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:
Cruise SET Indicator Light Circuit
DESCRIPTION
The ECM illuminates the cruise control SET indicator by sending indicator output
demand signals to the combination meter assembly via CAN communication. The cruise
control SET indicator illuminates when the dynamic radar cruise control system is
controlling vehicle speed. The crui ...
Front Radar Sensor (C1A10)
DESCRIPTION
C1A10 is output when there is an internal malfunction in the millimeter wave
radar sensor assembly.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
C1A10
Front Radar Sensor
While the vehicl ...
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT FOR COOLANT LEAK
HINT:
The sliding surface inside the engine water pump assembly is lubricated
by engine coolant. As some engine coolant is discharged during normal operation,
engine coolant residue (solids) may be found on the drain plu ...
