Toyota Venza: Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
Active torque control 4WD system data can be read in the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs. Therefore when there seems to be a problem with the active torque control 4WD system, use the Techstream or SST to check and troubleshoot it.
2. CHECK DLC3
(a) The ECU uses CAN (ISO11898-1) and ISO9141-2 for communication protocol. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO9141-2 format.
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Verify the conditions listed in the table below.
|
Symbol (Terminal No.) |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|
|
SIL (7) - SG (5) |
Bus + line |
During transmission |
Pulse generation |
|
CG (4) - Body Ground |
Chassis ground |
Always |
Below 1 Ω |
|
SG (5) - Body Ground |
Signal ground |
Always |
Below 1 Ω |
|
BAT (16) - Body Ground |
Battery positive |
Always |
10 to 14 V |
|
CANH (6) - CANL (14) |
CAN bus line |
Ignition switch off* |
54 to 69 Ω |
|
CANH (6) - CG (4) |
HIGH-level CAN bus line |
Ignition switch off* |
200 Ω or higher |
|
CANL (14) - CG (4) |
LOW-level CAN bus line |
Ignition switch off* |
200 Ω or higher |
|
CANH (6) - BAT (16) |
HIGH-level CAN bus line |
Ignition switch off* |
6 kΩ or higher |
|
CANL (14) - BAT (16) |
LOW-level CAN bus line |
Ignition switch off* |
6 kΩ or higher |
NOTICE:
*: Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, other switches or the doors.
If the result is not as specified, the DLC3 may have a malfunction. Repair or replace the harness and connector.
HINT:
Connect the cable of the Techstream to the DLC3, turn the ignition switch to ON and attempt to use the Techstream. If the display indicates that a communication error has occurred, there is a problem either with the vehicle or with the Techstream.
- If communication is normal when the Techstream is connected to another vehicle, inspect the DLC3 of the original vehicle.
- If communication is still not possible when the Techstream is connected to another vehicle, the problem may be in the Techstream itself. Consult the Service Department listed in the Techstream instruction manual.
3. WARNING LIGHT
(a) When a problem occurs in the active torque control 4WD system, the AWD warning light on the combination meter comes on to inform the driver of the problem.
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK AWD CONTROL ECU
(a) Measure the voltage and resistance of the connector.
Terminal No. (Symbol)
Terminal Description
Condition
...
Dtc Check / Clear
DTC CHECK / CLEAR
1. CHECK DTC (When Using Techstream)
(a) Check the DTCs.
(1) Connect the Techstream to the DLC3.
(2) Turn the ignition switch to ON.
(3) Turn the Techstream on.
(4) Read the DT ...
Other materials about Toyota Venza:
ACC Monitor Malfunction (B2274)
DESCRIPTION
This DTC is stored when there is a problem in the ACC output circuit. The ACC
circuit is the circuit that goes from inside the power management control ECU to
the ACC relay.
DTC No.
DTC Detection Condition
Tro ...
Towing related terms
- GCWR (Gross Combination Weight Rating)
► 2GR-FE engine (Without towing package)
and 1AR-FE engine
The maximum allowable gross combination weight. The gross combination weight
is the sum of the total vehicle weight (including the occupants ...
Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL NO. 14 ROOF SILENCER PAD
(a) Align the markings on the roof headlining assembly with the No. 14 roof silencer
pad and install the silencer pad using hot-melt glue as shown in the illustration.
2. INSTALL NO. 1 ROOF WIRE ...
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