Toyota Tacoma manuals

Toyota Tacoma (2015-2018) Service Manual: Check For Intermittent Problems

CHECK FOR INTERMITTENT PROBLEMS

HINT:

Inspect the vehicle 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.

  1. Clear DTCs (See page Switch the ECM from normal mode to check mode using the Techstream (See ).
  2. Switch the ECM from normal mode to check mode using the Techstream (See page Perform a simulation test (See page ).
  3. Perform a simulation test (See page ). Check and wiggle the harness(es), connector(s) and terminal(s) (See ).
  4. Check and wiggle the harness(es), connector(s) and terminal(s) (See page ).
System Diagram
SYSTEM DIAGRAM ...

How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: Use the following procedure to troubleshoot the manual transaxle system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGH ...

Other materials:

Precaution
PRECAUTION 1. EXPRESSIONS OF IGNITION SWITCH HINT: The type of ignition switch used on this model differs according to the specifications of the vehicle. The expressions listed in the table below are used in this section. Expression Ignition Switch (Position) ...

Removal
REMOVAL PROCEDURE 1. REMOVE AIR CONDITIONING CONTROL ASSEMBLY (for Automatic Air Conditioning System) (See page ) 2. REMOVE INTEGRATION PANEL SUB-ASSEMBLY (for Manual Cooler System) (See page ) 3. REMOVE TRANSFER POSITION SWITCH (a) Detach the 2 claws to remove the transfer pos ...

Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART VSC System DTC Code Detection Item See page C1201 Engine Control System Malfunction C1203 ECM Communication Circuit Malfunction C120B ...

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