Nissan Altima L32. Manual - part 338

IGNITION SIGNAL

EC-473

< COMPONENT DIAGNOSIS >

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Is the inspection result normal?

YES

>> GO TO 10.

NO

>> Replace malfunctioning ignition coil with power transistor.

10.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-42, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection (Ignition Coil with Power Transistor)

INFOID:0000000004349536

1.

CHECK IGNITION COIL WITH POWER TRANSISTOR-I

1. Turn ignition switch OFF.

2. Disconnect ignition coil harness connector.

3. Check resistance between ignition coil terminals as follows.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace malfunctioning ignition coil with power transis-

tor.

2.

CHECK IGNITION COIL WITH POWER TRANSISTOR-II

CAUTION:

Do the following procedure in the place where ventilation is good without the combustible.

1. Turn ignition switch OFF.

2. Reconnect all harness connectors disconnected.

3. Remove fuel pump fuse in IPDM E/R to release fuel pressure.

NOTE:

Do not use CONSULT-III to release fuel pressure, or fuel pressure applies again during the following pro-

cedure.

4. Start engine.

5. After engine stalls, crank it two or three times to release all fuel pressure.

6. Turn ignition switch OFF.

7. Remove all ignition coil harness connectors to avoid the electrical discharge from the ignition coils.

8. Remove ignition coil and spark plug of the cylinder to be checked.

9. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.

10. Connect spark plug and harness connector to ignition coil.

11. Fix ignition coil using a rope etc. with gap of 13 - 17 mm (0.52 -

0.66 in) between the edge of the spark plug and grounded metal

portion as shown in the figure.

12. Crank engine for about three seconds, and check whether spark

is generated between the spark plug and the grounded metal

portion.

CAUTION:

• Do not approach to the spark plug and the ignition coil

within 50 cm (19.7 in). Be careful not to get an electrical

shock while checking, because the electrical discharge

voltage becomes 20kV or more.

• It might cause to damage the ignition coil if the gap of more than 17 mm (0.66 in) is taken.

NOTE:

Terminals

Resistance 

Ω [at 25°C (77°F)]

1 and 2

Except 0 or 

∞

1 and 3

Except 0

2 and 3

PBIB0847E

Spark should be generated.

JMBIA0066GB

EC-474

< COMPONENT DIAGNOSIS >

[QR25DE FOR CALIFORNIA]

IGNITION SIGNAL

When the gap is less than 13 mm (0.52 in), the spark might be generated even if the coil is mal-

functioning.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace malfunctioning ignition coil with power transistor.

Component Inspection (Condenser-2)

INFOID:0000000004349537

1.

CHECK CONDENSER-2

1. Turn ignition switch OFF.

2. Disconnect condenser-2 harness connector.

3. Check resistance between condenser-2 terminals as follows.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace condenser-2.

Terminals

Resistance

1 and 2

Above 1 M

Ω [at 25°C (77°F)]

PBIB0794E

MALFUNCTION INDICATOR LAMP

EC-475

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MALFUNCTION INDICATOR LAMP

Description

INFOID:0000000004349538

The Malfunction Indicator Lamp (MIL) is located on the combination

meter.

The MIL will light up when the ignition switch is turned ON without

the engine running. This is a bulb check.

When the engine is started, the MIL should go off. If the MIL remains

on, the on board diagnostic system has detected an engine system

malfunction.

For details, refer to 

EC-475, "Diagnosis Procedure"

.

Component Function Check

INFOID:0000000004349539

1.

CHECK MIL FUNCTION

1. Turn ignition switch ON.

2. Make sure that MIL lights up.
Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Go to 

EC-475, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000004349540

1.

CHECK DTC

Check that DTC UXXXX is not displayed.
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Perform trouble diagnosis for DTC UXXXX.

2.

CHECK DTC WITH METER

Refer to 

MWI-38, "CONSULT-III Function (METER/M&A)"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace.

3.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-42, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace combination meter.

NO

>> Repair or replace.

SEF217U

EC-476

< COMPONENT DIAGNOSIS >

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ON BOARD REFUELING VAPOR RECOVERY (ORVR)

ON BOARD REFUELING VAPOR RECOVERY (ORVR)

Description

INFOID:0000000004349541

From the beginning of refueling, the air and vapor inside the fuel tank go through refueling EVAP vapor cut

valve and EVAP/ORVR line to the EVAP canister. The vapor is absorbed by the EVAP canister and the air is

released to the atmosphere.

When the refueling has reached the full level of the fuel tank, the refueling EVAP vapor cut valve is closed and

refueling is stopped because of auto shut-off. The vapor which was absorbed by the EVAP canister is purged

during driving.

WARNING:

When conducting inspections below, be sure to observe the following:

• Put a “CAUTION: FLAMMABLE” sign in workshop.

• Do not smoke while servicing fuel system. Keep open flames and sparks away from work area.

• Be sure to furnish the workshop with a CO

2

 fire extinguisher.

CAUTION:

• Before removing fuel line parts, carry out the following procedures:

- Put drained fuel in an explosion-proof container and put lid on securely.

- Release fuel pressure from fuel line. Refer to 

EC-550, "Inspection"

.

- Disconnect battery ground cable.

• Always replace O-ring when the fuel gauge retainer is removed.

• Do not kink or twist hose and tube when they are installed.

• Do not tighten hose and clamps excessively to avoid damaging hoses.

• After installation, run engine and check for fuel leaks at connection.

• Do not attempt to top off the fuel tank after the fuel pump nozzle shuts off automatically.

Continued refueling may cause fuel overflow, resulting in fuel spray and possibly a fire.

Component Function Check

INFOID:0000000004349542

1.

CHECK ORVR FUNCTION

Check whether the following symptoms are present.

• Fuel odor from EVAP canister is strong.

• Cannot refuel/Fuel odor from the fuel filler opening is strong while refueling.
Is any symptom present?

YES

>> Go to 

EC-476, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000004349543

1.

INSPECTION START

Check whether the following symptoms are present.

A: Fuel odor from EVAP canister is strong.

JMBIA1930GB