Toyota RAV4 (XA40) 2013-2018 Service Manual: Active test
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.
- Connect the intelligent tester to the dlc3.
- Turn the ignition switch on.
- Turn the tester on.
- Select the following menu items: diagnosis / enhanced obd ii / active test.
- Perform the active test by referring to the table below.
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.
- Warm up the engine.
- Turn the ignition switch off.
- Connect the intelligent tester to the dlc3.
- Turn the ignition switch on and turn the intelligent tester on.
- Select the following menu items: diagnosis / enhanced obd ii / active test / compress check.
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.
- While the engine is not running, press the right or left button to change the compress check to on.
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.
- Fully open the throttle.
- Crank the engine for about 10 seconds.
- Monitor the engine speed (eng speed #1 to #4) displayed on the tester.
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:
- After the active test's compress check is turned on, it will automatically turn off after 255 seconds.
- When the compress check test is off and the engine is cranked, the engine will start.
- If the compress check test needs to be performed after it is turned on and performed once, press exit to return to the active test menu screen. Then perform the compress check test again.
- Use a fully-charged battery.
Data list
Hint:
By reading the data list displayed on an intelligent
tester, values can be checked, including those of the
switches, sensors, and actuators, without removing any
parts. Reading the data list ...
System check
Hint:
Performing a system check enables the system,
which consists of multiple actuators, to be operated
without removing any parts. In addition, it can show
whether or not any dtcs are set, and c ...
Other materials:
Front wheel alignment
Adjustment
Inspect tires
Inspect the tires (see page tw-1).
Measure vehicle height
Notice:
Before inspecting the wheel alignment, adjust the
vehicle height to the specification.
Press down on the vehicle several times to stabilize
the suspension, and measure the vehicl ...
Camshaft position sensor "a" circuit (bank 1 or single sensor)
Description
The camshaft position (cmp) sensor consists of a magnet and an iron core
which is wrapped with copper
wire, and is installed onto the cylinder head. When the camshaft rotates, each
of 3 teeth on the camshaft
passes through the cmp sensor. This activates the internal magnet in ...
For vehicles equipped with catalytic converter caution:
If a large amount of unburned gasoline or gasoline
vapors flow into the converter, it may cause
overheating and create a fire hazard. To prevent this,
observe the following precautions.
Use only unleaded gasoline.
Avoid idling the engine for more than 20 minutes.
Avoid performing unnecess ...
