DESCRIPTION
Connecting terminals TC and CG of the DLC3 causes the ECU to display the DTC by blinking the ABS warning and slip indicator lights.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
HINT:
When the warning 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 a CAN communication system DTC is output (See page ).
Result |
Proceed to |
---|---|
DTC is not output |
A |
DTC is 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:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
D1-13 (TC) - D1-4 (CG) |
Ignition switch ON |
11 to 14 V |
*1 |
Front view of DLC3 |
NG |
GO TO STEP 4 |
|
3. |
CHECK ECM (TC of DLC3 INPUT) |
(a) Turn the ignition switch off. |
|
(b) Reconnect the ECM connector.
(c) Using SST, connect terminals TC and CG of the DLC3.
SST: 09843-18040
Text in Illustration
*1 |
Front view of DLC3 |
(d) Turn the ignition switch to ON.
(e) Check that the check engine warning light is blinking.
Result |
Proceed to |
---|---|
Check engine warning light is blinking |
A |
Check engine warning light is not blinking |
B |
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 the part (See page ).
A |
REPLACE BRAKE ACTUATOR ASSEMBLY |
B |
REPAIR OR REPLACE WIRE HARNESS OR ECM (TC of ECM CIRCUIT) |
4. |
CHECK HARNESS AND CONNECTOR (TC of DLC3 - ECM) |
(a) Turn the ignition switch off. |
|
(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for 2GR-FE
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D1-13 (TC) - A41-16 (TC) |
Always |
Below 1 Ω |
D1-13 (TC) - Body ground |
Always |
10 kΩ or higher |
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D1-13 (TC) - A49-7 (TC) |
Always |
Below 1 Ω |
D1-13 (TC) - Body ground |
Always |
10 kΩ or higher |
*1 |
Front view of DLC3 |
*2 |
Front view of wire harness connector (to ECM) |
*3 |
for 2GR-FE |
*4 |
for 1AR-FE |
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. |
CHECK ECM (TC of DLC3 INPUT) |
(a) Turn the ignition switch off. |
|
(b) Reconnect the ECM connector.
(c) Using SST, connect terminals TC and CG of the DLC3.
SST: 09843-18040
Text in Illustration
*1 |
Front view of DLC3 |
(d) Turn the ignition switch to ON.
(e) Check that the check engine warning light is blinking.
Result |
Proceed to |
---|---|
Check engine warning light is blinking |
A |
Check engine warning light is not blinking |
B |
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 the part (See page ).
A |
REPLACE BRAKE ACTUATOR ASSEMBLY |
B |
REPAIR OR REPLACE WIRE HARNESS OR ECM (TC of ECM CIRCUIT) |
Engine does not Start
DESCRIPTION
1. ENGINE START SYSTEM FUNCTION
(a) If the engine switch is pressed with the shift lever in P or N and the brake
pedal depressed, the power management control ECU determines that this is an engine
start request.
(b) The certification ECU (sm ...
Terminals Of Ecu
TERMINALS OF ECU
1. A/C AMPLIFIER
HINT:
Check from the rear of the connector while it is connected to the A/C amplifier.
Terminal No.
(Symbol)
Wiring Color
Terminal Description
Condition
Specified ...
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
(a) Disconnect the 2F and 2C driver side junction block connectors.
(b) Disconnect the D50 and D51 main body ECU connectors.
(c) Measure the resistance and voltage according to ...