DESCRIPTION
Steering angle sensor signals are input to the skid control ECU (brake actuator assembly) via the CAN communication system.
HINT:
When a malfunction occurs in the communication line to the steering angle sensor, U0126 is output. If a DTC related to the CAN communication line is output, first troubleshoot the CAN communication line.
DTCs may be stored if one of the following occurs:
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
C1434 |
Steering Angle Sensor Output Malfunction |
Normal communication between the skid control ECU and the steering angle sensor and abnormal steering angle sensor zero point. |
|
WIRING DIAGRAM
Refer to DTC C1432 (See page ).
CAUTION / NOTICE / HINT
NOTICE:
HINT:
PROCEDURE
1. |
CHECK DTC |
(a) Clear the DTCs (See page
).
(b) Turn the ignition switch off.
(c) Turn the ignition switch to ON again and check that no CAN communication
system DTC is output (See page
).
(d) Start the engine.
(e) Drive the vehicle at a speed of 35 km/h (22 mph) and turn the steering wheel
to the right and left to check that no speed sensor or yaw rate and acceleration
sensor DTCs are output (See page
).
HINT:
Result |
Proceed to |
---|---|
No CAN communication system, speed sensor, or yaw rate and acceleration sensor DTCs are output |
A |
CAN communication system DTC is output |
B |
Speed sensor or yaw rate and acceleration sensor DTC is output |
C |
B | ![]() |
CHECK CAN COMMUNICATION SYSTEM |
C | ![]() |
REPAIR CIRCUIT INDICATED BY OUTPUT DTC |
|
2. |
CHECK TERMINAL VOLTAGE (BAT TERMINAL) |
(a) Turn the ignition switch off.
(b) Remove the steering wheel and the column cover lower (See page
).
(c) Make sure that there is no looseness at the locking part and the connecting part of the connectors. |
|
(d) Disconnect the S32 steering angle sensor (spiral cable with sensor sub-assembly) connector.
(e) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
S32-5 (BAT) - Body ground |
Always |
11 to 14 V |
*a |
Front view of wire harness connector (to Steering Angle Sensor [Spiral Cable with Sensor Sub-assembly]) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (BAT CIRCUIT) |
|
3. |
CHECK TERMINAL VOLTAGE (IG TERMINAL) |
(a) Turn the ignition switch to ON.
(b) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (IG CIRCUIT) |
|
4. |
CHECK HARNESS AND CONNECTOR (ESS TERMINAL) |
(a) Turn the ignition switch off.
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
HINT: If troubleshooting has been carried out according to the Problem Symptoms
Table, refer back to the table and proceed to the next step (See page
|
|
OK | ![]() |
REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (ESS CIRCUIT) |
Immobiliser System does not Operate Properly
DESCRIPTION
The engine immobiliser system compares the ID code that is registered in the
certification ECU (smart key ECU assembly) with the ID code of the transponder chip
that is embedded in the electrical key transmitter sub-assembly.
WIRING DIAGRAM
(See page ).
CAUTION / NOTICE / HINT
...
Tire Position Not Identified
DESCRIPTION
The tire pressure warning ECU and receiver identifies the tire position for each
tire pressure warning valve and transmitter according to the wheel speed signals
from the skid control ECU and acceleration rate signal from each acceleration sensor
built into each tire pressure warn ...
Precaution
PRECAUTION
1. IGNITION SWITCH EXPRESSIONS
(a) The type of ignition switch used on this model differs according to the specifications
of the vehicle. The expressions listed in the table below are used in this section.
Expression
Ignition Switch (Position)
Engine ...