DESCRIPTION
Connecting terminals TC and CG of the DLC3 causes the AWD control ECU to display 2-digit DTCs by flashing the AWD warning light.
HINT:
When each warning light remains blinking, a short to ground in the wiring of terminal TC of the DLC3 or an internal short to ground in each ECU is suspected.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
HINT:
Check the condition of each related circuit connector before troubleshooting
(See page ).
PROCEDURE
1. |
CHECK CAN COMMUNICATION SYSTEM |
(a) Check if the CAN communication DTC is output (See page
).
Result |
Proceed to |
---|---|
DTC is not output |
A |
DTC is output |
B |
B | ![]() |
REPAIR CAN COMMUNICATION SYSTEM |
|
2. |
CHECK WIRE HARNESS (TC OF DLC3 - TC OF ECM AND BODY GROUND) |
(a) Turn the ignition switch off. |
|
(b) Disconnect the ECM connector.
(c) Measure the resistance of the wire harness side connectors.
Standard Resistance:
Tester Connection (DLC3 - ECM) |
Condition |
Specified Condition |
---|---|---|
D1-13 (TC) - A41-16 (TC) |
Always |
Below 1 Ω |
D1-13 (TC) - A49-7 (TC) |
Always |
Below 1 Ω |
D1-13 (TC) - Body Ground |
Always |
10 kΩ or higher |
*1 |
DLC3 |
*2 |
Front view of wire harness connector (to ECM) |
*3 |
2GR-FE |
*4 |
1AR-FE |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
CHECK WIRE HARNESS (CG OF DLC3 - BODY GROUND) |
(a) Measure the resistance of the DLC3. Standard Resistance:
|
|
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
CHECK WIRE HARNESS (TC OF DLC3 - BODY GROUND) |
(a) Measure the resistance of the DLC3. Standard Resistance:
|
|
OK | ![]() |
REPLACE AWD CONTROL ECU |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Road Test
ROAD TEST
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