Toyota Tacoma (2015-2018) Service Manual: Lost Communication with ECM / PCM "A" (U0100,U0126,U0129,U0142)
DESCRIPTION
These DTCs are stored if there is a malfunction in the CAN communication system connected to the blind spot monitor sensor.
HINT:
If CAN communication system DTCs are stored, they may also be stored for other systems.
|
DTC Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
U0100 |
Lost communication with ECM |
CAN communication system |
|
U0126 |
Lost communication with steering sensor |
|
|
U0129 |
Lost communication with skid control ECU (brake actuator assembly) |
|
|
U0142 |
Lost communication with main body ECU (driver side junction block assembly) |
CAUTION / NOTICE / HINT
NOTICE:
When checking for DTCs, make sure that the blind spot monitor main switch assembly (warning canceling switch assembly) is on.
PROCEDURE
|
1. |
CHECK DTC |
(a) Clear the DTCs (See page .gif)
).
(b) Check for DTCs (See page ).
|
Result |
Proceed to |
|---|---|
|
DTCs are output |
A |
|
No DTCs are output |
B |
HINT:
- If CAN communication system DTCs are stored, they may also be stored for other systems.
- If the CAN communication system has been inspected and repaired, the DTCs will not be output when rechecking for DTCs.
- If these DTCs are output frequently, duplicate the conditions that cause
the problem symptoms and perform the inspection again, even though the DTC
was not output when rechecking for DTCs (See page
).
| A | .gif) |
GO TO CAN COMMUNICATION SYSTEM |
| B | |
USE SIMULATION METHOD TO CHECK |
Lost Communication with Blind Spot Monitor Slave Module (U0232)
DESCRIPTION
This DTC is stored when the blind spot monitor sensor LH judges that there is
a communication problem with the blind spot monitor sensor RH.
DTC Code
DTC Detectio ...
Short to +B in Buzzer (C1ABD,C1ABE)
DESCRIPTION
DTC C1ABD is stored when the blind spot monitor sensor RH detects a
+B short in rear cross traffic alert buzzer (blind spot monitor buzzer)
circuit.
DTC C1ABE is stored ...
Other materials:
Washer Level Warning Switch
Components
COMPONENTS
ILLUSTRATION
Inspection
INSPECTION
PROCEDURE
1. INSPECT LEVEL WARNING SWITCH ASSEMBLY
HINT:
This check should be performed with the windshield washer motor and pump assembly
installed on the washer jar.
(a) Fill the washer jar with washer fluid.
(b) ...
Traction Off Switch
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE ROOF CONSOLE BOX ASSEMBLY
(See page )
2. REMOVE A-TRAC SWITCH (TRACTION CONTROL SWITCH)
(a) Disconnect the A-TRAC switch (traction control switch) connector.
(b) Using a screwdriver, detach the 2 claws ...
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 ...
