Toyota Venza: Lost Communication with ECM / PCM "A" (U0100,U0129)
DESCRIPTION
The power steering ECU receives signals from the ECM and the brake actuator assembly (skid control ECU) via the CAN communication system.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
U0100 |
Lost communication with ECM/PCM "A" |
|
|
U0129 |
Lost communication with brake system control module |
|
PROCEDURE
|
1. |
CHECK FOR DTC (CAN COMMUNICATION SYSTEM) |
(a) Clear the DTCs (See page .gif)
).
(b) Check for DTCs (See page ).
OK:
DTC is not output.
| OK | .gif) |
CHECK INTERMITTENT PROBLEMS |
| NG | |
GO TO CAN COMMUNICATION SYSTEM |
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. CHECK STEERING EFFORT (TORQUE)
NOTICE:
Some of these service operations may affect the SRS airbags. Read the precautionary
notices concerning the SRS airbag sy ...
Assist Map Number Mismatch (C1582)
DESCRIPTION
When an incorrect ECM or brake actuator assembly (skid control ECU) is installed
after the assist map has been recorded in the power steering ECU, then DTC C1582
is stored because the ...
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DIAGNOSIS SYSTEM
1. DESCRIPTION
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Precaution
PRECAUTION
NOTICE:
When disconnecting the cable from the negative (-) battery terminal, initialize
the following systems after the cable is reconnected.
System Name
See Procedure
Back Door Closer System
...
Correct driving posture
Drive with a good posture as follows:
1. Sit upright and well back in the seat.
2. Adjust the position of the seat forward or backward to ensure the pedals can
be reached and easily depressed to the extent required. 3. Adjust the seatback so
that the c ...
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