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)
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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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