Toyota Venza: Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) The certification ECU (smart key ECU assembly) control the vehicle smart key system functions. Smart key system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). In some cases, a malfunction may be occurring in the smart key system. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.
2. CHECK DLC3
(a) Check the DLC3 (See page .gif)
).
3. INSPECT BATTERY VOLTAGE
(a) Measure the battery voltage.
Standard Voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery.
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms. If multiple
suspected areas are listed, the potential causes of the symptoms are listed in order
...
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
(a) Disconnect the D25 certification ECU (smart key ECU assembly) connector.
(b) Measure the voltage and resistance according ...
Other materials about Toyota Venza:
Rear Occupant Classification Sensor RH Circuit Malfunction (B1783)
DESCRIPTION
The rear occupant classification sensor RH circuit consists of the occupant classification
ECU and rear occupant classification sensor RH.
DTC B1783 is recorded when a malfunction is detected in the rear occupant classification
sensor RH circ ...
Check CAN Bus Lines for Short Circuit
DESCRIPTION
There may be a short circuit in the CAN bus main wire and/or CAN branch wire
when the resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3 is below
54 Ω.
Symptom
Trouble Area
Resistance betwe ...
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 ...
0.1553