2007 Toyota FJ Cruiser 4WD, AutomaticFACTORY OEM SERVICE PROCEDURE

Definition Of Terms

DEFINITION OF TERMS

Terms Definitions
Monitor Description Description of what ECM monitors and how detects malfunctions (monitoring purpose and details)
Related DTCs A group of diagnostic trouble codes that are output by ECM based on same malfunction detection logic.
Typical Enabling Conditions Preconditions that allow ECM to detect malfunctions.
With all preconditions satisfied, ECM sets DTC when monitored value(s) exceeds malfunction threshold(s)
Sequence of Operation Order of monitor priority, applied if multiple sensors and components involved in single malfunction detection process.
Each sensor and component monitored in turn and not monitored until previous detection operation completed.
Required Sensors/Components Sensors and components used by ECM to detect each malfunction.
Frequency of Operation Number of times ECM checks for each malfunction during each driving cycle.
"Once per driving cycle" means ECM only performs checks for that malfunction once during single driving cycle.
"Continuous" means ECM performs checks for that malfunction whenever enabling conditions met.
Duration Minimum time for which ECM must detect continuous deviation in monitored value(s) in order to set DTC. Timing begins when Typical Enabling Conditions met.
Malfunction Thresholds Values, beyond which, ECM determines malfunctions exist and sets DTCs.
MIL Operation Timing of MIL illumination after defect detected.
"Immediate" means ECM illuminates MIL as soon as malfunction detected.
"2 driving cycles" means ECM illuminates MIL if same malfunction detected second time during next sequential driving cycle.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.