DESCRIPTION
Connecting terminals TC and CG of the DLC3 causes the ECU to display DTCs by blinking the ABS warning and slip indicator lights.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
When replacing the skid control ECU (brake actuator assembly), perform system variant learning.
Click here
HINT:
When the indicator lights continue to blink, a ground short in the wiring of terminal TC of the DLC3 or an internal ground short in one or more ECUs is suspected.
PROCEDURE
1. |
CHECK CAN COMMUNICATION SYSTEM |
(a) Check if CAN communication system DTCs are output.
Click here
Result |
Proceed to |
---|---|
DTCs are not output. |
A |
DTCs are output. |
B |
B | ![]() |
INSPECT CAN COMMUNICATION SYSTEM
|
|
2. |
INSPECT DLC3 |
(a) Turn the ignition switch to ON.
(b) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
NG | ![]() |
GO TO STEP 4 |
|
3. |
REPLACE ECM |
*a |
Front view of DLC3 |
(a) Turn the ignition switch off.
(b) Replace the ECM.
Click here
(c) Using SST, connect terminals TC and CG of the DLC3.
SST: 09843-18040
(d) Check that the ABS warning, slip indicator and brake hold standby indicator lights are blinking.
OK:
The ABS warning, slip indicator and brake hold standby indicator lights are blinking.
HINT:
If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing parts.
Click here
OK | ![]() |
END |
NG | ![]() |
REPLACE BRAKE ACTUATOR ASSEMBLY |
4. |
CHECK HARNESS AND CONNECTOR (TC of DLC3 - ECM) |
(a) Turn the ignition switch off.
(b) Disconnect the A38 ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F41-13 (TC) - A38-33 (TC) |
Always |
Below 1 Ω |
F41-13 (TC) or A38-33 (TC) - Body ground |
Always |
10 kΩ or higher |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
5. |
CHECK HARNESS AND CONNECTOR (CG of DLC3 - BODY GROUND) |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
6. |
REPLACE ECM |
*a |
Front view of DLC3 |
(a) Replace the ECM.
Click here
(b) Using SST, connect terminals TC and CG of the DLC3.
SST: 09843-18040
(c) Check that the ABS warning, slip indicator and brake hold standby indicator lights are blinking.
OK:
The ABS warning, slip indicator and brake hold standby indicator lights are blinking.
HINT:
If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing parts.
Click here
OK | ![]() |
END |
NG | ![]() |
REPLACE BRAKE ACTUATOR ASSEMBLY |
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HINT:
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