Q08577
D00180
ECM
Combination Meter
Battery
Park/Neutral
Position Switch
Fuse Block
Starter
From
Battery
L
2
R
NSW
E7
17
16
15
C12
G
−
W
E7
E7
E7
L
R
2
C12
C12
R
−
B
R
−
B
G
−
W
O
O
IH2
B
−
W
22
4
3
1
2
B
−
W
IG1
ST1
2
4
AM1
2
2
2
2
1
2
AM1
3
J4
EA2
1
8
GAUGE
W
B
F6
FLAM1
B+
IH2
IH1
IH1
B
−
L
B
6
Ignition Switch
4
R/B No. 2
6
6
B
B
Y
Y
1
5
B
−
R
B
−
W
O
G
−
R
R
−
B
S1
S2
10
4
11
2
3
21
7
Y
B
−
Y
1
−
DIAGNOSTICS
AUTOMATIC TRANSMISSION
DI
−
169
1996 LAND CRUISER (RM451U)
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 Condition
Trouble Area
P1780
2 or more switches are ON simultaneously for N, 2 and L posi-
tions (2 trip detection logic)
S
Short in park/neutral position switch circuit
S
Park/neutral position switch
S
ECM
When driving under conditions (a), (b) and (c) for 30 sec. 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
(c) Engine load: 0.6 g/rev. or more
WIRING DIAGRAM
DI5KY
−
02
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Brought to you by BirfMark
Version 1.00 - 12/21/2010