Toyota Tundra Service Manual: Check For Intermittent Problems

Toyota Tundra Service Manual / Engine, Hybrid System / 1ur-fe Engine Control / Sfi System / Check For Intermittent Problems

CHECK FOR INTERMITTENT PROBLEMS

HINT:

Inspect the vehicle's ECM using check mode. Intermittent problems are easier to detect with the Techstream 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.

Clear the DTCs (See page ).
Switch the ECM from normal mode to check mode using the Techstream (See page ).
Perform a simulation test.
Check and wiggle the harness(es), connector(s) and terminal(s).

Brake Override System

Check Mode Procedure

See More:

Toyota Tundra Owners Manual > Do-it-yourself maintenance: Tires
Replace or rotate tires in accordance with maintenance schedules and treadwear. Checking tires Check if the treadwear indicators are showing on the tires. Also check the tires for uneven wear, such as excessive wear on one side of the tread. Check the spare tire condition and pressure if not rotate ...