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:
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
LANE DEPARTURE ALERT SYSTEM
DTC No.
Detection Item
Link
C1A47
Steering Angle Sensor
C1AA0
Front Camera Module Circuit
C1AA1
F ...
Removal
REMOVAL
PROCEDURE
1. REMOVE AIR CONDITIONING CONTROL ASSEMBLY (for Automatic Air Conditioning System)
(See page )
2. REMOVE INTEGRATION PANEL SUB-ASSEMBLY (for Manual Cooler System)
(See page )
3. REMOVE TRANSFER POSITION SWITCH
(a) Detach the 2 claws to remove the transfer pos ...
Heater Circuit (C1AAE)
DESCRIPTION
The forward recognition camera controls the current supplied to the camera heater
(forward recognition hood).
If the forward recognition camera detects a malfunction in the camera heater
(forward recognition hood) circuit, DTC C1AAE is stored.
DTC No.
Detecti ...
