NHTSA ID Number: 10192192
Manufacturer Communication Number: NTB98018G
TSB/Document Date: 2021-05-10
Summary
As part of an enhanced emissions test for Inspection & Maintenance (I/M), some States may require the System Readiness Test (SRT) status be checked. - The SRT is used to indicate whether the engine control module (ECM) has completed self diagnosis of major emissions systems and components. - In these instances the State may require completion of the SRT before permitting the emissions inspection to proceed. Refer to this Bulletin for further details.
CATALYST
Use ASCD or hold accelerator
to keep road speed as steady
as possible.
A/C switch: ON
ENG. RPM: 1,800 - 2,100
Selector lever: "D" (OD ON)
B/F SCHDL:
More than 1.8 msec
Steady state cruise at
53 - 58 MPH
Drive 3 minutes
6*
NTB98-018g
A/C switch
ON - adds engine load to increase B/FUEL SCHDL.
OFF - Lowers engine load to decrease B/FUEL SCHDL.
Idle
1 minute
Downshift then completely
release accelerator more
than 5 seconds without
braking, then idle 1minute.
Selector lever:
"D" (OD OFF)
Dark shading behind section number indicates this drive pattern section must be repeated, without turning the ignition off, if it is interrupted by releasing
the accelerator when not directed to do so.
Add fuel when directed
7*
Downshift
then decel.
O2 SENSOR
If fuel level is greater than 1/2 more time may be required to complete EVAP sections of the drive pattern. Also you may be unable to add fuel as required.
NOTE: It is better to perform this driving test when fuel level is less than 1/2.
Engine coolant
temperature
must be below
70˚C (158˚F)
before starting
engine for either
the first or
second trip.
Pre-check
Two Trip Logic
First Trip: Drive all sections 1 through 9.
Second Trip: Turn ign. off. Add 4 gallons fuel. Start engine and drive sections 4, 5, 6, 7, 8, 9.
SRT Status, Address: 1000
ECM Part Numbers: 23710-54U10, -54U11, -54U12, -54U13, -54U14, -54U15, -56U70, -56U71, -56U72, -56U73, -56U74.
System Readiness Test Drive Pattern #12
Hold the accelerator
pedal as steady as
possible. Allow road
speed to change
if necessary.
ASCD
A/C switch: OFF
Selector lever:
"D" (OD OFF)
Steady state cruise at
31 - 44 MPH
Drive 2 minutes
9*
2nd trip:
End.
1st trip:
key off
then
repeat
4 - 9.
Gear position necessary
to obtain RPM range and
B/FUEL SCHDL.
'96 Maxima A/T
Do not completely
release accelerator.
ASCD
A/C switch: OFF
Accelerate to 41 MPH
Decelerate to 34 MPH
Accelerate to 41 MPH
B/F SCHDL:
Less than 2.0 msec
Selector lever: "2"
ENG RPM:
Approx..3,000 RPM
Idle
1 minute
EVAP SYSTEM
8*
Drive 2 minutes
SRT DRIVE PATTERN LAYOUT
Do not use ASCD
(cruise control)
Vehicle Identification
Always match vehicle and
ECM part number to correct
drive pattern sheet.
Tips to help ensure
required vehicle conditions
are met.
ASCD
Drive pattern section
number refer to notes
when shading is dark.
SRT system tested
SRT Drive Pattern Layout
Drive 3 minutes
Idle 1.5 minutes
13/58
*
B/F SCHDL: 1.5 - 1.7 msec
70˚C (158˚F)
before starting
engine.
ENG. RPM:
1,800 - 3,000
B/F SCHDL:
2.5 - 4.2 msec
A/C switch: ON
ENG. RPM: 2,100 - 2,200
B/F SCHDL: More than 1.5 msec
Selector lever: "5th"
Use ASCD or hold accelerator to keep
road speed as steady as possible.
Steady state cruise at: 53 - 58 MPH
Downshift then completely
release accelerator more
than 5 seconds without
braking, then idle 1 minute
in neutral or park.
Idle
1 minute
7*
Selector lever:
"4th"
Downshift
then decel.
O2 SENSOR
End
'96 Altima (FED) M/T
Do not decelerate for more than
3 consecutive seconds.
Keep engine speed above 3,000 RPM.
Allow road speed to vary if necessary.
Selector lever: "4th"
Drive 3 minutes
Drive 3 minutes
Cruise at 50 - 60 MPH
6*
5*
Selector lever: "5th"
Then cycle ignition switch OFF
for 10 seconds. Restart engine
and immediately begin next
drive pattern section.
Allow engine to idle for at least
10 minutes.
4
CATALYST
Drive at 55 - 75 MPH
Drive 1.5 minutes
3*
ENGINE COMPARTMENT
WARM-UP
Dark shading behind section number indicates this drive pattern section must be repeated, without turning the ignition off, if it is interrupted by releasing
the accelerator when not directed to do so.
ASCD
A/C switch: ON
ENG. RPM: 1,600 - 2,000
Selector lever: "4th"
Hold recommended B/F SCHDL
range. Allow road speed to vary
as necessary.
Start engine and idle at
least 1.5 minutes.
2*
1*
Engine coolant
temperature
must be below
Pre-check
One Trip Logic for all sections.
Drive all sections one time.
ECM Part Numbers: 23710-5E400, -5E401, -5E402, -5E403, -5E404
System Readiness Test Drive Pattern #1
Pattern #1; ‘96 Altima (FED) M/T
NTB98-018g
14/58
*
Start engine and
idle at least 1.5 minutes.
Drive 3 minutes
Idle 1.5 minutes
ASCD
A/C switch: ON
ENG. RPM: 1,200 - 1,400
Selector lever: "D" (OD ON)
B/F SCHDL: 2.0 - 2.2 msec
Hold recommended B/F SCHDL
range. Allow road speed to vary
as necessary.
2*
1*
ENG. RPM:
1,800 - 3,000
B/F SCHDL:
2.5 - 4.2 msec
Selector lever: "D" (OD OFF)
A/C switch: ON
ENG. RPM: 1,800 - 2,000
B/F SCHDL: More than 1.8 msec
Selector lever: "D" (OD ON)
Use ASCD or hold accelerator to keep
road speed as steady as possible.
Steady state cruise at: 53 - 58 MPH
Drive 3 minutes
6*
Downshift then completely
release accelerator more
than 5 seconds without
braking, then idle 1 minute
in neutral or park.
Idle
1 minute
7*
Selector lever:
"D" (OD OFF)
Downshift
then decel.
O2 SENSOR
End
'96 Altima (FED) A/T
Do not decelerate for more than
3 consecutive seconds.
Keep engine speed above 3,000 RPM.
Allow road speed to vary if necessary.
Cruise at 50 - 60 MPH
Drive 3 minutes
5*
Drive at 55 - 75 MPH
Then cycle ignition switch OFF
for 10 seconds. Restart engine
and immediately begin next
drive pattern section.
Allow engine to idle for at least
10 minutes.
4
CATALYST
Selector lever:
"D" (OD ON)
Drive 1.5 minutes
3*
ENGINE COMPARTMENT
WARM-UP
Dark shading behind section number indicates this drive pattern section must be repeated, without turning the ignition off, if it is interrupted by releasing
the accelerator when not directed to do so.
Engine coolant
temperature
must be below
70˚C (158˚F)
before starting
engine.
Pre-check
One Trip Logic for all sections.
Drive all sections one time.
ECM Part Numbers: 23710-5E410, -5E411, -5E412, -5E413, -5E414
System Readiness Test Drive Pattern #2
Pattern #2; ’96 Altima (FED) A/T
NTB98-018g
15/58
*
Start engine and idle at
least 1.5 minutes.
Drive 3 minutes
Idle 1.5 minutes
ASCD
A/C switch: ON
ENG. RPM: 1,600 - 2,000
Selector lever: "4th"
B/F SCHDL: 1.5 - 1.7 msec
Hold recommended B/F SCHDL
range. Allow road speed to vary
as necessary
2*
1*
O2 Sensor Heater
ENG. RPM:
2,000 - 2,800
B/F SCHDL:
2.5 - 4.2 msec
A/C switch: ON
ENG. RPM: 2,100 - 2,200
B/F SCHDL: More than 1.5 msec
Selector lever: "5th"
Use ASCD or hold accelerator to keep
road speed as steady as possible.
Steady state cruise at: 53 - 58 MPH
Drive 3 minutes
6*
Downshift then completely
release accelerator more
than 5 seconds without
braking, then idle 1 minute
in neutral or park.
Idle
1 minute
7*
Selector lever:
"4th"
Downshift
then decel.
O2 SENSOR
End
'96 Altima (CAL) M/T
Do not decelerate for more than
3 consecutive seconds.
Keep engine speed above 3,000 RPM.
Allow road speed to vary if necessary.
Cruise at 50 - 60 MPH
Selector lever: "4th"
Drive 3 minutes
5*
Drive at 55 - 75 MPH
Then cycle ignition switch OFF
for 10 seconds. Restart engine
and immediately begin next
drive pattern section.
Allow engine to idle for at least
10 minutes.
4
CATALYST
Selector lever: "5th"
Drive 1.5 minutes
3*
ENGINE COMPARTMENT
WARM-UP
Dark shading behind section number indicates this drive pattern section must be repeated, without turning the ignition off, if it is interrupted by releasing
the accelerator when not directed to do so.
Engine coolant
temperature
must be below
32˚C (95˚F)
before starting
engine.
Pre-check
One Trip Logic for all sections.
Drive all sections one time.
ECM Part Numbers: 23710-5E500
System Readiness Test Drive Pattern #3
Pattern #3; ‘96 Altima (CAL) M/T
NTB98-018g
16/58
Drive 3 minutes
Idle 1.5 minutes
B/F SCHDL: 1.5 - 1.7 msec
- 6X better wear protection on critical engine parts than...
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TSB/Document ID: NTB98018G
Replacement Service Bulletin Number:
MFR Communication Date: 2013-06-07
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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