MIL Diagnostic Mode
WARNING: This page is about a different car, the 1995 Jeep Wrangler and 1995 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
- Start engine (if possible). Move transmission shift lever through all positions, ending in Park. Turn A/C switch on and then off (if equipped).
- Turn engine off. Without starting engine again, turn ignition on, off, on, off and on within 3 seconds. Record 2-digit DTCs as displayed by flashing MIL.
- For example, DTC 23 is displayed as flash, flash, 4-second pause, flash, flash, flash. After a slightly longer pause, other codes stored are displayed in numerical order. When MIL begins to flash DTCs, it cannot be stopped. Start over if count is lost. Code 55 indicates end of fault code display.
- Refer to DIAGNOSTIC TROUBLE CODES/MESSAGES to translate trouble code number to a scan tool fault message. Once trouble area is identified, refer to TEST TC-1A in TESTS W/CODES article in this section. DTCs indicate results of a failure, but do not identify failed component(s) directly. Use scan tool fault messages to find appropriate test.
- As an example, a 2.5L engine starts and runs but has a driveability problem. MIL indicates DTC 14. Refer to DIAGNOSTIC TROUBLE CODES/MESSAGES to translate trouble code number to scan tool fault message. When scan tool fault message is obtained, refer to appropriate test number in TESTS W/CODES article. To clear DTCs, see CLEARING DIAGNOSTIC TROUBLE CODES .