Checking Monitor Status
CHECKING MONITOR STATUSHINT: The hand-held tester's MONITOR RESULT first monitors each component and system, and then displays whether each is normal or malfunctioning.
HOW TO READ MONITOR RESULT
a. Connect the hand-held tester to the Controller Area Network Vehicle Interface Module (CAN VIM). Then connect the CAN VIM to the DLC3.
b. 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 monitor has not been done yet.
- PASS: The component or system is operating normally.
- FAIL: A malfunction has been detected.
c. Select a Test ID from the list and press ENTER. The following screen will appear:
1. VAL (TEST VALUE) [Test Data] [Unit]
2. LMT (TEST LIMIT) [Test Limit] [Unit]
3. TLT [Test Limit Type]
d. Press "HELP" for more information.
HINT:
- The results of the monitor test can be viewed by selecting MONITOR RESULT from the menu.
- The results of the monitor test indicate the latest malfunction judgment of the diagnosis.
- The TEST VALUE is the parameter value detected during the diagnosis.
(Example: P0128 Thermostat Malfunction = Engine coolant temperature at the time of malfunction judgement is made).
- The TEST LIMIT indicates the malfunction threshold value.
(Example: P0128 Thermostat Malfunction = 75 °C or more).
- When the monitor runs, the TEST VALUE is recorded and compared to the TEST LIMIT to determine if the result is PASS or FAIL.
- By comparing the TEST VALUE and TEST LIMIT, the degree of failure can be determined.
- In rare cases, the monitor result is PASS but a DTC is set and the MIL is illuminated. The monitor may have detected the malfunction on a previous trip and the passed on the most recent trip. An intermittent problem may be causing the DTC.