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 |
Selecting the units
Press the “US/M-M” button.
The unit changes each time the button is pressed.
- Liquid crystal display
Small spots or light spots may appear on the display. This phenomenon is characteristic
of liquid crystal displays, and there is no problem to ...
Inspection
INSPECTION
PROCEDURE
1. INSPECT TRANSMISSION OIL CLEANER MAGNET
(a) Use the removed transmission oil cleaner magnets to collect any steel
chips. Examine the chips and particles in the automatic transaxle oil pan
sub-assembly and on the tr ...
Air Fuel Ratio Sensor
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY
2. REMOVE COOL AIR INTAKE DUCT SEAL
3. REMOVE INLET AIR CLEANER ASSEMBLY
4. REMOVE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR
5. REMOV ...