Fault diagnosis by means of driving test

Fault diagnosis by means of driving test
5A-FE (AE110), 4A-FE (AE101, AT190, AE111), 7A-FE
The application driving test Presley blowing the following objectives:
a) Playing (simulation) es ¬ dovyh regimes are identified ¬ etsya this diagnostic code, and b) Ensure the full execution of the repair work, making sure that after their implementation, of this diagnostic code appears.
Code number 21 - Oxygen Sensor
Fault - damaged or "aging" of the oxygen sensor modes toast (numbers in circlesin the figure):
When the ignition is off of-band fuse "EP1" (15A) or "5T0R" (15A) (7A-FE (AE93)) at the time of 10 seconds or more. Put the system in a mode closely ¬ tirovaniya, peremknuv findings "TE2" and "E1" diagnostic connector.
For all off, the additional auxiliary equipment, start the engine and warm it up to a normal operating temperature.
3. Run the engine to run ho ¬ cavity not less than 3 minutes.
4. Gradually increase engine speed to 1300 ¬ 1700 rev / min, and then hold it at about 1500 rev / min when the air conditioner and fifth gear manual gearbox re ¬ cottages (with automatic transmission ne ¬ redach gear selector must be set to " E "). Try to keep your speed is not reduced below 1200 rev / min during gear changes. Gradually press the accelerator pedal and hold it down to prevent engine braking.
5. Set the speed of the car within 64-80 km / hour.
6. Keep this option in those-value 1-2 minutes after start ¬ gatelya motion.
Please note:
- If the fault is essentially ¬ em, the indicator lamp "CHECK" will flash approximately ¬ down approximately 60 seconds after the start of acceleration.
- Failure is not zafik-pensate, if not exactly follow the method of the test.
Code number 25 - Poor fuel-air mixture
Fault - open or short circuit in oxygen sensor Note: before performing this test, make sure that supply oxygen sensor test mode (numbers in circles in the figure):
1. When the ignition is off unplug the fuse-unites "ER" 1 (15 A) or "5TOR" (15A) (7A-FE (AE93)) at the time of 10 seconds or more and turn the system into test mode, ne ¬ remknuv findings "TE2" and "E1" acoustic diagnostic connector.
2. If additional equipment is disabled, run the engine and warm it up to normal operating temperature.
3. Run the engine to run ho ¬ cavity not less than 3 minutes.
4. Three times a sharp acceleration perform engine, increasing the frequency of rotation ¬ absorption up to 4000 rev / min.
5. Keep the speed of about 2000 rev / min for 90 seconds.
Please note:
- If a fault exists, the indicator light will flash on the 5th step of the test 5.
- Failure is not zafik-pensate, if not exactly follow the method of the test.
Code number 52 - Knock Sensor
4A-FE (AE111). 5A-FE (AE110) 7A-FE (AE115) release in 1997 Knock Sensor is installed in the engine block. It contains pezoele-ment, generating electricity during the deformation of the cylinder, called a vibration you ¬ detonation. In the event of detonation of the electronic control unit reduces the ignition timing. Fault - open or short circuit in knock sensor. Test mode (numbers in circles in the figure):
0. Put the system in a mode closely ¬ tirovaniya.
1. Start the engine and warm it up to normal operating temperature.
2. Run the engine at the ho ¬ cavity speed for 3 minutes.
3. When the air conditioner three times perform rapid acceleration motion ¬ gatelya, increasing the speed to 5000 rev / min.
Please note:
• If the problem exists, then the lamp will be mi ¬ causeway during heavy acceleration.
- Failure is not zafik-pensate, if not exactly follow the method of the test.
Troubleshooting Volt / Ohmmeter
Please note:
- For each system razrabota ¬ HN troubleshooting procedures ¬ Stein set out in this guide. From time to time, these procedures may vary somewhat. However, of methods of described in this dstve Clerk-almost enough for fault detection.
- Before you start searching fault ¬ sion recommended to check the fuses, fusible links, and the state of connections.
- Troubleshooting procedures, Stein based on the assumption that the fault lies either in the breakage of the electrical Tse ¬ pi, or a fault in it outside the computer, or to ¬ Korotkov closure in the com ¬ puter.
- If the fault engines ¬ To appear at the required operating voltage on the findings of the computer so the computer is defective and must be replaced.