Toyota Tacoma manuals

Toyota Corolla Repair Manual: Definition of terms

Term

Definition

Monitor description Description of what the ecm monitors and how it detects malfunction (monitoring purpose and its details).
Related dtcs Diagnostic code
Typical enabling condition Preconditions that allow the ecm to detect malfunction.

With all preconditions satisfied, the ecm sets the dtc when the monitored value(s) exceeds the malfunction threshold(s).

Sequence of operation The priority order that is applied to monitoring, if multiple sensors and components are used to detect the malfunction.

While another sensor is being monitored, the next sensor or component will not be monitored until the previous monitoring has concluded.

Required sensor/components The sensors and components that are used by the ecm to detect malfunction.
Frequency of operation The number of times that the ecm checks for malfunction per driving cycle.
  • Once per driving cycle means that the ecm detects malfunction only one time during a single driving cycle.
  • Continuous means that the ecm detects malfunction every time when enabling condition is met.
Duration The minimum time that the ecm must sense a continuous deviation in the monitored value(s) before setting a dtc. This timing begins after the typical enabling conditions are met.
Malfunction thresholds Beyond this value, the ecm will conclude that there is malfunction and set a dtc.
Mil operation Mil illumination timing after a defect is detected.
  • Immediately means that the ecm illuminates the mil the instant the ecm determines that there is malfunction.
  • 2 Driving cycle means that the ecm illuminates the mil if the same malfunction is detected again in the 2nd driving cycle.
Data list/active test
1. Data list Hint: using the data list displayed by the handheld tester or the obd ii scan tool, you can read the value of the switches, sensors, actuators and so on without parts removal. Readi ...

Toyota/lexus part and system name list
This reference list indicates the part names used in this manual along with their definitions. ...

Other materials:

Overhaul
Notice: when using a vise, do not over tighten. When installing, coat the parts indicated by the arrows with power steering fluid . 1. Remove front wheel rh 2. Drain power steering fluid 3. Remove engine under cover rh 4. Remove fan and generator v belt 5. Disconnect oil reservoir to ...

Engine coolant
The coolant level is satisfactory if it is between the F and L lines on the reservoir when the engine is cold. 1 Reservoir cap 2 F line 3 L line If the level is on or below the L line, add coolant up to the F line. ■Coolant selection Only use Toyota Super Long Life Coola ...

Driving assist systems
To help enhance driving safety and performance, the following systems operate automatically in response to various driving situations. Be aware, however, that these systems are supplementary and should not be relied upon too heavily when operating the vehicle. ◆ ABS (Anti-lock Brake Sys ...

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