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Test Run of Failed TOD Vehicle: Notes

If the TOD indicator lamps experienced faulty operation even once in the past, the failed portion can be identified by use of the procedure " "DIAGNOSIS FROM TROUBLE CODES  " or "TROUBLE DIAGNOSIS DEPENDING ON THE STATUS OF TOD INDICATOR  ". If the troubles that are only recognized as abnormal phenomena of the vehicle by the driver are observed, conduct the test run in the following procedure to reproduce the faulty phenomena and diagnose the fault for each phenomenon.

  1. Start the engine, and check that the TOD indicator lamps are turned on for about two seconds for initial check; the CHECK lamp goes off; and the TOD indicator lamps display the specified drive mode. (If the CHECK lamp starts blinking, read the trouble codes and identify the failed portion.)
  2. While keeping the vehicle standstill, operate the TOD switch to change the modes: 2H mode->TOD mode->4L mode->TOD mode ->2H mode. Check that the TOD indicator lamps correctly display the status whenever the mode is changed. If the transition status is displayed during the shift operation, run the vehicle a little to complete shifting.
  3. Slowly start the vehicle in the TOD mode, and add the power to accelerate to at least 40 km/h (25 mph) and maintain the speed for about two minutes. Apply the brake to completely stop the vehicle. Repeat this test pattern at least three times.
  4. Turn the steering to the right end (or left end) in the TOD mode, and slowly start the vehicle and make a circle five times. Next, conduct the same test in the 2H mode.
  5. Slowly start the vehicle in the TOD mode, and accelerate to at least 40 km/h (25 mph). Keep the established speed, carefully change the mode in the sequence "TOD mode ->2H mode ->TOD mode" while checking that the shift is complete in each mode change. After the test, apply the brake to completely stop the vehicle.
  6. Slowly start the vehicle in the TOD mode, and accelerate to at least 40 km/h (25 mph). Apply the brake strongly so that the ABS works, and completely stop the vehicle.
  7. Slowly start the vehicle in the 4L mode, and accelerate to at least 20 km/h (13 mph). Apply the brake to completely stop the vehicle.

If the CHECK lamp starts blinking during the test run, read the trouble codes and give appropriate maintenance according to the diagnostic procedure. If the TOD indicator lamps are lit abnormally during the run, check the lighting condition and give appropriate maintenance according to the diagnostic procedure. Even if the phenomena are not observed, try to reproduce the abnormal state reported by the customer to the possible extent.

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