Infiniti G20 (P11). Manual — part 26
Terminal
No.
Wire color
Item
Condition
Judgement stan-
dard
(Approx.)
13
G/W
O/D OFF indica-
tor lamp
When setting overdrive control
switch in “OFF” position.
0V
When setting overdrive control
switch in “ON” position.
Battery voltage
15 *2
PU
—
—
—
16
Y
Closed throttle
position switch
(in throttle posi-
tion switch)
When releasing accelerator pedal
after warming up engine.
Refer to “TCM SELF-DIAGNOSTIC
PROCEDURE (No tools)”, AT-49.
Battery voltage
When depressing accelerator pedal
after warming up engine.
Refer to “TCM SELF-DIAGNOSTIC
PROCEDURE (No tools)”, AT-49.
0V
17
LG
Wide open
throttle position
switch
(in throttle posi-
tion switch)
When depressing accelerator pedal
more than half-way after warming
up engine.
Battery voltage
When releasing accelerator pedal
after warming up engine.
0V
18
OR
ASCD cruise
switch
When ASCD cruise is being per-
formed. (“CRUISE” light comes on.)
Battery voltage
When ASCD cruise is not being per-
formed. (“CRUISE” light does not
comes on.)
0V
19
R
Power source
Same as No. 10
20
L/B
Overrun clutch
solenoid valve
When overrun clutch solenoid valve
operates.
Battery voltage
When overrun clutch solenoid valve
does not operate.
0V
22
OR/B
Overdrive control
switch
When setting overdrive control
switch in “ON” position
Battery voltage
When setting overdrive control
switch in “OFF” position
0V
24
W/B
ASCD OD cut
signal
When “ACCEL” set switch on ASCD
cruise is in “D
4
” position.
5 - 8V
When “ACCEL” set switch on ASCD
cruise is in “D
3
” position.
0V
GI
MA
EM
LC
EC
FE
CL
MT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
TCM Terminals and Reference Value (Cont’d)
AT-101
Terminal
No.
Wire color
Item
Condition
Judgement stan-
dard
(Approx.)
25
B
Ground
—
—
26
SB
PNP switch “1”
position
When setting selector lever to “1”
position.
Battery voltage
When setting selector lever to other
positions.
0V
27
L/OR
PNP switch “2”
position
When setting selector lever to “2”
position.
Battery voltage
When setting selector lever to other
positions.
0V
28
P
Power source
(Memory back-up)
or
When turning ignition switch to
“OFF”.
Battery voltage
When turning ignition switch to
“ON”.
Battery voltage
29
W
Revolution sensor
When moving at 20 km/h (12 MPH),
use the CONSULT-II pulse fre-
quency measuring function.*1
CAUTION:
Connect the diagnosis data link
cable to the vehicle diagnosis
connector.
*1: A circuit tester cannot be used
to test this item.
150Hz
When vehicle parks.
Under 1.3V or
over 4.5V
30 *3
G/B
—
—
—
31 *3
GY/L
—
—
—
32
P/L
Throttle position
sensor
(Power source)
Ignition switch “ON”
4.5 - 5.5V
Ignition switch “OFF”.
0V
34
LG
PNP switch “D”
position
When setting selector lever to “D”
position.
Battery voltage
When setting selector lever to other
positions.
0V
35
G
PNP switch “R”
position
When setting selector lever to “R”
position.
Battery voltage
When setting selector lever to other
positions.
0V
36
GY/R
PNP switch “N” or
“P” position
When setting selector lever to “N” or
“P” position.
Battery voltage
When setting selector lever to other
positions.
0V
39
L
Engine speed
signal
Refer to EC-134, “ECM Inspection
Table”.
—
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
TCM Terminals and Reference Value (Cont’d)
AT-102
Terminal
No.
Wire color
Item
Condition
Judgement stan-
dard
(Approx.)
40
Y/G
Vehicle speed
sensor
When moving vehicle at 2 to 3 km/h
(1 to 2 MPH) for 1 m (3 ft) or more.
Voltage varies
between less
than 1V and more
than 4.5V
41
GY
Throttle position
sensor
When depressing accelerator pedal
slowly after warming up engine.
(Voltage rises gradually in response
to throttle position.)
Fully-closed
throttle:
0.5V
Fully-open
throttle:
4V
42
B
Throttle position
sensor
(Ground)
—
—
45
R/G
Stop lamp switch
When depressing brake pedal.
Battery voltage
When releasing brake pedal.
0V
47
BR
A/T fluid tempera-
ture sensor
When ATF temperature is 20°C
(68°F).
1.5V
When ATF temperature is 80°C
(176°F).
0.5V
48
B
Ground
—
—
*2: This terminal is connected to the ECM.
*3: These terminals are connected to the Data link connector.
GI
MA
EM
LC
EC
FE
CL
MT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
TCM Terminals and Reference Value (Cont’d)
AT-103
Wiring Diagram — AT — MAIN
NCAT0031
TAT222
TROUBLE DIAGNOSIS FOR POWER SUPPLY
Wiring Diagram — AT — MAIN
AT-104
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