Toyota Camry (XV70): Vehicle Speed Signal (C1541)
DESCRIPTION
The power steering ECU (rack and pinion power steering gear assembly) receives vehicle speed signals from the skid control ECU (brake actuator assembly) via CAN communication. The ECU provides appropriate assist force in accordance with the vehicle speed based on the signals.
|
DTC No. | Detection Item |
DTC Detection Condition |
Trouble Area | Warning Indicate |
Return-to-normal Condition |
Note |
|---|---|---|---|---|---|---|
| C1541 |
Vehicle Speed Signal |
A vehicle speed signal malfunction is detected |
| EPS warning light: Comes on |
The ECU judges the system has returned to normal |
- |
CAUTION / NOTICE / HINT
NOTICE:
If the rack and pinion power steering gear assembly has been replaced, perform assist map writing and torque sensor zero point calibration.
Click here .gif)
PROCEDURE
|
1. | CHECK CAN COMMUNICATION SYSTEM |
(a) Check if DTC U0129 is output.
Chassis > EMPS > Trouble Codes|
Result | Proceed to |
|---|---|
|
DTC U0129 is not output. |
A |
| DTC U0129 is output. |
B |
| A | .gif) |
GO TO BRAKE CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) w/ Electric Parking Brake System: Click here
w/o Electric Parking Brake System: Click here
|
| B | |
GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) |
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DESCRIPTION When a problem occurs in the power source circuit, the fail-safe function works to stop the power assist.
DTC No. Detection Item
DTC Detection Condition
Trouble Area
PIG Power Supply Voltage (C1552,C1554)
DESCRIPTION When a problem occurs in the PIG power source and power supply relay system, the fail-safe function works to stop the power assist.
DTC No. Detection Item
DTC Detection Cond
Error in Matching of ECUs (C1567)
DESCRIPTION The power steering ECU (rack and pinion power steering gear assembly) determines whether an incompatible ECM, main body ECU (multiplex network body ECU) or skid control ECU (brake actuator
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Cellular Phone Registration Failure
CAUTION / NOTICE / HINT
NOTICE:
Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.
Click here
When replacing the radio and display receiver
Components
COMPONENTS ILLUSTRATION
*1 FRONT FLOOR COVER LH
*2 FRONT FLOOR COVER RH
N*m (kgf*cm, ft.*lbf): Specified torque
- - ILLUSTRATION
*1 BODY MOUNTING PLATE
*2 NO. 1 ENGINE UNDER COVER
*3 REAR ENGINE UNDER COVER RH
*4 FRO
