QT5 Erase and Retest

NOTE: Erasing and retesting will give an indication if the diagnostic trouble codes received in test step QT4 are hard or intermittent faults. Hard faults will be repeated immediately and codes will be displayed during retest. If codes retrieved the first time cannot be re-created, it may be necessary to tap suspect sensors, and shake or wiggle harness in order to induce a failure. Repeat Test Step QT4 each time.

- Confirm code(s) were received in test step QT4.

- Erase the codes in memory.

- Perform the Diagnostic Test Mode as instructed in Test Step QT4.

- Record the trouble codes.

CODES -- Go to QT6. QT6 Diagnostic Trouble Code Chart


NO CODES -- Go to Intermittent Fault Diagnosis. EEC Intermittent Fault Diagnosis