Toyota Tacoma 2015-2018 Service Manual: Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) When troubleshooting a vehicle with a diagnosis system, the only difference from the usual troubleshooting procedure is connecting the Techstream to the vehicle and reading various data output from the clearance warning ECU assembly.
The clearance warning ECU assembly stores DTCs when the ECU detects a malfunction in the ECU itself or in its circuits.
To check the DTCs, connect the Techstream to the DLC3 on the vehicle. The Techstream makes it possible to clear the DTCs, activate the various actuators, and check the freeze frame data and Data List.
2. CHECK DLC3
(a) Check the DLC3 (See page .gif)
).
Terminals Of Ecu
TERMINALS OF ECU
1. CLEARANCE WARNING ECU ASSEMBLY
(a) Disconnect the C30 connector from the clearance warning ECU assembly.
(b) Measure the voltage and resistance according to the value(s) in th ...
Dtc Check / Clear
DTC CHECK / CLEAR
1. CHECK DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the back sonar or clearance sonar switch assembly on.
(d) Turn the Techstream o ...
Other materials:
Inspection
INSPECTION
PROCEDURE
1. INSPECT FRONT SUSPENSION LOWER ARM
(a) Flip the ball joint stud back and forth 5 times, as shown in the illustration,
before installing the nut.
(b) Using a torque wrench, turn the nut continuously at a rate of 2 to 4 seconds
per turn and take the torque reading on ...
Steering Angle Sensor Communication Stop Mode
DESCRIPTION
Detection Item
Symptom
Trouble Area
Steering Angle Sensor Communication Stop Mode
Either condition is met:
Communication stop for "Spiral cable (Steering Angle Sensor)"
is indicated on the "C ...
Runnable Signal Malfunction (B2286,P0335)
DESCRIPTION
These DTCs are stored when the engine speed signal sent by the ECM via direct
line and the engine speed signal sent via CAN communication do not match.
HINT:
When the cable is disconnected and reconnected to the negative (-) battery terminal,
the power source mode returns to the s ...
