Toyota Venza: ECU Power Source Circuit
DESCRIPTION
This is the power source for the tire pressure warning ECU.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the tire pressure warning ECU, read the transmitter IDs stored in the old ECU using the Techstream and write them down before removal.
- It is necessary to perform registration (See page
.gif)
) of the transmitter IDs into the tire
pressure warning ECU after the ECU has been replaced.
PROCEDURE
|
1. |
INSPECT FUSE (ECU-IG NO. 2) |
(a) Remove the ECU-IG No. 2 fuse from the driver side junction block.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
ECU-IG No. 2 fuse |
Always |
Below 1 Ω |
| NG | .gif) |
REPLACE FUSE |
|
.gif)
|
2. |
INSPECT IGNITION RELAY NO. 1 |
|
(a) Remove the IG1 relay from the driver side junction block. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
3 - 5 |
Battery voltage is not applied between terminals 1 and 2 |
10 kΩ or higher |
|
Battery voltage is applied between terminals 1 and 2 |
Below 1 Ω |
| NG | |
REPLACE IGNITION RELAY NO. 1 |
|
|
3. |
CHECK HARNESS AND CONNECTOR (ECU - BATTERY AND BODY GROUND) |
|
(a) Disconnect the D31 ECU connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
D31-7 (IG) - Body ground |
Ignition switch ON |
11 to 14 V |
|
Ignition switch off |
Below 1 V |
|
*1 |
Front view of wire harness connector (to Tire Pressure Warning ECU) |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D31-9 (GND) - Body ground |
Always |
Below 1 Ω |
| OK | |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Transmitter ID1 Operation Stop (C2111/11-C2114/14)
DESCRIPTION
The tire pressure warning valve and transmitter installed in each tire and wheel
assembly measures the tire pressures. The measured values are transmitted as radio
waves to the tire p ...
Tire Pressure Warning Light Circuit
DESCRIPTION
If the tire pressure warning ECU detects a malfunction, the tire pressure warning
light blinks for 1 minute then stays on and tire pressure monitor is canceled at
the same time. At th ...
Other materials about Toyota Venza:
IG Power Supply Voltage Malfunction (C1551)
DESCRIPTION
The power steering ECU distinguishes the ignition switch status as ON or off
through the IG power source circuit.
DTC No.
DTC Detection Condition
Trouble Area
C1551
IG power source ci ...
Diagnosis System
DIAGNOSIS SYSTEM
1. CHECK DLC3
(a) Check the DLC3 (See page ).
2. FUNCTION OF SRS WARNING LIGHT
(a) Primary check
(1) Turn the ignition switch off. Wait for at least 2 seconds, then turn the
ignition switch to ON. The SRS warning light comes on for app ...
Head restraints
Head restraints are provided for all seats.
► Front and rear outboard seats
Vertical adjustment 1. Up
Pull the head restraint up.
2. Down
Push the head restraints down while pressing the lock release button.
► Rear center seat (fabric seat) ...
0.1218