Owners Guide (post-2002-fmt); Readiness for Inspection/Maintenance (I/M) testing; 2007 B-Series - Page 252

2007 Mazda B4000 Truck Mazda B Series Owners Manual

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government emission standards. The OBD-II system also assists your
authorized dealer in properly servicing your vehicle. When the
indicator illuminates, the OBD-II system has detected a malfunction.
Temporary malfunctions may cause the

indicator to illuminate.

Examples are:

1. The vehicle has run out of fuel—the engine may misfire or run

poorly.

2. Poor fuel quality or water in the fuel.
3. The fuel cap may not have been securely tightened. See

Fuel filler

cap

in this chapter.

These temporary malfunctions can be corrected by filling the fuel tank

with good quality fuel and/or properly tightening the fuel cap. After three

driving cycles without these or any other temporary malfunctions
present, the

indicator should turn off—A driving cycle consists of a

cold engine startup followed by mixed city/highway driving. No additional

vehicle service is required.
If the

indicator remains on, have your vehicle serviced at the first

available opportunity.

Readiness for Inspection/Maintenance (I/M) testing

In some localities, it may be a legal requirement to pass an I/M test of
the on-board diagnostics system. If the

indicator is on, refer to the

description in the

Warning lights and chimes

section of the

Instrument Cluster

chapter. Your vehicle may not pass the I/M test with

the

indicator on.

If the vehicle’s powertrain system or its battery has just been serviced,

the on-board diagnostics system is reset to a “not ready for I/M test”

condition. To ready the on-board diagnostics system for I/M testing, a

minimum of 30 minutes of city and highway driving is necessary as

described below:

First, at least 10 minutes of driving on an expressway or highway.

Next, at least 20 minutes driving in stop-and-go, city-type traffic with

at least four idle periods.

Allow the vehicle to sit for at least eight hours without starting the

engine. Then, start the engine and complete the above driving cycle. The

engine must warm up to its normal operating temperature. Once started,

do not turn off the engine until the above driving cycle is complete.

2007 B-Series (mbs)

Owners Guide (post-2002-fmt)

USA (fus)

Maintenance and Specifications

252

Detailed Information for 2007 Mazda B4000 Truck Mazda B Series Owners Manual

Lists of information found in 2007 Mazda B4000 Truck Mazda B Series Owners Manual - Page 252

  • 1. The vehicle has run out of fuel—the engine may misfire or run poorly.
  • 2. Poor fuel quality or water in the fuel.
  • 3. The fuel cap may not have been securely tightened.
  • First, at least 10 minutes of driving on an expressway or highway.
  • Next, at least 20 minutes driving in stop-and-go, city-type traffic with at least four idle periods.

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