Terminal number

Wire colour

Terminal name

Description

Signal

1

GRN/YEL

IMO FPR (IMMOBILIZER FUEL PUMP RELAY)

Drives PGM-FI main relay 2

0 V for 2 seconds after turning ignition switch ON (II), then battery voltage

2

WHT/RED

SHO2S (SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S), SENSOR 2)

Detects secondary HO2S (sensor 2) signal

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

With throttle quickly closed: below 0.4 V

3

BRN/YEL

LG3 (LOGIC GROUND)

Ground for the ECM/PCM control circuit

Less than 1.0 V at all times

4

PNK

SG3 (SENSOR GROUND)

Sensor ground

Less than 1.0 V at all times

6

BLK/WHT

SO2SHTC (SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) HEATER CONTROL)

Drives secondary HO2S heater

With ignition switch ON (II): battery voltage

With fully warmed up engine running: duty controlled

7

RED/YEL

MRLY (PGM-FI MAIN RELAY)

Drives PGM-FI main relay 1 Power source for the DTC memory

With ignition switch ON (II): about 0 V

With ignition switch OFF: battery voltage

9

YEL/BLK

IG1 (IGNITION SIGNAL)

Detects ignition signal

With ignition switch ON (II): battery voltage

With ignition switch OFF: about 0 V

16

LT GRN/BLK

EPSLD (ELECTRICAL POWER STEERING LOAD DETECT)

Detects power steering load signal

At idle with steering wheel in straight ahead position: about 0 V

At idle with steering wheel at full lock: battery voltage momentarily

18

RED

ACC (A/C CLUTCH RELAY)

Drives A/C clutch relay

With compressor ON: about 0 V

With compressor OFF: battery voltage

22

WHT/BLK

BKSW (BRAKE PEDAL POSITION SWITCH)

Detects brake pedal position switch signal

With brake pedal released: about 0 V

With brake pedal pressed: battery voltage

23

LT BLU

K-LINE

Sends and receives scan tool signal

With ignition switch ON (II): pulses or battery voltage

24

YEL

SEFMJ

Communicates with multiplex control unit

With ignition switch ON (II): about 5 V

With engine running under load: pulses

26

BLU

NEP (ENGINE SPEED PULSE)

Outputs engine speed pulse

With engine running: pulses

27

RED/BLU

IMOCD (IMMOBILIZER CODE)

Detects immobiliser signal

29

BRN

SCS (SERVICE CHECK SIGNAL)

Detects service check signal

With the service check signal shorted: about 0 V

With the service check signal opened: about 5 V battery voltage

31

GRN/ORN

MIL (MALFUNCTION INDICATOR LAMP)

Drives MIL

With MIL turned ON: about 0 V

With MIL turned OFF: battery voltage