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 ...
Other materials about Toyota Venza:
Power Mirror Control System(w/o Memory)
Parts Location
PARTS LOCATION
ILLUSTRATION
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms. If multiple
suspected areas are listed, the potential causes of the symptoms are l ...
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
If a trouble code is displayed during the DTC check, check the trouble areas
listed for that code in the table below and proceed to the appropriate page.
Cruise Control System
DTC Code
Detection Item
...
Operation Check
OPERATION CHECK
1. CHECK WINDOW LOCK SWITCH
HINT:
Before performing the window lock switch operation check, make sure that the
window lock switch is off (the switch is not pushed in).
(a) Check that the front passenger and rear windows cannot be operat ...
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