Infiniti G35 (V35). Manual - part 297

ON BOARD DIAGNOSTIC (OBD) SYSTEM

EC-69

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RELATIONSHIP BETWEEN MIL, DTC, 1ST TRIP DTC AND DRIVING PATTERNS EXCEPT  FOR 
“MISFIRE <EXHAUST QUALITY DETERIORATION>”, “FUEL INJECTION SYSTEM”

*1: When the same malfunction is 

detected in two consecutive trips, 
MIL will light up.

*2: MIL will go off after vehicle is driven 

3 times (pattern B) without any mal-
functions.

*3: When the same malfunction is 

detected in two consecutive trips, the 
DTC and the freeze frame data will 
be stored in ECM.

*4: The DTC and the freeze frame data 

will not be displayed any longer after 
vehicle is driven 40 times (pattern A) 
without the same malfunction.
(The DTC and the freeze frame data 
still remain in ECM.)

*5: When a malfunction is detected for 

the first time, the 1st trip DTC and 
the 1st trip freeze frame data will be 
stored in ECM.

*6: 1st trip DTC will be cleared after 

vehicle is driven once (pattern B) 
without the same malfunction.

*7: When the same malfunction is 

detected in the 2nd trip, the 1st trip 
freeze frame data will be cleared.

SEF393SD

EC-70

ON BOARD DIAGNOSTIC (OBD) SYSTEM

EXPLANATION FOR DRIVING PATTERNS EXCEPT  FOR “MISFIRE <EXHAUST QUALITY 
DETERIORATION>”, “FUEL INJECTION SYSTEM”
<Driving Pattern A>

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The A counter will be cleared when the malfunction is detected regardless of (1) - (4).

●

The A counter will be counted up when (1) - (4) are satisfied without the same malfunction.

●

The DTC will not be displayed after the A counter reaches 40.

<Driving Pattern B>

Driving pattern B means the vehicle operation as follows:
All components and systems should be monitored at least once by the OBD system.

●

The B counter will be cleared when the malfunction is detected once regardless of the driving pattern.

●

The B counter will be counted up when driving pattern B is satisfied without any malfunctions.

●

The MIL will go off when the B counter reaches 3 (*2 in OBD SYSTEM OPERATION CHART).

AEC574

BASIC SERVICE PROCEDURE

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BASIC SERVICE PROCEDURE

PFP:00018

Basic Inspection

NBS000N1

1. 

INSPECTION START

1.

Check service records for any recent repairs that may indicate a related malfunction, or a current need for
scheduled maintenance.

2.

Open engine hood and check the following:

–

Harness connectors for improper connections

–

Wiring harness for improper connections, pinches and cut

–

Vacuum hoses for splits, kinks and improper connections

–

Hoses and ducts for leaks

–

Air cleaner clogging

–

Gasket

3.

Confirm that electrical or mechanical loads are not applied.

–

Headlamp switch is OFF.

–

Air conditioner switch is OFF.

–

Rear window defogger switch is OFF.

–

Steering wheel is in the straight-ahead position, etc.

4.

Start engine and warm it up until engine coolant temperature
indicator points the middle of gauge.
Ensure engine stays below 1,000 rpm.

5.

Run engine at about 2,000 rpm for about 2 minutes under no-
load.

6.

Make sure that no DTC is displayed with CONSULT-II or GST.

OK or NG

OK

>> GO TO 3.

NG

>> GO TO 2.

2. 

REPAIR OR REPLACE

Repair or replace components as necessary according to corresponding Diagnostic Procedure.

>> GO TO 3.

SEF983U

SEF976U

SEF977U

EC-72

BASIC SERVICE PROCEDURE

3. 

CHECK TARGET IDLE SPEED

 With CONSULT-II

1.

Run engine at about 2,000 rpm for about 2 minutes under no load.

2.

Rev engine (2,000 to 3,000 rpm) two or three times under no
load, then run engine at idle speed for about 1 minute.

3.

Read idle speed in “DATA MONITOR” mode with CONSULT-II.
Refer to 

EC-76, "IDLE SPEED"

 .

 Without CONSULT-II

1.

Run engine at about 2,000 rpm for about 2 minutes under no load.

2.

Rev engine (2,000 to 3,000 rpm) two or three times under no load, then run engine at idle speed for about
1 minute.

3.

Check idle speed. Refer to 

EC-76, "IDLE SPEED"

 .

OK or NG

OK

>> GO TO 10.

NG

>> GO TO 4.

4. 

PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING

1.

Stop engine.

2.

Perform 

EC-79, "Accelerator Pedal Released Position Learning"

 .

>> GO TO 5.

5. 

PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

Perform 

EC-79, "Throttle Valve Closed Position Learning"

 .

>> GO TO 6.

PBIA8513J

A/T: 650 

±

 50 rpm (in P or N position)

M/T: 650 

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 50 rpm (in Neutral position)

SEF058Y

A/T: 650 

±

 50 rpm (in P or N position)

M/T: 650 

±

 50 rpm (in Neutral position)