Switching Diagnostic Test Mode
NOTE:
It is better to count the time accurately using a clock. It is impossible to switch the diagnostic mode when an accelerator pedal position sensor circuit has a malfunction. ECM always returns to Diagnostic Test Mode I after ignition switch is turned to OFF position.
- Confirm accelerator pedal is fully released. Turn ignition switch to ON position and wait 3 seconds.
- Fully depress and fully release accelerator pedal 5 times within 5 seconds.
- Wait 7 seconds, then fully depress the accelerator pedal and hold it depressed for about 10 seconds until the MIL starts blinking.
- Fully release the accelerator pedal. See Fig 1.