Honda NSX-T 1998 Manual page 575

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ECM CONNECTOR D (22P)
ECM CONNECTOR D (22P)
Terminal Wire
number color
VBU (VOLTAGE BACK UP)
1 WHT/YEL
KSR (REAR KNOCK SENSOR
RED/BLU
2
KS1)
K-LINE (DLC)
YEL/GRN
4
ALTF (ALTERNATOR FR SIG-
WHT/RED
5
NAL)
PTANK (FUEL TANK PRES-
6 BLU
SURE SENSOR)
ECT (ENGINE COOLANT TEM-
RED/WHT PERATURE SENSOR)
7
IAT (INTAKE AIR TEMPERA-
8 RED/YEL TURE SENSOR)
MAP (MANIFOLD ABSOLUTE
9 WHT/YEL PRESSURE SENSOR)
VCC2 (SENSOR VOLTAGE)
10 YEL/BLU
11 GRN/BLU SG2 (SENSOR GROUND)
TPS (THROTTLE POSITION
RED/BLK SENSOR)
12
KSF (FRONT KNOCK SENSOR
WHT
13
KS2)
02S FS (FRONT SECONDARY
GRN OXYGEN SENSOR)
16
O2S RS (REAR SECONDARY
WHT/RED OXYGEN SENSOR)
17
O2S FP (FRONT PRIMARY
18 BLU/RED OXYGEN SENSOR)
O2S RP (REAR PRIMARY OXY-
WHT
19 GEN SENSOR)
EGRL (EGR VALVE LIFT SEN-
SOR)
20 WHT/BLK
Table of Contents Table of Contents
Terminal name
Power source for the ECM con-
trol circuit
Power source for the DTC memory
Detects knock sensor signal
Sends or detects PGM tester and
OBD II scan tool signal
Detects alternator FR signal
Detects fuel tank pressure sensor
Detects ECT sensor signal
Detects IAT sensor signal
Detects MAP sensor signal
Provides sensor voltage
Sensor ground
Detects TP sensor signal
Detects knock sensor signal
Detects secondary oxygen sen-
sor signal
Detects secondary oxygen sen-
sor signal
Detects primary oxygen sensor
signal
Detects primary oxygen sensor
signal
Detects EGR valve lift sensor
signal
Wire side of female terminals
NOTE: Standard battery voltage is 12 V.
Decription
Battery voltage at all times
With engine knocking: pulses
With ignition switch ON (II): about 5 V
With fully warmed up engine running:
0 V - 5 V (depending on electrical load)
With fuel fill cap opened: about 2.5 V
With ignition switch ON (II): about
0.1 - 4.8 V (depending on engine coolant
temperature)
With ignition switch ON (II): about
0.1 - 4.8 V (depending on intake air tem-
perature)
With ignition switch ON (II): about 3 V
During idling: about 1.0 V (depending on
engine speed)
With ignition switch ON (II): about 5 V
With ignition switch OFF: 0 V
With throttle fully open: about 4.5 V
With throttle fully closed with fully
warmed up engine: about 0.5 V
With engine knocking: pulses
With throttle fully opened with fully
warmed up engine: above 0.6 V
With throttle quickly closed: below 0.4 V
With throttle fully opened with fully
warmed up engine: above 0.6 V
With throttle quickly closed: below 0.4 V
With throttle fully opened with fully
warmed up engine: above 0.6 V
With throttle quickly closed: below 0.4 V
With throttle fully opened with fully
warmed up engine: above 0.6 V
With throttle quickly closed: below 0.4 V
During idling without vacuum: about 1.2V
With 27 kPa (200 mmHg, 8 in.Hg): about
4.3V
Signal
(cont'd)