55
OBD-II/EOBD EOBD
The information screen shows how many control modules were detected, which ECM is
communicating, and which communication protocol is being used.
5. Select Continue.
A Select Service menu of available tests opens:
– Readiness Monitors‚ on page 55
– MIL Status‚ on page 56
– ($01) Display Current Data‚ on page 56
– ($02) Display Freeze Frame Data‚ on page 56
– ($03) Display Trouble Codes‚ on page 56
– ($04) Clear Emissions Related Data‚ on page 56
– ($05, 06, 07) Display Test param./Results‚ on page 57
– ($08) Request Control of On-board System‚ on page 58
– ($09) Read Vehicle Identification‚ on page 58
– ($0A) Emission Related DTC with Permanent Status‚ on page 58
All service modes are not supported by all vehicles, so the available menu selections will vary.
Figure 6-5 Sample service menu
6. Select a test to continue.
Readiness Monitors
Use this menu item to check the readiness of the monitoring system. If a monitor system is not
supported, it is not displayed. Scroll, if needed, to view the entire list of monitors (Figure 6-3).
Selecting Readiness Monitors opens a submenu with two choices:
• Monitors Complete Since DTC Cleared—displays the results of all monitor tests that have
run since the last time the electronic control module (ECM) memory was cleared.
• Monitors Complete This Cycle—displays only the results of monitor tests that ran during the
current drive cycle, they reset when the ignition is switched off.
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