Terminal number

Wire colour

Terminal name

Description

Signal

1

BLK/WHT

PO2SHTC (PRIMARY HEATED OXYGEN SENSOR (PRIMARY HO2S) HEATER CONTROL)

Drives primary HO2S heater

With ignition switch ON (II): battery voltage

With fully warmed up engine running: duty controlled

2

YEL/BLK

IGP2 (POWER SOURCE)

Power source for the ECM/PCM circuit

With the ignition switch ON (II): battery voltage

With the ignition switch OFF: about 0 V

3

YEL/BLK

IGP1 (POWER SOURCE)

Power source for the ECM/PCM circuit

With the ignition switch ON (II): battery voltage

With the ignition switch OFF: about 0 V

4

BLK

PG2 (POWER GROUND)

Ground for the ECM/PCM circuit

Less than 1.0 V at all times

5

BLK

PG1 (POWER GROUND)

Ground for the ECM/PCM circuit

Less than 1.0 V at all times

6

WHT

PHO2S (PRIMARY HEATED OXYGEN SENSOR (PRIMARY HO2S), SENSOR 1)

Detects primary HO2S sensor (sensor 1) signal

With throttle fully opened from idle with fully warmed up engine: about 0.6 V

With throttle quickly closed: below 0.4 V

7

BLU

CKP (CRANKSHAFT POSITION (CKP) SENSOR)

Detects CKP sensor signal

With engine running: pulses

8

YEL

VCCR (SENSOR VOLTAGE RETURN)

Detects sensor voltage

With ignition switch ON (II): about 5 V

With the ignition switch OFF: about 0 V

9

RED/BLU

KS (KNOCK SENSOR)

Detects knock sensor signal

With engine knocking: pulses

With ignition switch ON (II): about 5 V

10

GRN/YEL

SG2 (SENSOR GROUND)

Sensor ground

Less than 1.0 V at all times

11

GRN/WHT

SG1 (SENSOR GROUND)

Sensor ground

Less than 1.0 V at all times

12

BLK/RED

IACV (IDLE AIR CONTROL (IAC) VALVE)

Drives IAC valve

With engine running: duty controlled

With ignition switch ON (II): about 5 V

13

WHT/BLK

EGRP (EXHAUST GAS RECIRCULATION (EGR) VALVE POSITION SENSOR)

Detects EGR valve position sensor signal

With engine running: 1.2 V-2.0 V

(depending on EGR valve lift)

15

RED/BLK

TPS (THROTTLE POSITION (TP) SENSOR)

Detects TP sensor signal

With throttle fully open: about 4.8 V

With throttle fully closed: about 0.5 V

18

WHT/GRN

VSS (VEHICLE SPEED SENSOR (VSS))

Detects VSS signal

With ignition switch ON (II) and front wheels rotating: cycles 0 V-about 5 V or battery voltage