
5. INSPECT AND ADJUST IGNITION TIMING
(a) Using SST, connect terminals TE1 and E1 of the DLC1. SST 09843−18020
(b) Using a timing light, check the ignition timing. Ignition timing: 3 ° BTDC @ idle
(Transmission in neutral position and A/C OFF)
(c) Loosen the hold−down bolt, and adjust by turning the dis-
tributor.
(d) Tighten the hold− down bolt, and recheck the ignition tim-
ing.
Torque: 18 N·m (180 kgf·cm, 13 ft·lbf)
(e) Remove the SST from the DLC1. SST 09843−18020
6. FURTHER CHECK IGNITION TIMING Ignition timing: 2 − 13° BTDC @ idle
(Transmission in neutral position and A/C OFF)
HINT:
The timing mark moves in a range between 2 ° and 13° .
7. DISCONNECT TIMING LIGHT FROM ENGINE
8. DISCONNECT TOYOTA HAND −HELD TESTER OR
OBD II SCAN TOOL
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