DESCRIPTION
Refer to DTCs C1401 and C1402 (See page ).
DTC Code |
DTC Detection Condition |
Trouble Area |
---|---|---|
C1405 C1406 |
Either condition is met:
|
|
HINT:
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (MOMENTARY INTERRUPTION) |
(a) Using the Techstream, check for any momentary interruption in the wire harness
and connector corresponding to the DTC (See page
).
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
FR Speed Open |
Front speed sensor RH open detection/ Error or Normal |
Normal |
- |
FL Speed Open |
Front speed sensor LH open detection/ Error or Normal |
Normal |
- |
OK:
Normal (there are no momentary interruptions).
HINT:
Perform the above inspection before removing the sensor and connector.
NG | ![]() |
GO TO STEP 4 |
|
2. |
READ VALUE USING TECHSTREAM (FRONT SPEED SENSOR) |
NG | ![]() |
GO TO STEP 4 |
|
3. |
RECONFIRM DTC |
(a) Clear the DTCs (See page
).
(b) Turn the ignition switch off.
(c) Start the engine.
(d) Drive the vehicle at a speed of 40 km/h (25 mph) or more for at least 60 seconds.
(e) Check if the same DTC is output (See page
).
Result |
Proceed to |
---|---|
DTCs C1405 and C1406 are not output |
A |
DTCs C1405 and/or C1406 are output |
B |
A | ![]() |
USE SIMULATION METHOD TO CHECK |
B | ![]() |
REPLACE MASTER CYLINDER SOLENOID |
4. |
INSPECT SKID CONTROL SENSOR WIRE |
(a) Remove the skid control sensor wire.
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance: RH
|
|
NG | ![]() |
REPLACE SKID CONTROL SENSOR WIRE |
|
5. |
CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - FRONT SPEED SENSOR) |
(a) Install the skid control sensor wire.
(b) Disconnect the S1 skid control ECU (master cylinder solenoid) connector.
(c) Disconnect the S4 and/or S3 front speed sensor connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
RH
Tester Connection |
Condition |
Specified Condition |
---|---|---|
S1-3 (FR+) - S4-2 (FR+) |
Always |
Below 1 Ω |
S1-3 (FR+) - Body ground |
Always |
10 kΩ or higher |
S1-17 (FR-) - S4-1 (FR-) |
Always |
Below 1 Ω |
S1-17 (FR-) - Body ground |
Always |
10 kΩ or higher |
Tester Connection |
Condition |
Specified Condition |
---|---|---|
S1-18 (FL+) - S3-2 (FL+) |
Always |
Below 1 Ω |
S1-18 (FL+) - Body ground |
Always |
10 kΩ or higher |
S1-4 (FL-) - S3-1 (FL-) |
Always |
Below 1 Ω |
S1-4 (FL-) - Body ground |
Always |
10 kΩ or higher |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
6. |
INSPECT SKID CONTROL ECU (FR+, FL+ TERMINAL) |
(a) Disconnect the S4 and/or S3 front speed sensor connector.
(b) Connect the S1 skid control ECU (master cylinder solenoid) connector.
(c) Measure the voltage according to the value(s) in the table below. Standard Voltage: RH
|
|
OK | ![]() |
REPLACE FRONT SPEED SENSOR |
NG | ![]() |
REPLACE MASTER CYLINDER SOLENOID |
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK DRIVER SIDE JUNCTION BLOCK AND MAIN BODY ECU (MULTIPLEX NETWORK BODY
ECU)
(a) Disconnect the MB main body ECU (multiplex network body ECU) connectors.
(b) Measure the voltage and resistance according to the value(s) in the table
below.
HINT:
Measure the values on ...
Engine Switch
Components
COMPONENTS
ILLUSTRATION
Inspection
INSPECTION
PROCEDURE
1. INSPECT ENGINE SWITCH
(a) Measure the resistance according to the value(s) in the table below.
Text in Illustration
*a
Component without harness connected
(Engine Switch)
-
...
Outer Mirror Switch
Inspection
INSPECTION
PROCEDURE
1. INSPECT OUTER MIRROR SWITCH ASSEMBLY
(a) Check the mirror select switch and mirror surface adjust switch.
(1) Turn the mirror select switch to the L position.
Text in Illustration
*a
Mirror Select and Surfac ...