Toyota Venza: TC and CG Terminal Circuit
DESCRIPTION
DTC output mode is set by connecting terminals TC and CG of the DLC3.
DTCs are displayed by blinking of the SRS warning light.
HINT:
- When each warning light stays blinking, a ground short in the wiring of terminal TC of the DLC3 or an internal ground short in each ECU is suspected.
- A DTC output mode signal is transmitted through the CAN communication system to each ECU including the center airbag sensor assembly. Thus when all systems do not enter DTC output mode, there may be an ECM malfunction.
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK WIRE HARNESS (TC OF DLC3 - TC OF ECM) |
|
(a) Turn the ignition switch off. |
|
(b) Disconnect the connector from the ECM.
(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 |
for 1AR-FE
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D1-13 (TC) - A49-7 (TC) |
Always |
Below 1 Ω |
|
*1 |
Front view of wire harness connector (to DLC3) |
|
*2 |
Front view of wire harness connector (to ECM) |
|
*3 |
for 2GR-FE |
|
*4 |
for 1AR-FE |
| NG | .gif) |
REPLACE WIRE HARNESS |
|
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|
2. |
CHECK WIRE HARNESS (CG OF DLC3 - BODY GROUND) |
|
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
| NG | |
REPLACE WIRE HARNESS |
|
|
3. |
CHECK WIRE HARNESS (TC OF DLC3 - BODY GROUND) |
|
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
| OK | |
REPLACE CENTER AIRBAG SENSOR ASSEMBLY |
| NG | |
REPLACE WIRE HARNESS OR EACH ECU |
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