DESCRIPTION
Tire pressure warning system DTCs can be checked by connecting terminals 13 (TC) and 4 (CG) of the DLC3. The DTCs are indicated by blinking the tire pressure warning light.
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK CAN COMMUNICATION SYSTEM |
(a) Check for DTCs (See page .gif)
).
|
Result |
Proceed to |
|---|---|
|
DTCs are not output. |
A |
|
DTCs are output. |
B |
| B | .gif) |
GO TO CAN COMMUNICATION SYSTEM |
|
.gif)
|
2. |
CHECK DTC (C2179/79) |
(a) Check if DTC C2179/79 is output (See page
).
|
Result |
Proceed to |
|---|---|
|
DTC C2179/79 is not output. |
A |
|
DTC C2179/79 is output. |
B |
| B | |
GO TO DTC (C2179/79) |
|
|
3. |
INSPECT DLC3 |
|
(a) Turn the ignition switch to ON. Text in Illustration
|
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
D4-13 (TC) - D4-4 (CG) |
Ignition switch ON |
11 to 14 V |
| NG | |
GO TO STEP 5 |
|
|
4. |
REPLACE ECM |
|
(a) Turn the ignition switch off. Text in Illustration
|
|
(b) Replace the ECM.
for 2GR-FKS: (See page
)
for 2TR-FE: (See page
)
(c) Using SST, connect terminals TC and CG of the DLC3.
SST: 09843-18040
(d) Check that the tire pressure warning light is blinking.
OK:
The tire pressure warning light is 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 the part (See
page ).
| OK | |
END |
| NG | |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
5. |
CHECK HARNESS AND CONNECTOR (TC of DLC3 - ECM) |
(a) Disconnect the A43 ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for 2GR-FKS:|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D4-13 (TC) - E14-20 (TC) |
Always |
Below 1 Ω |
|
D4-13 (TC) or E14-20 (TC) - Body ground |
Always |
10 kΩ or higher |
Standard Resistance:
for 2TR-FE:|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D4-13 (TC) - E21-19 (TC) |
Always |
Below 1 Ω |
|
D4-13 (TC) or E21-19 (TC) - Body ground |
Always |
10 kΩ or higher |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
6. |
CHECK HARNESS AND CONNECTOR (CG of DLC3 - BODY GROUND) |
|
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
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 |
|
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
7. |
REPLACE ECM |
|
(a) Replace the ECM. for 2GR-FKS: (See page for 2TR-FE: (See page
|
|
(b) Using SST, connect terminals TC and CG of the DLC3.
SST: 09843-18040
(c) Check that the tire pressure warning light is blinking.
OK:
The tire pressure warning light is 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 the part (See
page ).
| OK | |
END |
| NG | |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
