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 > Instrument cluster: Gauges and meters
Tachometer Displays the engine speed in revolutions per minute Engine oil pressure gauge Displays the engine oil pressure Outside temperature display Displays the outside temperature within the range of -40ºF (-40ºC) to 122ºF (50ºC). Low outside temperature indicator comes on when the ambient t ...