Toyota Tacoma manuals

Toyota Tacoma (2015-2018) Service Manual: Definition Of Terms

DEFINITION OF TERMS

Term

Definition

Monitor Description

Description of what the ECM monitors and how it detects malfunctions (monitoring purpose and details).

Related DTCs

A group of diagnostic trouble codes that are output by the ECM based on the same malfunction detection logic.

Typical Enabling Conditions

Preconditions that allow the ECM to detect malfunctions.

With all preconditions satisfied, the ECM stores a DTC when the monitored value(s) exceeds the malfunction threshold(s).

Sequence of Operation

Order of monitor priority, applied if multiple sensors and components are involved in a single malfunction detection process.

Each sensor and component is monitored in turn and subsequent items are not monitored until the previous detection operation completes.

Required Sensors/Components

Sensors and components used by the ECM to detect each malfunction.

Frequency of Operation

Number of times the ECM checks for each malfunction during each driving cycle.

"Once per driving cycle" means that the ECM only checks for malfunctions once during a single driving cycle.

"Continuous" means that the ECM checks for malfunctions whenever enabling conditions are met.

Duration

Minimum time for which the ECM must detect continuous deviation in monitored value(s) in order to store a DTC. Timing begins when typical enabling conditions are met.

Typical Malfunction Thresholds

Value beyond which the ECM will determine that there is a malfunction and stores a DTC.

MIL Operation

Timing of MIL illumination after a malfunction is detected.

"Immediate" means that the ECM illuminates the MIL as soon as a malfunction is detected.

"2 driving cycles" means that the ECM illuminates the MIL if the same malfunction is detected again during the next driving cycle.

Cruise Control System(for 2gr-fks)
...

Precaution
PRECAUTION HANDLING PRECAUTION FOR CRUISE CONTROL SYSTEM (a) Turn the cruise control system off using the cruise control main switch (ON-OFF button) when not using the cruise control system. (b) ...

Other materials:

Parts Location
PARTS LOCATION ILLUSTRATION *A for Hydraulic Brake Booster *B for Vacuum Brake Booster *C for Automatic Transmission *D for Manual Transmission *1 SKID CONTROL ECU (BRAKE ACT ...

Brake Warning Light Remains ON
DESCRIPTION The skid control ECU (brake actuator assembly) is connected to the combination meter assembly via CAN communication. If any of the following is detected, the brake warning light remains on: The skid control ECU (brake actuator assembly) connector is disconnected from the ...

Pressure Sensor Circuit (B1423/23)
DESCRIPTION This DTC is stored if refrigerant pressure on the high pressure side is extremely low (176 kPa (1.8 kgf/cm2, 26 psi) or less) or extremely high (3140 kPa (32.0 kgf/cm2, 455 psi) or more). The air conditioner pressure sensor, which is installed on the pipe on the high pressure side ...

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