Nissan Primera P11. Manual — part 457
NOTICE
Trouble diagnoses indicates work procedures required to diag-
nose problems effectively. Observe the following instructions
before diagnosing.
1) Before performing trouble diagnoses, read the “Prelimi-
nary Check”, the “Symptom Chart” or the “Work Flow”.
2) After repairs, re-check that the problem has been com-
pletely eliminated.
3) Refer to Component Parts and Harness Connector Loca-
tion for the Systems described in each section for
identification/location of components and harness con-
nectors.
4) Refer to the Circuit Diagram for Quick Pinpoint Check.
If you need to check circuit continuity between harness
connectors in more detail, such as when a sub-harness
is used, refer to Wiring Diagram in each individual sec-
tion and Harness Layout in EL section for identification
of harness connectors.
5) When checking circuit continuity, ignition switch should
be in the “LOCK” position.
6) Before checking voltage at connectors, check battery
voltage.
7) After accomplishing the Diagnostic Procedures and
Electrical Components Inspection, make sure that all
harness connectors are reconnected as they were.
How to Follow Test Groups in Trouble
Diagnoses
Example Type A
SGI800-C
INSPECTION START
CHECK POWER SUPPLY.
1) Turn ignition switch to “ON” posi-
tion.
2) Check voltage between terminal
p
b
and ground.
Battery voltage should exist
OK
E
NG
Check the following
items.
1) Harness continuity
between camshaft
position sensor and
battery
2) Engine relay-1
3) “BR” fusible link
4) Power source for
ECM
5) Ignition switch
CHECK GROUND CIRCUIT.
1) Turn ignition switch to “OFF” posi-
tion.
2) Disconnect camshaft position sen-
sor harness connector.
3) Check resistance between termi-
nal
p
d
and ground.
Resistance:
Approximately 0
Ω
OK
E
NG
Check the following
items.
1) Harness continuity
between camshaft
position sensor and
ground
2) Ground circuit for
ECM
H
H
H
HOW TO FOLLOW TROUBLE DIAGNOSES
GI-35
HOW TO FOLLOW THIS FLOW CHART
Work and diagnostic procedure
Start to diagnose a problem using procedures indicated in
enclosed blocks, as shown in the following example.
CHECK POWER SUPPLY.
1) Turn ignition switch to “ON” posi-
tion.
2) Check voltage between terminal
p
b
and ground.
Battery voltage should exist.
F
Check item being per-
formed.
Procedure, steps or mea-
surement results
Measurement results
Required results are indicated in bold type in the correspond-
ing block, as shown below:
These have the following meanings:
Battery voltage
→
11 - 14V or approximately 12V
Voltage: Approximately 0V
→
Less than 1V
Cross reference of work symbols in the text and
illustrations
Illustrations are provided as visual aids for work procedures.
For example, symbol
indicated in the left upper portion of
each illustration corresponds with the symbol in the flow chart
for easy identification. More precisely, the procedure under
the “CHECK POWER SUPPLY” outlined previously is indi-
cated by an illustration
.
Symbols used in illustrations
Symbols included in illustrations refer to measurements or
procedures. Before diagnosing a problem, familiarize your-
self with each symbol.
Direction mark
Refer to “CONNECTOR SYMBOLS” on GI-15.
HOW TO FOLLOW TROUBLE DIAGNOSES
How to Follow Test Groups in Trouble
Diagnoses (Cont’d)
GI-36
Example Type B
1) Work and diagnostic procedure
Start to diagnose a problem using procedures indicated in
enclosed test groups.
2) Questions and required results.
Questions and required results are indicated in bold type in
test group.
The meaning of are as follows:
a. Battery voltage
→
11 - 14V or approximately 12V
b. Voltage: Approximately 0V
→
Less than 1V
3) Symbol used in illustration
Symbols included in illustrations refer to measurements or
procedures. Before diagnosing a problem, familiarize your-
self with each symbol. For symbols, refer to “CONNECTOR
SYMBOLS” (GI-15) and “Key to Symbols Signifying Mea-
surements or Procedures” (GI-38).
4) Action items
Next action for each test group is indicated based on result
of each question. Test group number is shown in the left
upper portion of each test group.
SGI975
Example
CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch “ON”.
2. Check voltage between combination meter terminal 15
and ground.
Battery voltage should exist.
OK or NG
OK
NG
GO TO 2.
Check the following.
●
10A fuse [No. 7, located in the fuse
block (J/B)]
●
Harness for open or short between
fuse and combination meter
CHECK GROUND CIRCUIT FOR GAUGES
Check continuity between combination meter terminal 23
and ground.
Continuity should exist.
CHECK GAUGE OPERATION
1. Turn ignition switch “ON”.
2. Connect terminals B (Fuel), C (Temp.) and ground with
wire for less than 10 seconds.
Fuel gauge
Water temperature gauge
3. Check operation of gauge.
Gauge should move smoothly to full scale.
OK or NG
OK
NG
GO TO 4.
Repair or replace gauge.
CHECK GROUND CIRCUIT FOR FUEL TANK
GAUGE UNIT
Check harness continuity between fuel tank gauge unit
terminal 2 and ground.
Continuity should exist.
HOW TO FOLLOW TROUBLE DIAGNOSES
How to Follow Test Groups in Trouble
Diagnoses (Cont’d)
GI-37
Key to symbols signifying measurements or procedures
Symbol
Symbol explanation
Symbol
Symbol explanation
Check after disconnecting the connec-
tor to be measured.
Procedure with CONSULT-II.
Check after connecting the connector
to be measured.
Procedure without CONSULT-II.
Insert key into ignition switch.
Procedure with Generic Scan Tool
(GST, E-OBD scan tool)
Remove key from ignition switch.
Procedure without CONSULT-II or GST
Turn ignition switch to “LOCK” position.
A/C switch is “OFF”.
Turn ignition switch to “ON” position.
A/C switch is “ON”.
Turn ignition switch to “START” posi-
tion.
Fan switch is “ON”. (At any position
except for “OFF” position)
Turn ignition switch from “LOCK” to
“ACC” position.
Fan switch is “OFF”.
Turn ignition switch from “ACC” to
“LOCK” position.
Apply positive voltage from battery with
fuse directly to components.
Turn ignition switch from “LOCK” to
“ON” position.
Drive vehicle.
Turn ignition switch from “ON” to
“LOCK” position.
Disconnect battery negative cable.
Do not start engine, or check with
engine stopped.
Depress brake pedal.
Start engine, or check with engine run-
ning.
Release brake pedal.
Apply parking brake.
Depress accelerator pedal.
Release parking brake.
Release accelerator pedal.
Check after engine is warmed up suffi-
ciently.
Pin terminal check for SMJ type ECM
and A/T control unit connectors.
For details regarding the terminal
arrangement, refer to the foldout
page.
Voltage should be measured with a
voltmeter.
Circuit resistance should be measured
with an ohmmeter.
Current should be measured with an
ammeter.
HOW TO FOLLOW TROUBLE DIAGNOSES
How to Follow Test Groups in Trouble
Diagnoses (Cont’d)
GI-38
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