TSRM/MK4 Supra/Repair Manual
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p.100

ATTE/A340 Automatic Trans (GTE) — Park Neutral Position Switch Circuit, page 101

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p.102
Park Neutral Position Switch Circuit — MK4 Supra A340 Automatic Trans (GTE), page 101
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Page text (OCR transcript)
AT2–101

A340E (2JZ—GTE) AUTOMATIC TRANSMISSION – TROUBLESHOOTING

Park Neutral Position Switch Circuit

— CIRCUIT DESCRIPTION —

The park/neutral position switch detects the shift lever position and sends signal to ECM.
The ECM receives signals (R, NSW, 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 the D position.

— WIRING DIAGRAM —

Combination Meter
L  2  D  N  R  P
1  8  7  6  10  4

A/T Indicator
Light Switch
27  7  8  36  7
I|1  I|1  I|1  I|1  I|1

ECM
10
L C  3  G-B  E10  2
2  LG-R  LG-R
D O  9  G-R  9
N O  10  L  7
R O  8  R-B  R-B  E10
P C  7  GR

10A GAUGE
Y  23  Y  4
II1

A/T Indicator
Light Switch
(Park/Neutral
Position Switch)

IG SW
4
B-W
7.5A ST
B-W

Park/Neutral
Position Switch
13  77
IJ2  B-W  B  E9  STA
8  5

Q04323