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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Installation
INSTALLATION PROCEDURE 1. INSTALL ENGINE WATER PUMP ASSEMBLY
(a) Install a new water pump gasket and the engine water pump assembly with the 15 bolts.
Torque: Bolt (A) : 43 N·m {438 kgf·cm, 32 ft·lbf} Bolt (B) :
21 N·m {214 kgf·cm, 15 ft·lbf} Bolt (C) : 11 N·m {112 kgf·cm, 8
Driving in vehicle-to-vehicle distance control mode - Dynamic radar cruise
control with full-speed
range
This mode employs a radar to detect the presence of vehicles up to
approximately 328 ft. (100 m) ahead, determines the current vehicle-to-vehicle following distance, and operates to maintain a suitable following
distance from the vehicle ahead. The desired vehicle-to-vehicle
distance can also be
