Hint:
Performing an active test enables components including the relays, vsv (vacuum switching valve) and actuators, to be operated without removing any parts.
The active test can be performed with the intelligent tester. Performing the active test as the first step of troubleshooting is one method of shortening diagnostic time.
Data list can be displayed during active test.
Hint:
*: When cranking the engine, each cylinder measures the engine rpm.
In this active test, the fuel and ignition of all cylinders is cut, and cranking occurs for approximately 10 seconds. Then, each cylinder measures the engine rpm. If a cylinder's engine rpm is higher than the others, that cylinder's compression pressure is compared to the others, and whether or not the compression pressure is low can be determined.
Hint:
If the results are not displayed normally, select the display items from the data list before performing the active test. Select the following menu items: diagnosis / enhanced obd ii / data list / user data / eng speed #1 and eng speed #2, eng speed #3, eng speed #4 (press the yes button to change the eng speed #1 to #4 is yes) and then press the enter button.
Hint:
After performing the above procedure, the active test's compress check will start. Fuel injection for all cylinders is prohibited, and the each cylinder's engine rpm measurement will enter standby.
Hint:
At first, the tester's display will show each cylinder's engine rpm measurement to be extremely high. After approximately 10 seconds of engine cranking, each cylinder's engine rpm measurement will change to the actual engine rpm.
Notice:
Driving the vehicle
The following procedures
should be observed to
ensure safe driving:
Driving procedure
â– Driving
1. With the brake pedal
depressed, shift the shift
lever to D.
2. Release the parking brake.
If the parking brake is in automatic
mode, the parking brake will be
released automatically.
3. Gradually re ...
Fuel system
Precaution
Before working on fuel system
Do not work near an open flame.
Keep gasoline away from rubber and leather parts.
Discharge the fuel pressure before disconnecting
the fuel line to prevent gasoline from spilling out.
Refer to the following procedure.
Discharge fuel ...
Downhill assist control operation switch (test mode dtc)
Description
The downhill assist control switch is connected to the skid control ecu in
the abs and traction
actuator.
Dtc c1379/74 can be detected when the downhill assist control switch sends the
downhill assist control
switch signal or test mode ends. Dtc c1379/74 is output only in t ...