Driving Patterns 1, 2, 3 & 4
Driving Pattern:
Driving pattern
- The time required for each diagnosis varies with road surface conditions, weather, altitude, individual driving habits, etc.
Zone A refers to the range where the time required, for the diagnosis under normal conditions*, is the shortest. Zone B refers to the range where the diagnosis can still be performed if the diagnosis is not completed within zone A.
*: Normal conditions refer to the following:
- Sea level
- Flat road
- Ambient temperature: 20 - 30 °C (68 - 86 °F)
- Diagnosis is performed as quickly as possible under normal conditions.
Under different conditions [For example: Ambient temperature is other than 20 - 30 °C (68 - 86 °F)], diagnosis may also be performed.
Pattern 1:
- The engine is started at the engine coolant temperature of -10 to 35 °C (14 to 95 °F) (where the voltage between the ECM terminal (67) and ground is 3.0 - 4.3 V.)
- The engine must be operated at idle speed until the engine coolant temperature is greater than 70 °C (158 °F) (where the voltage between the ECM terminal (67) and ground is lower than 1.4 V.)
- The engine is started at a fuel tank temperature warmer than 0 °C (32 °F) (where the voltage between the ECM terminal (91) and ground is less than 4.1 V).
Pattern 2:
- When steady-state driving is performed again even after it is interrupted, each diagnosis can be conducted. In this case, the time required for diagnosis may be extended.
Pattern 3:
- The driving pattern outlined in *2 must be repeated at least 3 times.
Pattern 4:
- Tests are performed after the engine has been operated for at least 17 minutes.
- The accelerator pedal must be held very steady during steady-state driving.
- If the accelerator pedal is moved, the test must be conducted all over again.
*1: Depress the accelerator pedal until vehicle speed is 90 km/h (56 MPH), then release the accelerator pedal and keep it released for more than 10 seconds. Depress the accelerator pedal until vehicle speed is 90 km/h (56 MPH) again.
*2: Operate the vehicle in the following driving pattern.
1. Decelerate vehicle to 0 km/h (0 MPH) and let it idle.
2. Repeat driving pattern shown at least 10 times.
During acceleration, hold the accelerator pedal as steady as possible.
3. Repeat steps and 2 until the EGR system SRT is set.
*3: Checking the vehicle speed with GST is advised.
Suggested transmission gear position
Set the selector lever in the "D" position with "OD" ON.
Suggested maximum speed in each gear
Downshift to a lower gear if the engine is not running smoothly, or if you need to accelerate.
Do not exceed the maximum suggested speed (shown) in any gear. For level road driving, use the highest gear suggested for that speed. Always observe posted speed limits, and drive according to the road conditions, which will ensure safe operation. Do not over-rev the engine when shifting to a lower gear as it may cause engine damage or loss of vehicle control.
Gear km/h (MPH)
1st 50 (30)
2nd 95 (60)
3rd 145 (90)
4th -
5th -
TEST VALUE AND TEST LIMIT (GST only - not applicable to CONSULT-II)
The following is the information specified in Mode 6 of SAE J1979.
The lest value is a parameter used to determine whether a system/circuit diagnostic test is "OK" or "NG" while being monitored by ECM during self-diagnosis. The test limit is a reference value which is specified as the maximum or minimum value and is compared with the test value being monitored.
Items for which these data (test value and test limit) are displayed are the same as SRT code items (14 test items).
Part 1:
Part 2:
These data (test limit) are specified by Test ID (TID) and Component ID (CID). These data can be displayed on the GST screen.
Emission-Related Diagnostic Information Items Part 1:
Emission-Related Diagnostic Information Items Part 2:
Emission-Related Diagnostic Information Items Part 3:
EMISSION-RELATED DIAGNOSTIC INFORMATION ITEMS