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Nissan Silvia. Manual - part 122

CONSULT-II Reference Value in Data Monitor
Mode ........................................................................179
ECM Terminals and Reference Value .....................180
Wiring Diagram ........................................................181
Diagnostic Procedure ..............................................182
Component Inspection.............................................185

PARK/NEUTRAL POSITION (PNP) SWITCH ............186

Component Description ...........................................186
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................186
ECM Terminals and Reference Value .....................186
Wiring Diagram ........................................................187
Diagnostic Procedure ..............................................188

INJECTOR ...................................................................194

Component Description ...........................................194
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................194
ECM Terminals and Reference Value .....................194
Wiring Diagram ........................................................195
Diagnostic Procedure ..............................................196
Component Inspection.............................................198

START SIGNAL...........................................................199

CONSULT-II Reference Value in Data Monitor
Mode ........................................................................199
ECM Terminals and Reference Value .....................199
Wiring Diagram ........................................................200
Diagnostic Procedure ..............................................201

FUEL PUMP.................................................................203

System Description..................................................203
Component Description ...........................................203
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................203
ECM Terminals and Reference Value .....................204
Wiring Diagram ........................................................205

Diagnostic Procedure ..............................................206
Component Inspection.............................................208

IACV-FICD SOLENOID VALVE...................................209

Component Description ...........................................209
ECM Terminals and Reference Value .....................209
Wiring Diagram ........................................................210
Diagnostic Procedure .............................................. 211
Component Inspection.............................................212

POWER STEERING OIL PRESSURE SWITCH.........213

Component Description ...........................................213
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................213
ECM Terminals and Reference Value .....................213
Wiring Diagram ........................................................214
Diagnostic Procedure ..............................................215
Component Inspection.............................................217

ELECTRICAL LOAD SIGNAL.....................................218

CONSULT-II Reference Value in Data Monitor
Mode ........................................................................218
ECM Terminals and Reference Value .....................218
Wiring Diagram ........................................................219
Diagnostic Procedure ..............................................220

MI & DATA LINK CONNECTORS ..............................224

Wiring Diagram ........................................................224

SERVICE DATA AND SPECIFICATIONS (SDS) .......225

Fuel Pressure Regulator..........................................225
Idle Speed and Ignition Timing................................225
Mass Air Flow Sensor..............................................225
Engine Coolant Temperature Sensor ......................225
Fuel Pump ...............................................................225
IACV-AAC Valve ......................................................225
Injector .....................................................................225
Throttle Position Sensor ..........................................225
Heated Oxygen Sensor 1 (Front) Heater ................225

IDX

CONTENTS

(Cont’d)

EC-3

Alphabetical & P No. Index for DTC

NMEC0001

ALPHABETICAL INDEX FOR DTC

NMEC0001S01

X: Applicable

—: Not applicable

Items

(CONSULT-II screen terms)

DTC*1

MIL light up

Reference page

Unable to access ECM

—

EC-67

A/T COMM LINE

0504

—

EC-148

CAMSHAFT POSI SEN

0101

—

EC-90

COOLANT TEMP SEN

0103

EC-105

IGN SIGNAL-PRIMARY

0201

—

EC-110

KNOCK SENSOR

0304

—

EC-137

MASS AIR FLOW SEN

0102

EC-98

NATS MALFUNCTION

1401 - 1406, 1408

—

EL-134

NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.

0505

—

NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.

Flashing*2

—

EC-35

OVERHEAT

0208

EC-120

THROTTLE POSI SEN

0403

EC-141

NOTE:
*1: In Diagnostic Test Mode II (Self-diagnostic results).
*2: While engine is running.

TROUBLE DIAGNOSIS — INDEX

Alphabetical & P No. Index for DTC

EC-4

NUMERICAL INDEX FOR DTC

=NMEC0001S02

X: Applicable

—: Not applicable

DTC*1

Items

(CONSULT-II screen terms)

MIL light up

Reference page

—

Unable to access ECM

EC-67

Flashing*2

NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.

—

EC-35

0101

CAMSHAFT POSI SEN

—

EC-90

0102

MASS AIR FLOW SEN

EC-98

0103

COOLANT TEMP SEN

EC-105

0201

IGN SIGNAL-PRIMARY

—

EC-110

0208

OVERHEAT

EC-120

0304

KNOCK SENSOR

—

EC-137

0403

THROTTLE POSI SEN

EC-141

0504

A/T COMM LINE

—

EC-148

0505

NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.

—

1401 - 1406, 1408

NATS MALFUNCTION

—

EL-134

NOTE:
*1: In Diagnostic Test Mode II (Self-diagnostic results).
*2: While engine is running.

IDX

TROUBLE DIAGNOSIS — INDEX

Alphabetical & P No. Index for DTC (Cont’d)

EC-5

Supplemental Restraint System (SRS) “AIR
BAG”

NMEC0653

The Supplemental Restraint System such as “AIR BAG” used along with a seat belt, helps to reduce the risk
or severity of injury to the driver and front passenger for certain types of collision. The SRS system composi-
tion which is available to NISSAN MODEL S15 is as follows:
The Supplemental Restraint System consists of driver air bag module (located in the center of the steering
wheel), front passenger air bag module (located on the instrument panel on passenger side), a diagnosis
sensor unit, warning lamp, wiring harness and spiral cable.
Information necessary to service the system safely is included in the RS section of this Service Manual.

WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance should be per-
formed by an authorized NISSAN dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the RS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified with yellow harness connector.

Precautions for On Board Diagnostic (OBD)
System of Engine

NMEC0003

The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.

CAUTION:

Be sure to turn the ignition switch OFF and disconnect the negative battery terminal before any
repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc.
will cause the MIL to light up.

Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MIL to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)

Be sure to route and secure the harnesses properly after work. The interference of the harness with
a bracket, etc. may cause the MIL to light up due to the short circuit.

Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM before
returning the vehicle to the customer.

PRECAUTIONS

Supplemental Restraint System (SRS) “AIR BAG”

EC-6

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