Sfi System - Check For Intermittent Problems

Brand:

Toyota

Model Name:

4Runner GRN210 215 UZN210 215

Manual:

Repair Manual

Section:

2Uz-Fe Engine Control System

Title:

Sfi System


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HINT:
Inspect the vehicle's ECM using check mode. Intermittent problems are easier to detect with the intelligent tester when the ECM is in check mode. In check mode, the ECM uses 1 trip detection logic, which is more sensitive to malfunctions than normal mode (default), which uses 2 trip detection logic.
  1. Clear the DTCs (Click here).
  2. Switch the ECM from normal mode to check mode using the intelligent tester (Click here).
  3. Perform a simulation test (Click here).
  4. Check and wiggle the harness(es), connector(s) and terminal(s) (Click here).