1996 TOYOTA LAND CRUISER Throttle position sensor

BE6653
FI7058A00486
Throttle Position
SensorON
4
3
21
1
11
9
10
E5
E5
E5 E5
VTA
ECM
VCC
IDL
E2 E112V
5V
FI7064
A00487
Throttle Position Sensor
4
3
2
11
11
9
10
E5
E5
E5 E5
VTA
ECM
VCC
IDL
E2 E112V
5V
IDL E2
ON
DI−94
−
DIAGNOSTICS ENGINE
1996 LAND CRUISER (RM451U)
2 Check for open in harness or ECM.
PREPARATION:
(a) Disconnect throttle position sensor connector.
(b) Connect sensor wire harness terminals between terminals 1 and 2.
(c) Turn ignition switch ON.
CHECK:
Read CTP switch signal on TOYOTA hand −held tester.
OK:
CTP switch signal: ON
OK Confirm good connection at sensor. If OK, replace throttle position sensor.
NG
3 Check for open in harness or ECM.
PREPARATION:
(a) Remove instrument panel speaker No.1 panel (See page SF−65 ).
(b) Connect between terminals IDL and E2 of ECM.
HINT:
Throttle position sensor connector is disconnected.
Before checking, do a visual check and contact pressure check
for connector (See page IN−28).
(c) Turn ignition switch ON.
CHECK:
Read CTP switch signal on TOYOTA hand −held tester.
OK:
CTP switch signal: ON
OK Open in harness between ECM and throttle position sensor, repair or replace harness.
NG
Confirm connection at ECM.
If OK, replace ECM (See page IN−28).
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BE6653A00499A00488
Throttle Position Sensor
4
3
2
11
11
9
10
E5
E5
E5 E5
VTA
ECM
VCC IDL1
E2 E112V
5V
ON
BE6653
A00496 A00498
A00489
4
3
2
11
11
9
10
E5
E5
E5 E5
VTA1
ECM
VCC IDL1
E2 12V
5V
ON
Throttle Position
Sensor
E5 Connector
−
DIAGNOSTICS ENGINE
DI−95
1996 LAND CRUISER (RM451U)
4 Check for short in harness or ECM.
PREPARATION:
(a) Disconnect throttle position sensor connector.
(b) Turn ignition switch ON.
CHECK:
Read CTP switch signal on TOYOTA hand −held tester.
OK:
CTP switch signal: OFF
OK Confirm good connection at sensor. If OK, replace throttle position sensor.
NG
5 Check for short in harness or ECM.
PREPARATION:
(a) Remove instrument panel speaker No.1 panel (See page SF−65 ).
(b) Disconnect E5 connector of ECM.
HINT:
Throttle position sensor connector is disconnected.
(c) Turn ignition switch ON.
CHECK:
Read CTP switch signal on TOYOTA hand −held tester.
OK:
CTP switch signal: OFF
OK Short in harness between ECM and throttle position sensor, repair or replace harness.
NG
Confirm connection at ECM.
If OK, replace ECM (See page IN−28).
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Version 1.11 - 03/16/2010

A00492
43
2
11
11
9
10
E5
E5
E5 E5
VTA
ECM
VCC
IDL
E2E1 12V
5V
ON
Throttle Position Sensor
DI−96
−
DIAGNOSTICS ENGINE
1996 LAND CRUISER (RM451U)
OBD II scan tool (excluding TOYOTA hand −held tester)
1 Check for open and short in harness or ECM.
PREPARATION:
(a) Disconnect throttle position sensor connector.
(b) Turn ignition switch ON.
CHECK:
Measure voltage between terminals 1 and 2 of throttle position
sensor connector.
OK:
Voltage: 9 − 14 V
OK Confirm good connection at sensor. If OK, replace throttle position sensor.
NG
2 Check for open and short in harness and connector between throttle posit\
ion sensor and ECM (See page IN−28).
NG Open or short in harness between ECM and
throttle position sensor.
OK
Confirm connection at ECM.
If OK, replace ECM (See page IN−28).
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DI5KD−02
Q08236
No. 1 Vehicle
Speed Sensor
O/D OFF Indicator Light
MIL
Pattern Select Switch O/D Main Switch
DLC1
Shift Solenoid Valve SL
ECM
Stop Light Switch L4 Position Sensor
Park/Neutral Position Switch No. 2 Vehicle Speed Sensor
Shift Solenoid Valve No. 2
Shift Solenoid Valve No. 1
Engine Coolant Temperature Sensor
Throttle Position Sensor
ATF Temperature Sensor
DLC3
Transfer Neutral
Position Switch
DI−144
−
DIAGNOSTICS AUTOMATIC TRANSMISSION
1996 LAND CRUISER (RM451U)
PARTS LOCATION
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DI5KH−03
−
DIAGNOSTICS AUTOMATIC TRANSMISSION
DI−147
1996 LAND CRUISER (RM451U)
PROBLEM SYMPTOMS TABLE
If a normal code is displayed during the diagnostic trouble code check but\
the trouble still occurs, check the
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
When troubleshooting, check Chapter 1 first. If instructions are given i\
n Chapter 1 to proceed to chapter 2
or 3, proceed as instructed.
(1) If the instruction ”Proceed to next circuit inspection shown on matrix chart” is given in the flow
chart for each circuit, proceed to the circuit with the next highest number in the table to cont\
inue
the check.
(2) 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
SymptomSuspect AreaSee page
Vehicle does not move in any forward position and reverse posi-
tion6. On−vehicle repair matrix chart
7. Off −vehicle repair matrix chart−
−
Vehicle does not move in a particular position or positions1. On −vehicle repair matrix chart
2. Off −vehicle repair matrix chart−
−
No up− shift (1st → 2nd)
1. Shift solenoid valve No. 1 and No. 2 circuit
2. Throttle position sensor circuit
3. No. 1 vehicle speed sensor circuit
4. No. 2 vehicle speed sensor circuit
5. On −vehicle repair matrix chart
6. Park/neutral position switch circuit
7. Off −vehicle repair matrix chart
8. ECMDI−157 DI−35
DI−87
DI−166 −
DI−169 −
DI−145
No up −shift (2nd → 3rd)
1. Shift solenoid valve No. 1 and No. 2 circuit
2. Throttle position sensor circuit
3. No. 1 vehicle speed sensor circuit
4. No. 2 vehicle speed sensor circuit
5. On−vehicle repair matrix chart
6. Park/neutral position switch circuit
7. Off −vehicle repair matrix chart
8. ECMDI−157 DI−35
DI−87
DI−166 −
DI−169 −
DI−145
No up− shift (3rd → O/D)
1. O/D main switck& O/D OFF indicator light circuit
2. Shift solenoid valve No. 1 and No. 2 circuit
3. No. 1 vehicle speed sensor circuit
4. No. 2 vehicle speed sensor circuit
5. Throttle position sensor circuit
6. Park/neutral position switch circuit
7. O/D cancel signal circuit
8. Engine coolant temp. sensor circuit
9. On−vehicle repair matrix chart
10.Off −vehicle repair matrix chart
11. ECMDI−174
DI−157 DI−87
DI−166 DI−35
DI−169
DI−172 DI−30 −
−
DI−145
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Version 1.11 - 03/16/2010

DI−148
−
DIAGNOSTICS AUTOMATIC TRANSMISSION
1996 LAND CRUISER (RM451U)
No down−
shift (O/D → 3rd)
1. Shift solenoid valve No. 1 and No. 2 circuit
2. Throttle position sensor circuit
3. No. 1 vehicle speed sensor circuit
4. No. 2 vehicle speed sensor circuit
5. On−vehicle repair matrix chart
6. ECMDI−157 DI−35
DI−87
DI−166 −
DI−145
No down −shift (3rd → 2nd)
1. Shift solenoid valve No. 1 and No. 2 circuit
2. Throttle position sensor circuit
3. No. 1 vehicle speed sensor circuit
4. No. 2 vehicle speed sensor circuit
5. On−vehicle repair matrix chart
6. ECMDI−157 DI−35
DI−87
DI−166 −
DI−145
No down −shift (2nd → 1st)
1. Shift solenoid valve No. 1 and No. 2 circuit
2. Throttle position sensor circuit
3. No. 1 vehicle speed sensor circuit
4. No. 2 vehicle speed sensor circuit
5. On−vehicle repair matrix chart
6. Off −vehicle repair matrix chart
7. ECMDI−157 DI−35
DI−87
DI−166 −
−
DI−145
Lock− up does not engage
1. Shift solenoid valve SL circuit
2. Throttle position sensor circuit
3. No. 1 vehicle speed sensor circuit
4. No. 2 vehicle speed sensor circuit
5. Stop light switch circuit
6. Park/neutral position switch circuit
7. Engine coolant temp. sensor circuit
8. On −vehicle repair matrix chart
9. Off −vehicle repair matrix chart
10.ECMDI−163
DI−35
DI−87
DI−166
DI−185
DI−169 DI−30 −
−
DI−145
Lock− up does not disengage
1. Shift solenoid valve SL circuit
2. Throttle position sensor circuit
3. No. 1 vehicle speed sensor circuit
4. No. 2 vehicle speed sensor circuit
5. Stop light switch circuit
6. On −vehicle repair matrix chart
7. Off −vehicle repair matrix chart
8. ECMDI−163 DI−35
DI−87
DI−166
DI−185 −
−
DI−145
Shift point too high or too low
1. Throttle position sensor circuit
2. Pattern select switch circuit
3. No. 1 vehicle speed sensor circuit
4. No. 2 vehicle speed sensor circuit
5. ECMDI−35
DI−179 DI−87
DI−166
DI−145
Up− shifts to 2nd while in L position
Up− shifts to 3rd while in L position1. Park/neutral position switch circuit
2. ECMDI−169
DI−145
Up− shifts to O/D from 3rd while O/D main switch is OFF1. O/D main switck& O/D OFF indicator light circuit
2. ECMDI−174
DI−145
Up−shift to O/D from 3rd while engine is cold
1. Engine coolant temp. sensor circuit
2. On −vehicle repair matrix chart
3. Off −vehicle repair matrix chart
4. ECMDI−30 −
−
DI−145
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−
DIAGNOSTICS AUTOMATIC TRANSMISSION
DI−149
1996 LAND CRUISER (RM451U)
Harsh engagement (N
→ D)
1. Shift solenoid valve SL circuit
2. ATF temp. sensor circuit
3. Throttle position sensor circuit
4. Park/neutral position switch circuit
5. On −vehicle repair matrix chart
6. Off −vehicle repair matrix chart
7. ECMDI−163
DI−154 DI−35
DI−169 −
−
DI−145
Harsh engagement (Lock −up)
1. Shift solenoid valve SL circuit
2. Throttle position sensor circuit
3. No. 1 vehicle speed sensor circuit
4. No. 2 vehicle speed sensor circuit
5. On −vehicle repair matrix chart
6. Off −vehicle repair matrix chart
7. ECMDI−163 DI−35
DI−87
DI−166 −
−
DI−145
Harsh engagement (Any driving position)
1. Shift solenoid valve SL circuit
2. ATF temp. sensor circuit
3. Throttle position sensor circuit
4. No. 1 vehicle speed sensor circuit
5. No. 2 vehicle speed sensor circuit
6. On −vehicle repair matrix chart
7. Off −vehicle repair matrix chart
8. ECMDI−163
DI−154 DI−35
DI−87
DI−166
−
−
DI−145
Slip or shudder (Forward and reverse)1. On −vehicle repair matrix chart
2. Off −vehicle repair matrix chart−
−
Slip or shudder (A particular position)1. On −vehicle repair matrix chart
2. Off −vehicle repair matrix chart−
−
No engine braking1. On −vehicle repair matrix chart
2. Off −vehicle repair matrix chart−
−
Poor acceleration
1. Throttle position sensor circuit
2. No. 1 vehicle speed sensor circuit
3. No. 2 vehicle speed sensor circuit
4. Shift solenoid valve No. 1 and No. 2 circuit
5. Shift solenoid valve SL circuit
6. On −vehicle repair matrix chart
7. Off −vehicle repair matrix chartDI−35
DI−87
DI−166
DI−157
DI−163 −
−
No kick− down
1. Throttle position sensor circuit
2. Shift solenoid valve No. 1 and No. 2 circuit
3. No. 1 vehicle speed sensor circuit
4. On−vehicle repair matrix chart
5. ECMDI−35
DI−157 DI−87 −
DI−145
No pattern select1. Pattern select switch circuit
2. ECMDI−179
DI−145
No 2nd start
1. Pattern select switch circuit
2. Shift solenoid valve No. 1 and No. 2 circuit
3. ECMDI−179
DI−157
DI−145
Large shift shock or engine stalls when starting off or stopping
1. Shift solenoid valve SL circuit
2. Stop light switch circuit
3. Off −vehicle repair matrix chart
4. ECMDI−163
DI−185 −
DI−145
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D00076
Line
PressureDrain
Q08219
Q08226
D00087
(+)
(−)
(+)(−)
Air
−
DIAGNOSTICS AUTOMATIC TRANSMISSION
DI−161
1996 LAND CRUISER (RM451U)
DTC P0770 Shift Solenoid E Malfunction
(Shift Solenoid Valve SL)
SYSTEM DESCRIPTION
The ECM uses the signals from the throttle position sensor, air −
flow meter and crankshaft position sensor to monitor the en-
gagement condition of the lock −up clutch.
Then the ECM compares the engagement condition of the
lock−up clutch with the lock −up schedule in the ECM memory
to detect mechanical trouble of the shift solenoid valve SL,
valve body and torque converter clutch.
DTC No.DTC Detecting ConditionTrouble Area
P0770
Lock− up does not occur when driving in the lock− up range
(normal driving at 80 km/h [50 mph] ), or lock− up remains ON
in the lock− up OFF range (2 trip detection logic)Shift solenoid valve SL is stuck open or closed
 Valve body blocked up or stuck
 Lock− up clutch
INSPECTION PROCEDURE
1 Check shift solenoid valve SL operation.
PREPARATION:
Remove the shift solenoid valve SL from the valve body.
CHECK:
(a) Applying 490 kPa (5 kgf/cm2, 71 psi) of compressed air,
check that the solenoid valve opens.
(b) When battery voltage is supplied to the shift solenoid
valve, check it does not leak air.
NG Replace shift solenoid valve SL.
OK
DI5KQ−02
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