Page 2897 of 4770
D01095
Shift Solenoid
Valve SLN 1
4
B±YW±L3
2
SLN
±
SLN+
ECM
*1: Except California, w/ Engine Immobilizer and / or TRAC
*2: California, w/ Engine Immobilizer and / or TRAC*2 *1
E11
E3E10
E9 E3*2 *1
1920
R
L
E11
D00050
2
1
21
± DIAGNOSTICSAUTOMATIC TRANSAXLE (A541E)
DI±477
712 Author: Date:
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check shift solenoid valve SLN.
PREPARATION:
Disconnect the shift solenoid valve SLN connector.
CHECK:
(a) Measure resistance between terminals 1 and 2 of sole-
noid connector.
(b) Connect positive lead with an 8 ~10 W bulb to terminal
1 of solenoid connector and negative lead to terminal
2, then check the movement of the valve.
OK:
(a) Resistance: 5.1 ~ 5.5 W
(b)
When battery positive voltage is applied.Valve move in direction in illustration.
(on the left)
When battery positive voltage is cut off.Valve move in direction in illustration.
(on the right)
Page 2898 of 4770
D00051
(+)
(±)12
DI±478
± DIAGNOSTICSAUTOMATIC TRANSAXLE (A541E)
713 Author: Date:
Reference
PREPARATION:
Connect positive lead of the variable power supply to termi-
nal 1 of solenoid connector and negative lead to terminal 2.
CHECK:
(a) Check the movement of the valve when the voltage is
gradually increased.
(A current greater than 1A should not be supplied.)
(b) Check the movement of the valve when the voltage is cut
off.
OK:
(a) As the voltage is increased, the valve should move
slowly in the
direction.
(b) The valve should return in the
direction.
NG Replace the shift solenoid valve SLN.
OK
2 Check harness and connector between battery and shift solenoid valve SLN,
shift solenoid valve SLN and ECM (See page IN±31).
NG Repair or replace the harness or connector.
OK
Check and replace the ECM.
Page 2899 of 4770
± DIAGNOSTICSAUTOMATIC TRANSAXLE (A541E)
DI±479
714 Author: Date:
DTC P1780 Park/Neutral Position Switch Malfunction
CIRCUIT DESCRIPTION
The park/neutral position switch detects the shift lever position and sends signals to the ECM.
The ECM receives signals (NSW, R, 2 and L) from the park/neutral position switch. When the signal is not
sent to the ECM from the park/neutral position switch, the ECM judges that the shift lever is in D position.
DTC No.DTC Detection ConditionTrouble Area
P1780
When driving under conditions (a) and (b) for 30 seconds or
more, the park/neutral position switch is ON (N position).
(2 trip detection logic)
(a) Vehicle speed: 70 km/h (44 mph) or more
(b) Engine speed: 1,500 ~ 2,500 rpm
Short in park/neutral position switch circuit
Park/neutral position switch
ECM
DI1KC±01
Page 2900 of 4770

D01897
Combination Meter
Ignition Switch Except California, w/ Engine Immobilizer and / or TRAC:
R
2
L8
11
6 C8
13
165
R±B
L±W YIJ1
IG310
1H
1VECM
1
E7
B+ 4
II2 P1
II3D J/C J2910 C8
C8O
Y
R±BY
R 2L
E7
E7
E10 II2 P1
P1
P1D D
J/C J29 E
15
14
B±W A
GR3
6CL±W (*1, *3)
O (*2, *4) LL
2L
RL R±L
J27J28
J/C
10FE E Y
Y
L±W L±W6 5
8
R±BR±BR±B
5
P1 P12
AJ/C
J24
R±LA J27
C
B±W
B
BB
J/C J26
B±W
II2II22
R±L
J28J/C J28
F
J2811
II2
B±WBBJ/C J29NSW
R±L
B±W 1
1
GAUGE
1K 1J I16 I16
I16 I16
1J 1K3
4 Starter B±Y
R 4
8 2
7IG1
AM1
ST2
AM2 1B
2L 2AW
W±R 2
1K AM1
2 1 1
1B 1K5 5
GR (*4)
B±O (*5)
W±R
41
AM2
B
B B±R
B±R
B±R
1
2 F9
F9
ALT
11F4
F6
B±G
BatteryB
C
J8J7GR (*4)
B±O (*5)3
1
2535
2B
2D
2J
2K 11
12
ST
Relay
B±R
Starter
W±BAJ/C J11
IG
Left Kick
Panel Park/Neutral Position Switch
9
J/C CInstrument Panel J/B
Fusible
Link BlockEngine Room J/B No.2
MAIN 3
FL
Main
*1: w/ Engine Immobilizer System
*2: w/o Engine Immobilizer System
*3: TMC Made Ex. USA w/ TRAC
*4: TMMK Made, TMC Made USA w/ TRAC DI±480
± DIAGNOSTICSAUTOMATIC TRANSAXLE (A541E)
715 Author: Date:
WIRING DIAGRAM
Page 2901 of 4770

D01898
Combination Meter
Ignition Switch California, w/ Engine Immobilizer and / or TRAC:
R
2
L8
11
6 C8
13
165
R±B
L±W YIJ1
IG310
1H 1VECM
12
B+ 4
II2 P1
II3D J/C J29 C8
C8O
Y
R±BY
R 2 L
II2
P1
P1
P1D D
J/C J29 E
20
B±W A
GR3
6L±W (*1, *3)
O (*2, *4) LL
2L
RL R±L
J27J28
J/C
10FE E
Y Y
L±W L±W65
8
R±B
R±BR±B
5
P1P12
AJ/C
J24
R±LJ27
B±W
BB
II2II22
R±L
J28J/C J28
F
J28J/C J29NSW
R±L
B±W 1 1
GAUGE
1K1J
I16I16
I16 I16 1J1K3 4
Starter B±Y
R 4
8 2
7IG1
AM1
ST2
AM2 1B
2L 2AW
W±R 2
1K AM1
2 1 1
1B1K5 5
GR (*4)
B±O (*5)
W±R
41
AM2
B
B B±R
B±R
B±R
12
F9 F9
ALT
11
F4F6
B±G
FL
Main
BatteryF
J8
J7GR (*4)
B±O (*5)3
12535
2B
2D
2J2K 11
12
ST
Relay
B±R
Starter
W±BAJ/C J11
IG
Left Kick
Panel *1: w/ Engine Immobilizer System
*2: w/o Engine Immobilizer System
*3: TMC Made Ex. USA w/ TRAC
*4: TMMK Made, TMC Made USA w/ TRAC Park/Neutral Position SwitchE8
3
2
B±W B B
J/C J26II2 11
B±W
B
C9
J/C C
E8
E8E8
3C
CA
Engine Room J/B No.2
MAINInstrument Panel J/B
Instrument Panel J/B
Fusible
Link Block
± DIAGNOSTICSAUTOMATIC TRANSAXLE (A541E)
DI±481
716 Author: Date:
Page 2902 of 4770

BE3840D00052D00836D01914
Except California, w/ Engine Immobilizer
and / or TRAC:
California, w/ Engine Immobilizer
and / or TRAC:ON
L
NSW
2
R
2R
L
NSW
Position
P, N
R
D
2
LNSW±Body
groundR±Body
ground2±Body
groundL±Body
ground
0 V
0 V0 V0 V
0 V
0 V
0 V 0 V
0 V
0 V 0 V
0 V
0 V 9 ~ 14 V*
9 ~ 14 V
9 ~ 14 V
9 ~ 14 V9 ~ 14 V
9 ~ 14 V 9 ~ 14 V* DI±482
± DIAGNOSTICSAUTOMATIC TRANSAXLE (A541E)
717 Author: Date:
INSPECTION PROCEDURE
1 Read PNP, REVERSE, 2ND and LOW signals.
When using TOYOTA hand±held tester.
PREPARATION:
(a) Remove the DLC3 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:
Shift lever into the P, R, N, 2 and L positions, and read the PNP,
REVERSE, 2ND and LOW signals on the TOYOTA hand±held
tester.
OK:
Shift positionSignal
22ND OFF " ON
LLOW OFF " ON
RREVERSE OFF " ON
P, NNSW OFF " ON
When not using TOYOTA hand±held tester.
PREPARATION:
Turn the ignition switch ON.
CHECK:
Measure voltage between terminals NSW, 2, L and R of ECM
and body ground when the shift lever is shifted to the following
positions.
OK:
HINT:
*: The voltage will drop slightly due to lighting up of the back up
light.
Page 2903 of 4770
Q07657
± DIAGNOSTICSAUTOMATIC TRANSAXLE (A541E)
DI±483
718 Author: Date:
OK Proceed to next circuit inspection shown on
matrix chart (See page DI±453).
NG
2 Check park/neutral position switch.
PREPARATION:
(a) Jack up the vehicle.
(b) Remove the park/neutral position switch.
CHECK:
Check continuity between each terminal shown below when the
shift lever is moved to each position.
Shift PositionTerminal No. to continuity
P2 ± 75 ± 6
R2 ± 8±
N2 ± 95 ± 6
D2 ± 10±
22 ± 3±
L2 ± 4±
OK:
There is continuity.
NG Replace the park/neutral position switch.
OK
3 Check harness and connector between battery and park/neutral position switch,
park/neutral position switch and ECM (See page IN±31).
NG Repair or replace the harness and connector.
OK
Check and replace the ECM.
Page 2904 of 4770
D01899
Cruise Control ECU
14
ODY±B7B+
OD1ECM
C15
E10E7
*1: Except California, w/ Engine Immobilizer and / or TRAC
*2: California, w/ Engine Immobilizer and / or TRAC*2
*1
24 DI±484
± DIAGNOSTICSAUTOMATIC TRANSAXLE (A541E)
719 Author: Date:
O/D Cancel Signal Circuit
CIRCUIT DESCRIPTION
While driving uphill with cruise control activated, in order to minimize gear shifting and provide smooth cruis-
ing overdrive may be prohibited temporarily under some condition.
The cruise control ECU sends O/D cut signals to the ECM as necessary and the ECM cancels overdrive
shifting until these signals are discontinued.
WIRING DIAGRAM
DI02S±02