Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Checking Monitor Status
HINT:
"MONITOR RESULT" indicates normal or malfunction of component and system when judgment has done.
HOW TO READ MONITOR RESULTΒ
- Connect the hand-held tester to the DLC 3.
- Enter the following menus DIAGNOSIS/ ENHANCED OBD II/ MONITOR INFO/ MONITOR RESULT.
The Test ID will appear at the beginning of each line, followed by INCMP, PASS, or FAIL.
HINT:
- INCMP: Stands for "incomplete". The diagnosis is incomplete.
- PASS: The component or system is operating normally.
- FAIL: A malfunction has been detected.
- Select a Test ID from the list and press "ENTER" The following screen will appear:
- 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 judgment (Example: P0128 Thermostat Malfunction = 75Β°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.
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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