DESCRIPTION
If a malfunction is detected in the power supply circuit, the skid control ECU (housed in the actuator assembly) stores this DTC and the fail-safe function prohibits ABS operation.
This DTC is stored when the IG1 terminal voltage deviates from the DTC detection condition due to a malfunction in the power supply or charging circuit such as the battery or alternator circuit, etc.
The DTC is cancelled when the IG1 terminal voltage returns to normal.
DTC Code |
DTC Detection Condition |
Trouble Area |
---|---|---|
C1241/41 |
Any of the following is detected:
|
|
WIRING DIAGRAM
PROCEDURE
1. |
INSPECT ECU-IG NO. 2 FUSE |
(a) Remove the ECU-IG NO. 2 fuse from the main body ECU (driver side junction block). |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
ECU-IG NO. 2 (7.5 A) fuse |
Always |
Below 1 Ω |
*1 |
Main Body ECU (Driver Side Junction Block) |
*2 |
ECU-IG NO. 2 Fuse |
NG | ![]() |
REPLACE ECU-IG NO. 2 FUSE |
|
2. |
CHECK BATTERY |
(a) Install the ECU-IG NO. 2 fuse.
(b) Check the battery voltage.
Standard Voltage:
11 to 14 V
Result |
Proceed to |
---|---|
OK |
A |
NG (for 2GR-FE) |
B |
NG (for 1AR-FE) |
C |
B | ![]() |
CHECK OR REPLACE CHARGING SYSTEM OR BATTERY (for 2GR-FE) |
C | ![]() |
CHECK OR REPLACE CHARGING SYSTEM OR BATTERY (for 1AR-FE) |
|
3. |
INSPECT SKID CONTROL ECU (IG1 TERMINAL) |
(a) Make sure that there is no looseness at the locking part and the connecting part of the connector. |
|
(b) Disconnect the skid control ECU connector.
(c) Turn the ignition switch to ON.
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
A42-28 (IG1) - Body ground |
Ignition switch ON |
11 to 14 V |
*1 |
Front view of wire harness connector (to Brake Actuator (Skid Control ECU)) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (IG1 CIRCUIT) |
|
4. |
INSPECT SKID CONTROL ECU (GND1 TERMINAL) |
(a) Turn the ignition switch off. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
A42-4 (GND1) - Body ground |
Always |
Below 1 Ω |
*1 |
Front view of wire harness connector (to Brake Actuator (Skid Control ECU)) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (GND1 CIRCUIT) |
|
5. |
RECONFIRM DTC |
(a) Reconnect the skid control ECU connector.
(b) Clear the DTCs (See page ).
(c) Start the engine.
(d) Perform a road test.
(e) Check if the same DTC is recorded (See page
).
Result |
Proceed to |
---|---|
DTC (C1241/41) is not output |
A |
DTC (C1241/41) is output |
B |
HINT:
If troubleshooting has been carried out according to Problem Symptoms Table,
refer back to the table and proceed to the next step (See page
).
A | ![]() |
CHECK FOR INTERMITTENT PROBLEMS |
B | ![]() |
REPLACE BRAKE ACTUATOR ASSEMBLY |
Inspection
INSPECTION
PROCEDURE
1. INSPECT THERMOSTAT
HINT:
The valve opening temperature is inscribed on the thermostat.
(a) Immerse the thermostat in water, and then gradually heat the water.
(b) Check t ...
Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL TRANSFER DRIVEN PINION REAR BEARING
(a) Using SST and a press, press the transfer driven pinion rear bearing
(outer race) to the case.
SST: 09950-60010
09951-00620
SST: 09950-70010
09951-07150
NO ...
Malfunction in Deceleration Sensor (C1245/93)
DESCRIPTION
If a malfunction in the deceleration sensor circuit occurs, the AWD control ECU
will output this DTC.
DTC No.
DTC Detecting Condition
Trouble Area
C1296/96
When the following conditio ...