Classification: EC98-001G
Reference: NTB98-018G
Date: June 7, 2013
SYSTEM READINESS TEST (SRT) DRIVE PATTERNS
This bulletin has been amended. Additional changes were made in "Step 7: Confirm All SRT's Complete".
APPLIED VEHICLES: 1996 and newer Model Years as required by State Emissions Inspection Regulations.
SERVICE INFORMATION
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.
The State Emissions Inspection Station may advise a Nissan customer to return to the dealership for service due to one or more SRT items coming up "INCOMPLETE." Use the information in this Bulletin to help you "COMPLETE" the SRT.
| ^ |
In most cases the ECM will automatically complete its self diagnosis cycle during normal vehicle usage, and the SRT status will indicate "COMPLETE" for each applicable system.
| ^ |
Once indicating "COMPLETE," the SRT status remains "COMPLETE" until the Self Diagnosis memory is erased.
| ^ |
Occasionally, certain portions of the self diagnostic test may not be completed as a result of the customer's normal driving pattern. In these cases the SRT will indicate "INCOMPLETE" for these items.
NOTE:
The SRT will also indicate "INCOMPLETE" if:
| ^ |
The self diagnosis memory is erased for any reason, or
|
| ^ |
The ECM memory power supply is interrupted for several hours.
|
This bulletin contains information to help you perform a comprehensive road test (Drive Pattern) that enables the ECM to complete the SRT.
| ^ |
A separate Drive Pattern sheet for each 1996 and 1997 vehicle variation is included with this Bulletin.
|
| ^ |
For 1998 and newer vehicles, refer to the EC section of the appropriate Service Manual for the required Drive Pattern. They are listed under On Board Diagnostic > System Readiness Test.
|
NOTE:
You must select the Drive Pattern that correctly corresponds with all variables for the vehicle being serviced (i.e. model, model year, engine, emissions certification, transmission, powertrain, and for 1996/1997 models, ECM part number.
NOTE:
To ensure all ECM Self Test requirements are met, it is important to drive the entire Drive Pattern even if only one SRT item indicates "INCOMPLETE."
CLAIMS INFORMATION:
Refer to the current Warranty Flat Rate Manual for claims information.
|
|
|
|
|
|
