1998 NISSAN PATROL relay

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Page 119 of 192

NISSAN PATROL 1998 Y61 / 5.G Engine Control Workshop Manual DIAGNOSTIC PROCEDURE
INSPECTION START
CHECK COOLING FAN OPERATION.
1. Turn ignition switch ``OFF.
2. Turn ignition switch ``ON.
3. Perform ``COOLING FAN in
``ACTIVE TEST mode with
CONSULT and

Page 120 of 192

NISSAN PATROL 1998 Y61 / 5.G Engine Control Workshop Manual jA
CHECK OUTPUT SIGNAL CIRCUIT.
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM
terminal
V14and terminalV1.
Continuity should exist.
If OK, check harness for short to grou

Page 123 of 192

NISSAN PATROL 1998 Y61 / 5.G Engine Control Workshop Manual COMPONENT INSPECTION
Cooling fan relay-1
Check continuity between terminalsV3andV5.
Conditions Continuity
12V direct current supply between
terminals
V1andV2Ye s
No current supply No
If NG, replace re

Page 132 of 192

NISSAN PATROL 1998 Y61 / 5.G Engine Control Workshop Manual Fuel Cut Solenoid Valve
When the ignition switch is OFF, the ECM turns the fuel cut sole-
noid valve OFF (under this condition, no current ¯ows through the
fuel cut solenoid valve), shutting off fuel

Page 153 of 192

NISSAN PATROL 1998 Y61 / 5.G Engine Control Workshop Manual Glow Control System
SYSTEM DESCRIPTION
Crankshaft position sensor (TDC)cEngine speed
ECMcGlow relaycGlow plugs
Engine coolant temperature sensorcEngine coolant temperaturecGlow lamp
When engine coolan

Page 155 of 192

NISSAN PATROL 1998 Y61 / 5.G Engine Control Workshop Manual DIAGNOSTIC PROCEDURE
INSPECTION START
Check fuel level, fuel supplying system,
starter motor, etc.
OK
cNG
Correct.
Check that all glow plug connecting plate
nuts are installed properly.
OK
cNG
Install

Page 156 of 192

NISSAN PATROL 1998 Y61 / 5.G Engine Control Workshop Manual jA
CHECK COMPONENTS
(Glow relay, Glow plug).
Refer to ``COMPONENT INSPECTION,
EC-155.
OK
cNG
Replace malfunctioning
component(s).
Disconnect and reconnect harness connec-
tors in the circuit. Then r

Page 157 of 192

NISSAN PATROL 1998 Y61 / 5.G Engine Control Workshop Manual 3. After-glow system
a. Connect ``S terminal to starter motor.
b. Start engine and read voltage.
Voltage:
Battery voltage for 5* minutes
* Engine coolant temperature is lower than 50ÉC
(122ÉF).
CO
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