Nissan Silvia. Instruction — part 171

CONSULT-II Reference Value in Data Monitor
Mode

NMEC0773

Specification data are reference values.

MONITOR ITEM

CONDITION

SPECIFICATION

START SIGNAL

I

Ignition switch: ON

,

START

,

ON

OFF

,

ON

,

OFF

ECM Terminals and Reference Value

NMEC0774

Specification data are reference values and are measured between each terminal and ground.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM’s transistor. Use a ground other than ECM terminals, such as the ground.

TERMI-

NAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA (DC Voltage)

34

OR/L

Start signal

[Ignition switch “ON”]

Approximately 0V

[Ignition switch “START”]

9 - 12V

GI

MA

EM

LC

FE

CL

MT

AT

PD

AX

SU

BR

ST

RS

BT

HA

SC

EL

IDX

START SIGNAL

CONSULT-II Reference Value in Data Monitor Mode

EC-199

Wiring Diagram

NMEC0775

TEC810

START SIGNAL

Wiring Diagram

EC-200

Diagnostic Procedure

=NMEC0776

1

INSPECTION START

Do you have CONSULT-II?

Yes or No

Yes

©

GO TO 2.

No

©

GO TO 3.

2

CHECK OVERALL FUNCTION

With CONSULT-II

1. Turn ignition switch “ON”.
2. Check “START SIGNAL” in “DATA MONITOR” mode with CONSULT-II under the following conditions.

SEF227Y

OK or NG

OK

©

INSPECTION END

NG

©

GO TO 4.

3

CHECK OVERALL FUNCTION

Without CONSULT-II

1. Turn ignition switch to “START”.
2. Check voltage between ECM terminal 34 and ground under the following conditions.

SEC423C

OK or NG

OK

©

INSPECTION END

NG

©

GO TO 4.

GI

MA

EM

LC

FE

CL

MT

AT

PD

AX

SU

BR

ST

RS

BT

HA

SC

EL

IDX

START SIGNAL

Diagnostic Procedure

EC-201

4

DETECT MALFUNCTIONING PART

Check the following.

I

Harness connectors M60, F4

I

Fuse block (J/B) connectors M7, E104

I

10A fuse

I

Harness for open or short between ECM and ignition switch

OK or NG

OK

©

GO TO 5.

NG

©

Repair open circuit or short to ground or short to power in harness or connectors.

5

CHECK INTERMITTENT INCIDENT

Perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-82.

©

INSPECTION END

START SIGNAL

Diagnostic Procedure (Cont’d)

EC-202