DESCRIPTION
The power steering ECU assembly receives vehicle speed signals from the master cylinder solenoid (skid control ECU) via CAN communication. The power steering ECU assembly provides appropriate assisting force in accordance with the vehicle speed signal.
DTC Code |
DTC Detection Condition |
Trouble Area |
---|---|---|
C1541 |
An abnormal vehicle speed signal is received. |
|
PROCEDURE
1. |
CHECK OTHER DTC OUTPUT (CAN COMMUNICATION SYSTEM) |
(a) Check if DTC U0129 is output (See page ).
Result |
Proceed to |
---|---|
DTC U0129 is not output. |
A |
DTC U0129 is output. |
B |
HINT:
DTC U0129 indicates a CAN communication malfunction in the power steering system.
B | ![]() |
GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) |
|
2. |
CHECK OTHER DTC OUTPUT (VEHICLE STABILITY CONTROL SYSTEM) |
(a) Using the Techstream, check for DTCs and confirm that there are no problems
in the vehicle stability control system (See page
).
Result |
Proceed to |
---|---|
DTC is not output. |
A |
DTC is output. |
B |
A | ![]() |
REPLACE POWER STEERING ECU ASSEMBLY |
B | ![]() |
GO TO VEHICLE STABILITY CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) |
Removal
REMOVAL
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for both the RH and LH sides.
The procedure listed below is for the LH side.
PROCEDURE
1. REMOVE ROOF HEADLINING ASSEMBLY
(See page )
2. REMOVE ROOF SIDE RAIL GARNISH ASSEMB ...
No Response from ID BOX (B2789)
DESCRIPTION
This DTC is stored when LIN communication between the certification ECU and ID
code box stops for 10 seconds or more.
DTC Code
DTC Detection Condition
Trouble Area
B2789
No communicat ...