TOYOTA LAND CRUISER 1998 Factory Repair Manual

- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-387
580 Author
: Date
:
MEMO

DI-388
- DIAGNOSTICSAUTOMATIC TRANSMISSION
581 Author
: Date
:
MEMO

DI3BT-04
DI-396
- DIAGNOSTICSAUTOMATIC TRANSMISSION
589 Author
: Date
:
2004 LAND CRUISER (RM1071U)
PROBLEM SYMPTOMS TABLE
If a normal code is displayed during the diagnostic trouble code check although the trouble still occurs, check
the electrical circuits for each symptom in the order given in the charts on the following pages and proceed
to the page given for troubleshooting.
The Matrix Chart is divided into 3 chapters.
Chapter 1: Electronic Circuit Matrix Chart
Chapter 2: On-vehicle Repair Matrix Chart
Chapter 3: Off-vehicle Repair Matrix Chart
If the instruction ºProceed to next circuit inspection shown on matrix chartº is given in the flow chart
for each circuit, proceed to the circuit with the next highest number in the table to continue the check.
If the trouble still occurs even though there are no abnormalities in any of the other circuits, then check
and replace the ECM.
Chapter 1: Electronic Circuit Matrix Chart
HINT:
*1: When a malfunction is on the circuit *1 mark is attached, DTC is output.
SymptomSuspect AreaSee page
No up-shift
(A particular gear, from 1st to 4th gear, is not up-shifted)1. Shift solenoid valve (S1) circuit *1
2. Shift solenoid valve (S2) circuit *1
3. ECM
DI-460
DI-464
IN-36
No up-shift (4th " 5th)
1. Transmission control switch circuit (D - 4) *1
2. Engine coolant temp. sensor circuit *1
3. Speed sensor NT circuit *1
4. Shift solenoid valve (SL1) circuit *1
5. Shift solenoid valve (SL2) circuit *1
6. Shift solenoid valve (SR) circuit *1
7. ECM
DI-402
DI-36
DI-418
DI-426
DI-449
DI-468
IN-36
No up-shift (3rd " 4th)
1. Engine coolant temp. sensor circuit *1
2. Shift solenoid valve (S2) circuit *1
3. ECM
DI-36
DI-464
IN-36
No up-shift (1st " 2nd)
1. Transmission control switch circuit (2 - L) *1
2. Shift solenoid valve (S2) circuit *1
3. ECM
DI-402
DI-464
IN-36
No down-shift (5th " 4th)
1. Transmission control switch circuit (D - 4) *1
2. Shift solenoid valve (SL1) circuit *1
3. Shift solenoid valve (SL2) circuit *1
4. Shift solenoid valve (SR) circuit *1
5. ECM
DI-402
DI-426
DI-449
DI-468
IN-36
No down-shift (2nd " 1st)
1. Transmission control switch circuit (2 - L) *1
2. Shift solenoid valve (S2) circuit *1
3. ECM
DI-402
DI-464
IN-36
No down-shift
(A particular gear, from 1st to 4th gear, is not down-shifted)1. Shift solenoid valve (S1) circuit *1
2. Shift solenoid valve (S2) circuit *1
3. ECM
DI-460
DI-464
IN-36
No lock-up
1. ATF temperature sensor circuit *1
2. Transfer L4 position switch circuit *1
3. Stop light switch circuit *1
4. Speed sensor NT circuit *1
5. Shift solenoid valve (SLU) circuit *1
6. ECM
DI-410
DI-472
DI-424
DI-418
DI-491
IN-36
No lock-up offECMIN-36

- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-397
590 Author
: Date
:
2004 LAND CRUISER (RM1071U) Shift point too high or too low
1. Shift solenoid valve (SLT) circuit *1
2. Speed sensor NT circuit *1
3. Speed sensor SP2 circuit *1
4. Throttle position sensor circuit *1
5. ATF temperature sensor circuit *1
6. Pattern select switch circuit (PWR mode switch)
7. Transfer L4 position switch circuit *1
8. ECM
DI-479
DI-418
DI-421
DI-36
DI-410
DI-495
DI-472
IN-36
Up-shift to 5th from 4th while shift lever is 4 position1. Transmission control switch circuit (D - 4) *1
2. ECM
DI-402
IN-36
Up-shift to 5th from 4th while engine is cold1. Engine coolant temp. sensor circuit *1
2. ECM
DI-36
IN-36
Up-shift to 4th from 3rd while shift lever is 3 position1. Park/neutral position switch circuit *1
2. ECM
DI-402
IN-36
Up-shift to 3rd from 2nd while shift lever is 2 position1. Park/neutral position switch circuit *1
2. ECM
DI-402
IN-36
Up-shift to 2nd from 1st while shift lever is L position1. Transmission control switch circuit (2 - L) *1
2. ECM
DI-402
IN-36
Harsh engagement (N " D)
1. Speed sensor NT circuit *1
2. Shift solenoid valve (SL1) circuit *1
3. Shift solenoid valve (SLT) circuit *1
4. ECM
DI-418
DI-426
DI-479
IN-36
Harsh engagement (Lock-up)
1. Speed sensor NT circuit *1
2. Speed sensor SP2 circuit *1
3. Shift solenoid valve (SLU) circuit *1
4. ECM
DI-418
DI-421
DI-491
IN-36
Harsh engagement (Any driving position)ECMIN-36
Poor acceleration1. ATF temperature sensor No.2 circuit *1
2. ECM
DI-483
IN-36
No engine brakingECMIN-36
No kick-downECMIN-36
Engine stalls when starting off or stoppingECMIN-36
No pattern select (PWR)1. Pattern select switch circuit (PWR mode switch)
2. ECMDI-495
IN-36
No 2nd start
1. Pattern select switch circuit (2nd start switch)
2. Transmission control switch circuit (2 - L) *1
3. ECM
DI-497
DI-402
IN-36
AT Oil Temp. warning light remains on*1Lock-up at 3rd gear1. ATF temperature sensor No.2 circuit *1
2 ECM
DI-483
IN 36Shift point too high2. ECMIN-36
A/T.P. indicator light does not light up
1. A/T.P. indicator light circuit
2. Combination meter circuit
3. ECMDI-500
BE-58
IN-36

DI-398
- DIAGNOSTICSAUTOMATIC TRANSMISSION
591 Author
: Date
:
2004 LAND CRUISER (RM1071U)
Chapter 2: On-Vehicle Repair
(
: A750E, A750F AUTOMATIC TRANSMISSION Repair Manual Pub. No. RM999U)
SymptomSuspect AreaSee page
Vehicle does not move in any forward position and reverse posi-
tions
1. Transmission control rod
2. Manual valve
3. Parking lock pawl
4. Off-vehicle repair matrix chartDI-361




-
Vehicle does not move in R position1. Valve body assy
2. Off-vehicle repair matrix chartAT-8
-
No up-shift (1st " 2nd)1. Valve body assy
2. Off-vehicle repair matrix chartAT-8
-
No up-shift (2nd " 3rd)1. Valve body assy
2. Off-vehicle repair matrix chartAT-8
-
No up-shift (3rd " 4th)1. Valve body assy
2. Off-vehicle repair matrix chartAT-8
-
No up-shift (4th " 5th)1. Valve body assy
2. Off-vehicle repair matrix chartAT-8
-
No down-shift (5th " 4th)1. Valve body assy
2. Off-vehicle repair matrix chartAT-8
-
No down-shift (4th " 3rd)1. Valve body assy
2. Off-vehicle repair matrix chartAT-8
-
No down-shift (3rd " 2nd)1. Valve body assy
2. Off-vehicle repair matrix chartAT-8
-
No down-shift (2nd " 1st)1. Valve body assy
2. Off-vehicle repair matrix chartAT-8
-
No lock-up or No lock-up off
1. Shift solenoid valve (SLU)
2. Valve body assy
3. Off-vehicle repair matrix chartDI-487
AT-8
-
Harsh engagement (N " D)
1. Shift solenoid valve (SL1)
2. Valve body assy
3. C
1 accumulator
4. Off-vehicle repair matrix chart
DI-441
AT-8


-
Harsh engagement (Lock-up)
1. Shift solenoid valve (SLU)
2. Valve body assy
3. Off-vehicle repair matrix chartDI-487
AT-8
-
Harsh engagement (N " R)
1. Shift solenoid valve (SLT)
2. Shift solenoid valve (SLU)
3. Valve body assy
4. C
3 accumulator
5. Off-vehicle repair matrix chart
DI-476
DI-487
AT-8


-
Harsh engagement (1st "2nd " 3rd " 4th "5th)
1. Shift solenoid valve (SLT)
2. Shift solenoid valve (SL1)
3. Valve body assyDI-476
DI-441
AT-8
Harsh engagement (1st " 2nd)
1. Valve body assy
2. B
3 accumulator
3. Off-vehicle repair matrix chart
AT-8


-
Harsh engagement (2nd " 3rd)
1. Valve body assy
2. C
3 accumulator
3. Off-vehicle repair matrix chart
AT-8


-
Harsh engagement (3rd " 4th)
1. Valve body assy
2. C
2 accumulator
3. Off-vehicle repair matrix chart
AT-8


-

- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-399
592 Author
: Date
:
2004 LAND CRUISER (RM1071U) Harsh engagement (4th " 5th)
1. Shift solenoid valve (SL1)
2. Shift solenoid valve (SL2)
3. Valve body assy
4. Off-vehicle repair matrix chartDI-441
DI-445
AT-8
-
Harsh engagement (5th " 4th)
1. Shift solenoid valve (SL1)
2. Shift solenoid valve (SL2)
3. Valve body assy
4. Off-vehicle repair matrix chartDI-441
DI-445
AT-8
-
Slip or shudder (Forward and reverse)
1. Transmission control rod
2. Valve body assy
3. Oil strainer
4. Off-vehicle repair matrix chartDI-361
AT-8
AT-8
-
No engine braking (1st: L position)1. Valve body assy
2. Off-vehicle repair matrix chartAT-8
-
No engine braking (2nd: 2 position)1. Valve body assy
2. Off-vehicle repair matrix chartAT-8
-
No kick-downValve body assyAT-8
Shift point too high or too low
1. Shift solenoid valve (SLT)
2. Shift solenoid valve (SL1)
3. Valve body assyDI-476
DI-441
AT-8
Poor acceleration1. Shift solenoid valve (SLT)
2. Valve body assyDI-476
AT-8
Engine stalls when starting off or stopping1. Shift solenoid valve (SLU)
2. Valve body assyDI-487
AT-8

DI-400
- DIAGNOSTICSAUTOMATIC TRANSMISSION
593 Author
: Date
:
2004 LAND CRUISER (RM1071U)
Chapter 3: Off-Vehicle Repair
(
: A750E, A750F AUTOMATIC TRANSMISSION Repair Manual Pub. No. RM999U)
SymptomSuspect AreaSee page
Vehicle does not move in any forward position and reverse posi-
tions1. Rear planetary gear unit
2. Torque converter clutch

AT-34
Vehicle does not move in R position
1. Brake No. 4 (B4)
2. Clutch No. 3 (C
3)
3. One-way clutch No.4 (F
1)






No up-shift (1st " 2nd)
1. Brake No. 3 (B3)
2. One-way clutch No.1 (F
1)
3. One-way clutch No. 2 (F
2)






No up-shift (2nd " 3rd)Clutch No. 3 (C3)

No up-shift (3rd " 4th)Clutch No. 2 (C2)

No up-shift (4th " 5th)1. Brake No. 1 (B1)
2. Clutch No. 1 (C
1)




No lock-up or No lock-up offTorque converter clutchAT-34
Harsh engagement (N " D)1. Clutch No. 1 (C1)
2. One-way clutch No.3 (F
3)




Harsh engagement (N " R)
1. Clutch No. 3 (C3)
2. Brake No. 4 (B
4)
3. One-way clutch No.1 (F
1)






Harsh engagement (1 " 2)
1. Brake No. 3 (B3)
2. One-way clutch No.1 (F
1)
3. One-way clutch No. 2 (F
2)






Harsh engagement (2 " 3)Clutch No. 3 (C3)

Harsh engagement (3 " 4)Clutch No. 2 (C2)

Harsh engagement (4 " 5th)1. Brake No. 1 (B1)
2. Clutch No. 1 (C
1)




Harsh engagement (Lock-up)Torque converter clutchAT-34
Slip or shudder (Forward and reverse: After warm-up)
1. One-way clutch No.1 (F1)
2. Clutch No. 3 (C
3)
3. Torque converter clutch clutch






Slip or shudder (Particular position: Just after engine starts)Torque converter clutchAT-34
Slip or shudder (R position)
1. Brake No. 4 (B4)
2. One-way clutch No.1 (F
1)
3. Clutch No. 3 (C
3)






Slip or shudder (1st)1. Clutch No. 1 (C1)
2. One-way clutch No.3 (F
3)




Slip or shudder (2nd)
1. Clutch No. 1 (C1)
2. Brake No. 3 (B
3)
3. One-way clutch No.1 (F
1)
4. One-way clutch No.2 (F
2)








Slip or shudder (3rd)
1. Clutch No. 1 (C1)
2. Clutch No. 3 (C
3)
3. One-way clutch No.1 (F
1)






Slip or shudder (4th)1. Clutch No. 1 (C1)
2. Clutch No. 2 (C
2)




Slip or shudder (5th)
1. Clutch No. 2 (C2)
2. Clutch No. 3 (C
3)
3. Brake No. 1 (B
1)






No engine braking (1st - 4th: D position)Clutch No. 1 (C1)

- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-401
594 Author
: Date
:
2004 LAND CRUISER (RM1071U) No engine braking (1st: L position)
Brake No. 4 (B4)

No engine braking (2nd: 2 position)Brake No. 2 (B2)

No engine braking (3rd: 3 position)Brake No. 1 (B1)

Poor acceleration (All positions)Torque converter clutchAT-34
Poor acceleration (5th)
1. Clutch No. 1 (C1)
2. Clutch No. 3 (C
3)
3. Brake No. 1 (B
1)
4. Front planetary gear unit








Engine stalls when starting off or stoppingTorque converter clutchAT-34

DIB31-02
A14471
E9E5E6E7E8 ECM Terminals
- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-393
586 Author
: Date
:
2004 LAND CRUISER (RM1071U)
TERMINALS OF ECM
Symbols (Terminals No.)Wiring ColorConditionSTD Voltage (V)
P (E9 6) E1 (E7 1)GW BRIG switch ON and shift lever P position10 to 14P (E9-6) - E1 (E7-1)G-W - BRIG switch ON and shift lever other than P positionBelow 1
N (E9 7) E1 (E7 1)GR BRIG switch ON and shift lever N position10 to 14N (E9-7) - E1 (E7-1)G-R - BRIG switch ON and shift lever other than N positionBelow 1
L4 (E8 4) E1 (E7 1)BL BRIG switch ON and Transfer shift lever L position9 to 14L4 (E8-4) - E1 (E7-1)B-L - BRIG switch ON and Transfer shift lever other than L positionBelow 1.5
SNWI (E8 5) E1 (E7 1)LR BRIG switch ON9 to 14SNWI (E8-5) - E1 (E7-1)L-R - BRIG switch ON and Press continuously 2nd start switchBelow 1
L (E8 8) E1 (E7 1)RL BRIG switch ON and shift lever L position9 to 14L (E8-8) - E1 (E7-1)R-L - BRIG switch ON and shift lever other than L positionBelow 1.5
2 (E8 9) E1 (E7 1)GB BRIG switch ON and shift lever 2 and L position9 to 142 (E8-9) - E1 (E7-1)G-B - BRIG switch ON and shift lever other than 2 and L positionBelow 1.5
D (E8 10) E1 (E7 1)GY BRIG switch ON and shift lever D and 4 position9 to 14D (E8-10) - E1 (E7-1)G-Y - BRIG switch ON and shift lever other than D and 4 positionBelow 1.5
R (E8 11) E1 (E7 1)RB BRIG switch ON and shift lever R position9 to 14R (E8-11) - E1 (E7-1)R-B - BRIG switch ON and shift lever other than R positionBelow 1.5
STP (E8 19) E1 (E7 1)GW BRBrake pedal is depressed7.5 to 14STP (E8-19) - E1 (E7-1)G-W - BRBrake pedal is releasedBelow 1.5
3 (E8 20) E1 (E7 1)GBRIG switch ON and shift lever 3 position9 to 143 (E8-20) - E1 (E7-1)G - BRIG switch ON and shift lever other than 3 positionBelow 1.5
4 (E8 23) E1 (E7 1)GR BRIG switch ON and shift lever 4 position9 to 144 (E8-23) - E1 (E7-1)G-R - BRIG switch ON and shift lever other than 4 positionBelow 1.5
PWR (E8 28) E1 (E7 1)LW BRIG switch ON and Pattern select switch º PWRº OFF9 to 14PWR (E8-28) - E1 (E7-1)L-W - BRIG switch ON and Pattern select switch ºPWRº ONBelow 1
TFN (E7 11) E1 (E7 1)YG BRIG switch ON and Transfer shift lever N positionBelow 1.5TFN (E7-11) - E1 (E7-1)Y-G - BRIG switch ON and Transfer shift lever other than N position9 to 14
SLU+ (E7-16) - SLU- (E7-15)P-G - BEngine idle speedPulse generation 2
reference
IG switch ONBelow 1.5
S2 (E6-10) - E1 (E7-1)W - BR2nd or 3rd gear9 to 14S2 (E6 10) E1 (E7 1)W BR
1st, 4th or 5th gearBelow 1.5
IG switch ON9 to 14
S1 (E6-11) - E1 (E7-1)R - BR1st or 2nd gear9 to 14S1 (E6 11) E1 (E7 1)R BR
3rd, 4th or 5th gearBelow 1.5

C00033
5V 1ms
GND
C00034
5V1ms
GND
C42918C00037
GND 5V1ms DI-394
- DIAGNOSTICSAUTOMATIC TRANSMISSION
587 Author
: Date
:
2004 LAND CRUISER (RM1071U)SLT
+ (E6-13) - SLT- (E6-12)G-W - G-BEngine idle speedPulse generation 1
reference
IG switch ONBelow 1.5
SR (E6-15) - E1 (E7-1)G - BR5th gear9 to 14SR (E6 15) E1 (E7 1)G BR
1st gearBelow 1
SL2+ (E6-17) - SL2- (E6-16)P-B - P-LEngine idle speedPulse generation 3
reference
SL1+ (E6-19) - SL1- (E6-18)R-L - R-WEngine idle speedPulse generation 4
reference
THO2 (E6-24) - E2 (E5-28)L - BR-WATF temperature: 115°C (239°F) or moreBelow 1.5
SP2+ (E6-26) - SP2- (E6-34)R - GVehicle speed 20 km/h (12 mph)Pulse generation 6
reference
NT+ (E6-27) - NT- (E6-35)L - WEngine idle speedPulse generation 5
reference
THO1 (E6-32) - E2 (E5-28)G-Y - BR-WATF temperature: 115°C (239°F) or moreBelow 1.5
NSW (E5 16) E1 (E7 1)BW BRIG switch ON and shift lever P and N positionBelow 1.5NSW (E5-16) - E1 (E7-1)B-W - BRIG switch ON and shift lever other than P and N position9 to 14
Pulse generation 1
Reference:
ItemCondition
TerminalSLT+ - SLT-
Tool setting5V/DIV, 1ms/DIV
Vehicle conditionEngine idle speed
Pulse generation 2
Reference:
ItemCondition
TerminalSLU+ - SLU-
Tool setting5V/DIV, 1ms/DIV
Vehicle conditionEngine idle speed
Pulse generation 3
Reference:
ItemCondition
TerminalSL2+ - SL2-
Tool setting5V/DIV, 1ms/DIV
Vehicle conditionEngine idle speed