DESCRIPTION
The ABS solenoid relay supplies power to the ABS solenoid and TRAC solenoid.
The solenoid relay is turned on 1.5 seconds after the ignition switch is turned to ON, and is turned off if an open or short in the solenoid is detected by self diagnosis performed when the vehicle starts running.
The ABS solenoid relay is housed in the skid control ECU in the brake actuator assembly.
DTC Code |
DTC Detection Condition |
Trouble Area |
---|---|---|
C0278/11 |
Either of the following is detected:
|
|
WIRING DIAGRAM
Refer to DTCs C0226/21, C0236/22, C0246/23, C0256/24, C1225/25, C1226/26, C1227/27
and C1228/28 (See page ).
CAUTION / NOTICE / HINT
HINT:
When C1241/41 is output together with C0278/11, inspect and repair the trouble
areas indicated by C1241/41 first (See page ).
PROCEDURE
1. |
INSPECT ABS NO. 2 FUSE |
(a) Remove the fusible link block from the engine room relay block. |
|
(b) Check if the fusible link is melted.
OK:
The fusible link is not melted.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
ABS NO. 2 (30 A) fuse - Body ground |
Always |
Below 1 Ω |
*1 |
Engine Room Relay Block |
*2 |
Fusible Link Block |
*3 |
ABS NO. 2 Fuse |
NG | ![]() |
REPLACE FUSIBLE LINK BLOCK (ABS NO. 2 FUSE) |
|
2. |
INSPECT SKID CONTROL ECU (+BS TERMINAL) |
(a) Install the fusible link block to the engine room relay block. |
|
(b) Make sure that there is no looseness at the locking part and the connecting part of the connector.
(c) Disconnect the skid control ECU connector.
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
A42-3 (+BS) - Body ground |
Always |
11 to 14 V |
*1 |
Front view of wire harness connector (to Brake Actuator (Skid Control ECU)) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (+BS CIRCUIT) |
|
3. |
INSPECT SKID CONTROL ECU (GND1 TERMINAL) |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (GND1 CIRCUIT) |
|
4. |
RECONFIRM DTC |
HINT:
This code is detected when a problem is identified in the brake actuator assembly.
The solenoid circuit is located in the brake actuator assembly.
Therefore, solenoid circuit inspection and solenoid unit inspection cannot be performed. Be sure to check if the DTC is output before replacing the brake actuator assembly.
(a) Reconnect the skid control ECU connector.
(b) Clear the DTCs (See page ).
(c) Start the engine.
(d) Drive the vehicle at a speed of 20 km/h (12 mph) or more for 30 seconds or more.
(e) Check if the same DTC is recorded (See page
).
Result |
Proceed to |
---|---|
DTC (C0278/11) is not output |
A |
DTC (C0278/11) is output |
B |
HINT:
A | ![]() |
CHECK FOR INTERMITTENT PROBLEMS |
B | ![]() |
REPLACE BRAKE ACTUATOR ASSEMBLY |
Cleaning and protecting the vehicle interior
The following procedures will help protect your vehicle’s interior and keep
it in top condition: - Protecting the vehicle interior
Remove dirt and dust using a vacuum cleaner. Wipe dirty surfaces with a cloth dampened
with lukewarm water.
- Cleaning t ...
Engine Hood Courtesy Switch Circuit
DESCRIPTION
The security courtesy switch is installed together with the hood lock. This switch
turns off when the engine hood is opened and turns on when the engine hood is closed.
WIRING DIAGRAM
PROCEDURE
1.
INSPECT HOOD LOCK AS ...
Removal
REMOVAL
PROCEDURE
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-)
battery terminal to disable the SRS system.
NOTICE:
When disconnecting the cable, some systems ne ...