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
).
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
Terminals Of EcuVehicle load limits
Vehicle load limits include total load capacity, seating capacity, Trailer
Weight Rating (TWR) and cargo capacity.
- Total load capacity (Vehicle capacity weight):
Total load capacity means the combined weight of occupants, cargo and luggage.
&nbs ...
Fail-safe Chart
FAIL-SAFE CHART
If any of the following DTCs are stored, the ECM enters fail-safe mode to allow
the vehicle to be driven temporarily or stops fuel injection.
DTC Code
Component
Fail-Safe Operation
Fail-Safe Deact ...
Power Source Control ECU Malfunction (B2782)
DESCRIPTION
The power management control ECU controls the power supply to activate the steering
lock motor. This prevents the steering wheel from being locked while the vehicle
is moving.
DTC No.
DTC Detecting Condition
T ...