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.
- Clear DTCs (See page
.gif)
). - Switch the ECM from normal mode to check mode using the Techstream (See
page ).
- Perform a simulation test (See page
).
- 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:
Removal
REMOVAL
PROCEDURE
1. REMOVE TIMING CHAIN COVER ASSEMBLY
(See page )
2. SEPARATE NO. 2 WATER BY-PASS PIPE (for Vacuum Brake Booster)
3. REMOVE VACUUM PUMP ASSEMBLY (for Vacuum Brake Booster)
4. SET NO. 1 CYLINDER TO TDC/COMPRESSION
5. REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY
6. REMO ...
Dtc Check / Clear
DTC CHECK / CLEAR
CHECK DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Chassis / LKA/LDA / Trouble Codes.
(e) Check for DTCs.
Click here
CLEAR DTC
(a) Connect the Techstream to the DLC3.
(b) Turn ...
Precaution
PRECAUTION
1. EXPRESSIONS OF IGNITION SWITCH
(a) 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)
Engi ...
