Toyota Tacoma (2015-2018) Service Manual: Lost Communication with ECM / PCM "A" (U0100-U0142,U0155)
DESCRIPTION
These DTCs are stored when the clearance warning ECU assembly cannot receive and recognize several signals via the CAN communication system.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
U0100 |
Lost Communication with ECM / PCM "A" |
CAN communication system |
|
U0101 |
Lost Communication with TCM |
|
|
U0142 |
Lost Communication with Body Control Module "B" |
|
|
U0155 |
Lost Communication with Instrument Panel Cluster Control Module (Combination Meter) |
HINT:
When 2 or more DTCs starting with "U" are output simultaneously, inspect the connectors and wire harnesses of each ECU.
PROCEDURE
|
1. |
CHECK DTC OUTPUT |
(a) Clear the DTCs (See page .gif)
).
(b) Check for DTCs (See page ).
|
Result |
Proceed to |
|---|---|
|
DTCs (CAN communication system DTC) are output |
A |
|
No DTCs are output |
B |
| A | .gif) |
GO TO CAN COMMUNICATION SYSTEM |
| B | |
USE SIMULATION METHOD TO CHECK |
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Intuitive Parking Assist System
DTC Code
Detection Item
See page
C1AE6
Rear Left Sensor Malfunction
...
Rear Right Center Sensor Malfunction (C1AE8)
DESCRIPTION
The No. 1 ultrasonic sensor (rear center sensor RH) is installed on the rear
bumper. The ECU detects obstacles based on signals received from the No. 1 ultrasonic
sensor (rear center ...
Other materials:
Fuel pump shut off system
To minimize the risk of fuel leakage when the engine stalls or an airbag inflates
upon collision, the fuel pump shut off system stops supplying fuel to the engine.
Follow the procedure below to restart the engine after the system is activated.
Turn the engine switch to the ACC
or LOCK positio ...
Freeze Frame Data
FREEZE FRAME DATA
1. FREEZE FRAME DATA
(a) Whenever a DTC is detected, the blind spot monitor sensor stores the current
vehicle (sensor) state as Freeze Frame Data.
2. CHECK FREEZE FRAME DATA
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the blind spot ...
Input Speed Sensor Circuit No Signal (P0717,P07BF,P07C0)
DESCRIPTION
This sensor detects the rotation speed of the turbine which shows the input turbine
speed of the transmission. By comparing the input turbine speed signal (NT) with
the output shaft speed sensor signal (SP2), the ECM detects the shift timing of
the gears and appropriately controls ...
