Toyota Corolla (E120): Checking monitor status
Hint
: ”monitor result” indicates normal or malfunction of each component and system when judgment has done.
1. How to read data
- Connect the hand–held tester to the dlc 3.
- enter ”monitor result” from ”diagnosis / enhanced obd ii / monitor info / monitor result” on the hand–held tester. You will see ”test id” and ”incmp”, ”pass” or ”fail” on the monitor result screen.
Hint
:
- incmp: the judgement has not been done yet.
- Pass: normal is detected.
- Fail: malfunction is detected.
- Select a test id that you want from the list and press the ”enter” button. You will see the following screen:
- val (test value) [test data] [unit]
- lmt (test limit) [test limit] [unit]
- tlt [test limit type]
- By pressing the ”help” button, you can see more information.
Hint
:
- monitor test results can be viewed in the monitor result screen.
- Monitor test results indicate the latest malfunction judgement result of this diagnostic.
- Test value indicates the detection parameter value (example: p0128 thermostat malfunction = engine coolant temperature) at the time of malfunction (or normal) judgement is done.
- Test limit indicates a threshold of malfunction judgement (example: p0128 thermostat malfunction = 75 c).
- When the monitor runs, the monitored parameter’s value is recorded. The value is then compared to the test limit to determine if the result is pass or fail.
- By comparing the parameter value to the test limit, it is possible to determine the degree of failure.
- In rare cases, the monitor may have passed even with a dtc set and mil illuminated. The monitor may have failed on a previous trip, and then passed on the most recent trip. This would indicated an intermittent problem may be the cause of the dtc.
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